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Britain & the wider world: 1745 -1901
1l the quest for political stability: germany, 1871-1991
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Biology
9 Dec 2025
288
15 pages
eve @eve_c17bzesuwpy19k4f
Ever wondered how your body builds complex molecules from simple building blocks? This guide breaks down the fascinating... Show more
Think of biological molecules like LEGO bricks - small monomers snap together to create massive polymers that do incredible jobs in your body. Monosaccharides, amino acids, and nucleotides are your body's basic building blocks, just waiting to be assembled into something amazing.
Condensation reactions are like molecular glue - they stick two molecules together by removing water and forming strong chemical bonds. It's the opposite of hydrolysis reactions, which break molecules apart by adding water back in. Your body uses these reactions constantly to build and break down everything from the food you eat to the muscles you build.
Carbohydrates start with simple monosaccharides like glucose, galactose, and fructose. These follow a neat 121 ratio formula and can exist as different structural isomers - same ingredients, different arrangements, completely different properties.
Quick Tip Remember that alpha and beta glucose look nearly identical, but that tiny difference in structure completely changes what they can build!
When two monosaccharides join up through condensation, they form disaccharides connected by glycosidic links. Glucose + fructose makes sucrose (table sugar), glucose + galactose creates lactose (milk sugar), and two alpha glucose molecules form maltose.
Picture glucose molecules as tiny energy batteries packed with high-energy bonds. When your cells break these bonds during respiration, they release energy to form ATP molecules - your body's universal energy currency. One glucose molecule can produce up to 38 ATP molecules through aerobic respiration, which is why sugars are such brilliant fuel!
These simple sugars don't just provide quick energy though. They're also the building blocks for major storage molecules like starch in plants and glycogen in animals. Plus, they form the backbone of your genetic material in RNA and DNA.
Polysaccharides are the heavy-duty molecules made from 20 or more carbohydrates joined by condensation reactions. Starch is plants' main energy storage system, and it's only slightly soluble so it won't mess with the cell's water balance.
Exam Focus The iodine test for starch works because iodine atoms fit perfectly into starch's spiral structure, changing the colour from brown to blue-black!
Starch has two components amylose forms long, unbranching chains that spiral into tubes, while amylopectin has branches created by 1-6 glycosidic links. These branches are crucial because they give enzymes more places to attack and break down starch quickly when energy is needed.
Glycogen is essentially the animal version of starch, but it's built for speed. While it shares starch's basic structure of alpha glucose monomers, glycogen is far more highly branched than starch. This means hydrolytic enzymes have loads more access points to break it down rapidly.
Why does this matter? Animals have much higher metabolic rates than plants, so they need energy fast. More branches mean more enzymes can work simultaneously, releasing glucose quickly for respiration. This becomes critical during intense exercise when your blood can't supply glucose fast enough.
Cellulose is completely different - it's made from beta glucose monomers in long, unbranched chains. These chains lie side by side, held together by countless hydrogen bonds. Individual hydrogen bonds are weak, but together they create incredibly strong microfibrils.
Key Insight The difference between alpha and beta glucose might seem tiny, but it's the difference between digestible starch and indigestible cellulose!
The hierarchy goes cellulose molecules → microfibrils → macrofibrils → cellulose fibres. This creates the structural strength that lets trees grow hundreds of feet tall. Unlike starch and glycogen, cellulose is completely insoluble and provides structural support rather than energy storage.
Reducing sugars include all monosaccharides because they have a free C=O group that can react with Benedict's reagent. The Benedict test is your go-to method dissolve your sample in water, add Benedict's reagent, then heat in a 100°C water bath. You'll see a colour change from blue to green to yellow to red, depending on sugar concentration.
Non-reducing sugars like most disaccharides don't have that free C=O group, so they need special treatment. First, do a normal Benedict test to confirm it's negative. Then take a fresh sample, add dilute HCl, and boil for a minute to hydrolyse the disaccharides into monosaccharides.
After neutralising the acid with sodium hydrogen carbonate (watch for the fizzing to stop!), add Benedict's reagent and heat again. Now you should see the colour change if reducing sugars were hidden in the original disaccharide.
Lab Tip The starch test is even simpler - just add iodine drops to your sample. Starch present = blue-black colour. No starch = stays red-brown.
These tests are fundamental for identifying carbohydrates in food samples and understanding how different sugars behave chemically. Master these, and you've got the tools to analyse any carbohydrate sample!
Let's dig deeper into glycogen's incredible efficiency as an energy storage molecule. Like starch, it's only slightly soluble, which means it won't interfere with osmosis in animal cells. This allows massive concentrations to be stored without disrupting cellular water balance.
Glycogen's amylose component forms much shorter unbranching chains compared to starch. These chains are too short to form the spiral tubes that starch creates, but that's actually perfect for rapid breakdown.
The amylopectin component provides both 1-4 and 1-6 glycosidic links, creating a highly branched structure. This branching is glycogen's superpower - more branches mean more enzyme attachment sites, which equals faster glucose release.
Real-World Connection During intense exercise, your muscles can't wait for blood glucose delivery. Glycogen's rapid breakdown provides the instant energy needed for peak performance.
This rapid energy release becomes crucial during anaerobic respiration when oxygen supply can't keep up with energy demands. The highly branched structure ensures your muscles get the glucose they need to keep functioning even when you're pushing your limits.
Lipids are your body's ultimate energy storage molecules, made from glycerol plus three fatty acids. Whether they're solid fats or liquid oils at 20°C depends entirely on their molecular structure. They're incredibly versatile - providing insulation, forming cell membranes, powering respiration, and even helping sharks stay buoyant!
Saturated fatty acids have only single C-C bonds, allowing maximum hydrogen atoms and tight molecular packing. This creates solid fats. Unsaturated fatty acids contain C=C double bonds that cause hydrogen atoms to repel each other, creating kinks that make the molecules slide past each other more easily - hence liquid oils.
Triglycerides form when the OH groups on glycerol join with OH groups on fatty acids through condensation reactions, creating ester bonds and releasing water molecules. This simple structure gives lipids amazing properties.
Energy Fact Lipids contain more than twice the energy per gram compared to carbohydrates - that's why your body prefers them for long-term energy storage!
Their high ratio of energy-rich carbon-hydrogen bonds makes them excellent energy sources. Being large and non-polar, they're completely insoluble in water, so they won't affect osmosis in cells. Plus, when broken down, they actually release water - crucial for animals in dry environments.
Phospholipids are the superstars of cell membranes, consisting of glycerol + two fatty acids + a phosphate group. This creates molecules with split personalities - the phosphate head is hydrophilic (loves water) while the fatty acid tails are hydrophobic (hate water).
This dual nature creates something remarkable in water environments. The hydrophilic heads face outward toward the water, while the hydrophobic tails cluster inward, away from water. This forms bilayers - the foundation of every cell membrane in your body.
These bilayers can form different structures micelles (spherical) or liposomes (hollow spheres), but in cell membranes, they create flat bilayer sheets. The hydrophilic phosphate heads help anchor the membrane at the cell surface, while the fatty acid tails create a barrier that controls what enters and exits the cell.
Membrane Magic Phospholipids can combine with carbohydrates to form glycolipids, adding even more complexity and functionality to cell membranes.
Testing for lipids is straightforward dissolve your sample in ethanol, then add water. If lipids are present, you'll see a cloudy-white emulsion form as the lipids come out of solution. No lipids means the solution stays clear.
Amino acids are the versatile building blocks of all proteins, each containing an amine group, a carboxyl group, and a unique side chain (R group). With 20 naturally occurring amino acids, your body can create an incredible variety of proteins just by changing the order and combination.
When amino acids join through condensation reactions, they form peptide bonds and release water. Two amino acids make a dipeptide, while many create a polypeptide. The sequence of amino acids is determined by protein synthesis following your DNA's triplet code.
This sequence is absolutely critical because it determines how the protein folds, which dictates its function. Change even one amino acid through a DNA mutation, and you could completely alter the protein's shape and destroy its ability to work properly.
Structure-Function Rule In proteins, shape determines function. Get the shape wrong, and the protein becomes useless!
The primary structure is simply the sequence of amino acids joined by peptide bonds in the polypeptide chain. Think of it as the protein's basic blueprint - everything else builds from this foundation. Understanding this sequence is the first step to understanding how proteins work.
Secondary structure emerges when weak hydrogen bonds form between amino acids, causing the chain to fold into either an alpha helix or beta pleated sheet. In alpha helices, the slightly positive hydrogen on NH groups attracts the slightly negative oxygen on C=O groups, creating a twisted spiral structure.
Beta pleated sheets form when hydrogen bonds hold adjacent primary chains together side by side. While individual hydrogen bonds are weak, their combined effect creates significant structural strength. However, changes in temperature or pH can easily break these bonds, causing proteins to denature.
Tertiary structure adds even more complexity with three types of bonds strong disulphide bonds between amino acids (only broken by reducing agents), ionic bonds between charged groups (broken by extreme pH), and hydrophobic interactions where water-hating amino acids cluster together.
Protein Folding The tertiary structure creates the precise 3D shape that determines exactly what job each protein can do.
Quaternary structure occurs when two or more polypeptide chains link together. Haemoglobin has four chains working together, while collagen uses three. This creates two main protein types globular proteins (like haemoglobin) that are soluble and act as chemical reactants, and fibrous proteins (like collagen) that provide structural support.
Testing for proteins uses the biuret test add equal volumes of sodium hydroxide solution to your sample, then add a few drops of dilute copper II sulfate solution. A purple colour indicates peptide bonds (and therefore protein), while blue means no protein present.
Enzymes are specialist proteins that lower the activation energy needed for reactions to occur. Their complex tertiary and quaternary structures create precise 3D shapes with specific active sites where substrates bind to form enzyme-substrate complexes.
The induced fit model explains how enzymes work dynamically. Initially, the active site doesn't perfectly match the substrate, but as the substrate approaches, hydrogen and ionic bonds form, causing the active site to change shape and grip the substrate tightly.
Enzyme Efficiency This induced fit creates strain on substrate bonds, making them easier to break and dramatically lowering the energy needed for reactions.
This flexibility explains why the older lock and key model is outdated - enzymes aren't rigid like locks, but flexible molecules that adapt to their substrates. The induced fit also explains how other molecules can bind to enzymes at sites other than the active site, altering enzyme activity through allosteric regulation.
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BiologyExplore the essential concepts of biological molecules, including the roles of water, monomers, and polymers. This summary covers carbohydrates, their types (monosaccharides, disaccharides, polysaccharides), and key processes like condensation and hydrolysis. Ideal for biology students seeking to grasp the fundamentals of biomolecules and their significance in metabolic reactions.
BiologyExplore the essential concepts of biological molecules, including carbohydrates, proteins, and lipids. This summary covers the structure and function of key macromolecules, condensation and hydrolysis reactions, and the role of hydrogen bonds in biological systems. Ideal for students preparing for exams or seeking a comprehensive understanding of biomolecules.
BiologyExplore the fundamentals of metabolism, including its definition, examples like respiration, and the metabolic rate. This summary covers the three main types of food molecules: carbohydrates, proteins, and lipids, essential for GCSE Biology students. Enhance your understanding of cellular processes and energy usage in living organisms.
BiologyExplore the fundamental concepts of biochemistry, including the structure and function of carbohydrates, lipids, proteins, and water properties. This summary covers key topics such as macronutrients, biological macromolecules, and the role of inorganic ions in biological systems. Ideal for WJEC AS students preparing for exams.
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This app is really great. There are so many study notes and help [...]. My problem subject is French, for example, and the app has so many options for help. Thanks to this app, I have improved my French. I would recommend it to anyone.
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Wow, I am really amazed. I just tried the app because I've seen it advertised many times and was absolutely stunned. This app is THE HELP you want for school and above all, it offers so many things, such as workouts and fact sheets, which have been VERY helpful to me personally.
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Just amazing. Let's me revise 10x better, this app is a quick 10/10. I highly recommend it to anyone. I can watch and search for notes. I can save them in the subject folder. I can revise it any time when I come back. If you haven't tried this app, you're really missing out.
Basil
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This app has made me feel so much more confident in my exam prep, not only through boosting my own self confidence through the features that allow you to connect with others and feel less alone, but also through the way the app itself is centred around making you feel better. It is easy to navigate, fun to use, and helpful to anyone struggling in absolutely any way.
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The app's just great! All I have to do is enter the topic in the search bar and I get the response real fast. I don't have to watch 10 YouTube videos to understand something, so I'm saving my time. Highly recommended!
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In school I was really bad at maths but thanks to the app, I am doing better now. I am so grateful that you made the app.
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I know a lot of apps use fake accounts to boost their reviews but this app deserves it all. Originally I was getting 4 in my English exams and this time I got a grade 7. I didn’t even know about this app three days until the exam and it has helped A LOT. Please actually trust me and use it as I’m sure you too will see developments.
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This apps acc the goat. I find revision so boring but this app makes it so easy to organize it all and then you can ask the freeeee ai to test yourself so good and you can easily upload your own stuff. highly recommend as someone taking mocks now
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eve
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Ever wondered how your body builds complex molecules from simple building blocks? This guide breaks down the fascinating world of biological molecules - from the basic monomers that form everything in your body to the complex proteins that keep you... Show more
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Think of biological molecules like LEGO bricks - small monomers snap together to create massive polymers that do incredible jobs in your body. Monosaccharides, amino acids, and nucleotides are your body's basic building blocks, just waiting to be assembled into something amazing.
Condensation reactions are like molecular glue - they stick two molecules together by removing water and forming strong chemical bonds. It's the opposite of hydrolysis reactions, which break molecules apart by adding water back in. Your body uses these reactions constantly to build and break down everything from the food you eat to the muscles you build.
Carbohydrates start with simple monosaccharides like glucose, galactose, and fructose. These follow a neat 1:2:1 ratio formula and can exist as different structural isomers - same ingredients, different arrangements, completely different properties.
Quick Tip: Remember that alpha and beta glucose look nearly identical, but that tiny difference in structure completely changes what they can build!
When two monosaccharides join up through condensation, they form disaccharides connected by glycosidic links. Glucose + fructose makes sucrose (table sugar), glucose + galactose creates lactose (milk sugar), and two alpha glucose molecules form maltose.
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Picture glucose molecules as tiny energy batteries packed with high-energy bonds. When your cells break these bonds during respiration, they release energy to form ATP molecules - your body's universal energy currency. One glucose molecule can produce up to 38 ATP molecules through aerobic respiration, which is why sugars are such brilliant fuel!
These simple sugars don't just provide quick energy though. They're also the building blocks for major storage molecules like starch in plants and glycogen in animals. Plus, they form the backbone of your genetic material in RNA and DNA.
Polysaccharides are the heavy-duty molecules made from 20 or more carbohydrates joined by condensation reactions. Starch is plants' main energy storage system, and it's only slightly soluble so it won't mess with the cell's water balance.
Exam Focus: The iodine test for starch works because iodine atoms fit perfectly into starch's spiral structure, changing the colour from brown to blue-black!
Starch has two components: amylose forms long, unbranching chains that spiral into tubes, while amylopectin has branches created by 1-6 glycosidic links. These branches are crucial because they give enzymes more places to attack and break down starch quickly when energy is needed.
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Glycogen is essentially the animal version of starch, but it's built for speed. While it shares starch's basic structure of alpha glucose monomers, glycogen is far more highly branched than starch. This means hydrolytic enzymes have loads more access points to break it down rapidly.
Why does this matter? Animals have much higher metabolic rates than plants, so they need energy fast. More branches mean more enzymes can work simultaneously, releasing glucose quickly for respiration. This becomes critical during intense exercise when your blood can't supply glucose fast enough.
Cellulose is completely different - it's made from beta glucose monomers in long, unbranched chains. These chains lie side by side, held together by countless hydrogen bonds. Individual hydrogen bonds are weak, but together they create incredibly strong microfibrils.
Key Insight: The difference between alpha and beta glucose might seem tiny, but it's the difference between digestible starch and indigestible cellulose!
The hierarchy goes: cellulose molecules → microfibrils → macrofibrils → cellulose fibres. This creates the structural strength that lets trees grow hundreds of feet tall. Unlike starch and glycogen, cellulose is completely insoluble and provides structural support rather than energy storage.
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Reducing sugars include all monosaccharides because they have a free C=O group that can react with Benedict's reagent. The Benedict test is your go-to method: dissolve your sample in water, add Benedict's reagent, then heat in a 100°C water bath. You'll see a colour change from blue to green to yellow to red, depending on sugar concentration.
Non-reducing sugars like most disaccharides don't have that free C=O group, so they need special treatment. First, do a normal Benedict test to confirm it's negative. Then take a fresh sample, add dilute HCl, and boil for a minute to hydrolyse the disaccharides into monosaccharides.
After neutralising the acid with sodium hydrogen carbonate (watch for the fizzing to stop!), add Benedict's reagent and heat again. Now you should see the colour change if reducing sugars were hidden in the original disaccharide.
Lab Tip: The starch test is even simpler - just add iodine drops to your sample. Starch present = blue-black colour. No starch = stays red-brown.
These tests are fundamental for identifying carbohydrates in food samples and understanding how different sugars behave chemically. Master these, and you've got the tools to analyse any carbohydrate sample!
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Let's dig deeper into glycogen's incredible efficiency as an energy storage molecule. Like starch, it's only slightly soluble, which means it won't interfere with osmosis in animal cells. This allows massive concentrations to be stored without disrupting cellular water balance.
Glycogen's amylose component forms much shorter unbranching chains compared to starch. These chains are too short to form the spiral tubes that starch creates, but that's actually perfect for rapid breakdown.
The amylopectin component provides both 1-4 and 1-6 glycosidic links, creating a highly branched structure. This branching is glycogen's superpower - more branches mean more enzyme attachment sites, which equals faster glucose release.
Real-World Connection: During intense exercise, your muscles can't wait for blood glucose delivery. Glycogen's rapid breakdown provides the instant energy needed for peak performance.
This rapid energy release becomes crucial during anaerobic respiration when oxygen supply can't keep up with energy demands. The highly branched structure ensures your muscles get the glucose they need to keep functioning even when you're pushing your limits.
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Lipids are your body's ultimate energy storage molecules, made from glycerol plus three fatty acids. Whether they're solid fats or liquid oils at 20°C depends entirely on their molecular structure. They're incredibly versatile - providing insulation, forming cell membranes, powering respiration, and even helping sharks stay buoyant!
Saturated fatty acids have only single C-C bonds, allowing maximum hydrogen atoms and tight molecular packing. This creates solid fats. Unsaturated fatty acids contain C=C double bonds that cause hydrogen atoms to repel each other, creating kinks that make the molecules slide past each other more easily - hence liquid oils.
Triglycerides form when the OH groups on glycerol join with OH groups on fatty acids through condensation reactions, creating ester bonds and releasing water molecules. This simple structure gives lipids amazing properties.
Energy Fact: Lipids contain more than twice the energy per gram compared to carbohydrates - that's why your body prefers them for long-term energy storage!
Their high ratio of energy-rich carbon-hydrogen bonds makes them excellent energy sources. Being large and non-polar, they're completely insoluble in water, so they won't affect osmosis in cells. Plus, when broken down, they actually release water - crucial for animals in dry environments.
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Phospholipids are the superstars of cell membranes, consisting of glycerol + two fatty acids + a phosphate group. This creates molecules with split personalities - the phosphate head is hydrophilic (loves water) while the fatty acid tails are hydrophobic (hate water).
This dual nature creates something remarkable in water environments. The hydrophilic heads face outward toward the water, while the hydrophobic tails cluster inward, away from water. This forms bilayers - the foundation of every cell membrane in your body.
These bilayers can form different structures: micelles (spherical) or liposomes (hollow spheres), but in cell membranes, they create flat bilayer sheets. The hydrophilic phosphate heads help anchor the membrane at the cell surface, while the fatty acid tails create a barrier that controls what enters and exits the cell.
Membrane Magic: Phospholipids can combine with carbohydrates to form glycolipids, adding even more complexity and functionality to cell membranes.
Testing for lipids is straightforward: dissolve your sample in ethanol, then add water. If lipids are present, you'll see a cloudy-white emulsion form as the lipids come out of solution. No lipids means the solution stays clear.
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Amino acids are the versatile building blocks of all proteins, each containing an amine group, a carboxyl group, and a unique side chain (R group). With 20 naturally occurring amino acids, your body can create an incredible variety of proteins just by changing the order and combination.
When amino acids join through condensation reactions, they form peptide bonds and release water. Two amino acids make a dipeptide, while many create a polypeptide. The sequence of amino acids is determined by protein synthesis following your DNA's triplet code.
This sequence is absolutely critical because it determines how the protein folds, which dictates its function. Change even one amino acid through a DNA mutation, and you could completely alter the protein's shape and destroy its ability to work properly.
Structure-Function Rule: In proteins, shape determines function. Get the shape wrong, and the protein becomes useless!
The primary structure is simply the sequence of amino acids joined by peptide bonds in the polypeptide chain. Think of it as the protein's basic blueprint - everything else builds from this foundation. Understanding this sequence is the first step to understanding how proteins work.
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Secondary structure emerges when weak hydrogen bonds form between amino acids, causing the chain to fold into either an alpha helix or beta pleated sheet. In alpha helices, the slightly positive hydrogen on NH groups attracts the slightly negative oxygen on C=O groups, creating a twisted spiral structure.
Beta pleated sheets form when hydrogen bonds hold adjacent primary chains together side by side. While individual hydrogen bonds are weak, their combined effect creates significant structural strength. However, changes in temperature or pH can easily break these bonds, causing proteins to denature.
Tertiary structure adds even more complexity with three types of bonds: strong disulphide bonds between amino acids (only broken by reducing agents), ionic bonds between charged groups (broken by extreme pH), and hydrophobic interactions where water-hating amino acids cluster together.
Protein Folding: The tertiary structure creates the precise 3D shape that determines exactly what job each protein can do.
Quaternary structure occurs when two or more polypeptide chains link together. Haemoglobin has four chains working together, while collagen uses three. This creates two main protein types: globular proteins (like haemoglobin) that are soluble and act as chemical reactants, and fibrous proteins (like collagen) that provide structural support.
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Testing for proteins uses the biuret test: add equal volumes of sodium hydroxide solution to your sample, then add a few drops of dilute copper II sulfate solution. A purple colour indicates peptide bonds (and therefore protein), while blue means no protein present.
Enzymes are specialist proteins that lower the activation energy needed for reactions to occur. Their complex tertiary and quaternary structures create precise 3D shapes with specific active sites where substrates bind to form enzyme-substrate complexes.
The induced fit model explains how enzymes work dynamically. Initially, the active site doesn't perfectly match the substrate, but as the substrate approaches, hydrogen and ionic bonds form, causing the active site to change shape and grip the substrate tightly.
Enzyme Efficiency: This induced fit creates strain on substrate bonds, making them easier to break and dramatically lowering the energy needed for reactions.
This flexibility explains why the older lock and key model is outdated - enzymes aren't rigid like locks, but flexible molecules that adapt to their substrates. The induced fit also explains how other molecules can bind to enzymes at sites other than the active site, altering enzyme activity through allosteric regulation.
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Explore comprehensive revision notes on biological molecules, including carbohydrates, lipids, proteins, and nucleic acids. Understand key concepts such as enzyme-substrate complexes, DNA replication, and the properties of ATP. Ideal for AS/A Level Biology students preparing for exams.
Biologysimplified notes for quick recall
BiologyExplore the essential concepts of biological molecules, including the roles of water, monomers, and polymers. This summary covers carbohydrates, their types (monosaccharides, disaccharides, polysaccharides), and key processes like condensation and hydrolysis. Ideal for biology students seeking to grasp the fundamentals of biomolecules and their significance in metabolic reactions.
BiologyExplore the essential concepts of biological molecules, including carbohydrates, proteins, and lipids. This summary covers the structure and function of key macromolecules, condensation and hydrolysis reactions, and the role of hydrogen bonds in biological systems. Ideal for students preparing for exams or seeking a comprehensive understanding of biomolecules.
BiologyExplore the fundamentals of metabolism, including its definition, examples like respiration, and the metabolic rate. This summary covers the three main types of food molecules: carbohydrates, proteins, and lipids, essential for GCSE Biology students. Enhance your understanding of cellular processes and energy usage in living organisms.
BiologyExplore the fundamental concepts of biochemistry, including the structure and function of carbohydrates, lipids, proteins, and water properties. This summary covers key topics such as macronutrients, biological macromolecules, and the role of inorganic ions in biological systems. Ideal for WJEC AS students preparing for exams.
BiologyApp Store
Google Play
The app is very easy to use and well designed. I have found everything I was looking for so far and have been able to learn a lot from the presentations! I will definitely use the app for a class assignment! And of course it also helps a lot as an inspiration.
Stefan S
iOS user
This app is really great. There are so many study notes and help [...]. My problem subject is French, for example, and the app has so many options for help. Thanks to this app, I have improved my French. I would recommend it to anyone.
Samantha Klich
Android user
Wow, I am really amazed. I just tried the app because I've seen it advertised many times and was absolutely stunned. This app is THE HELP you want for school and above all, it offers so many things, such as workouts and fact sheets, which have been VERY helpful to me personally.
Anna
iOS user
Best app on earth! no words because it’s too good
Thomas R
iOS user
Just amazing. Let's me revise 10x better, this app is a quick 10/10. I highly recommend it to anyone. I can watch and search for notes. I can save them in the subject folder. I can revise it any time when I come back. If you haven't tried this app, you're really missing out.
Basil
Android user
This app has made me feel so much more confident in my exam prep, not only through boosting my own self confidence through the features that allow you to connect with others and feel less alone, but also through the way the app itself is centred around making you feel better. It is easy to navigate, fun to use, and helpful to anyone struggling in absolutely any way.
David K
iOS user
The app's just great! All I have to do is enter the topic in the search bar and I get the response real fast. I don't have to watch 10 YouTube videos to understand something, so I'm saving my time. Highly recommended!
Sudenaz Ocak
Android user
In school I was really bad at maths but thanks to the app, I am doing better now. I am so grateful that you made the app.
Greenlight Bonnie
Android user
very reliable app to help and grow your ideas of Maths, English and other related topics in your works. please use this app if your struggling in areas, this app is key for that. wish I'd of done a review before. and it's also free so don't worry about that.
Rohan U
Android user
I know a lot of apps use fake accounts to boost their reviews but this app deserves it all. Originally I was getting 4 in my English exams and this time I got a grade 7. I didn’t even know about this app three days until the exam and it has helped A LOT. Please actually trust me and use it as I’m sure you too will see developments.
Xander S
iOS user
THE QUIZES AND FLASHCARDS ARE SO USEFUL AND I LOVE THE SCHOOLGPT. IT ALSO IS LITREALLY LIKE CHATGPT BUT SMARTER!! HELPED ME WITH MY MASCARA PROBLEMS TOO!! AS WELL AS MY REAL SUBJECTS ! DUHHH 😍😁😲🤑💗✨🎀😮
Elisha
iOS user
This apps acc the goat. I find revision so boring but this app makes it so easy to organize it all and then you can ask the freeeee ai to test yourself so good and you can easily upload your own stuff. highly recommend as someone taking mocks now
Paul T
iOS user
The app is very easy to use and well designed. I have found everything I was looking for so far and have been able to learn a lot from the presentations! I will definitely use the app for a class assignment! And of course it also helps a lot as an inspiration.
Stefan S
iOS user
This app is really great. There are so many study notes and help [...]. My problem subject is French, for example, and the app has so many options for help. Thanks to this app, I have improved my French. I would recommend it to anyone.
Samantha Klich
Android user
Wow, I am really amazed. I just tried the app because I've seen it advertised many times and was absolutely stunned. This app is THE HELP you want for school and above all, it offers so many things, such as workouts and fact sheets, which have been VERY helpful to me personally.
Anna
iOS user
Best app on earth! no words because it’s too good
Thomas R
iOS user
Just amazing. Let's me revise 10x better, this app is a quick 10/10. I highly recommend it to anyone. I can watch and search for notes. I can save them in the subject folder. I can revise it any time when I come back. If you haven't tried this app, you're really missing out.
Basil
Android user
This app has made me feel so much more confident in my exam prep, not only through boosting my own self confidence through the features that allow you to connect with others and feel less alone, but also through the way the app itself is centred around making you feel better. It is easy to navigate, fun to use, and helpful to anyone struggling in absolutely any way.
David K
iOS user
The app's just great! All I have to do is enter the topic in the search bar and I get the response real fast. I don't have to watch 10 YouTube videos to understand something, so I'm saving my time. Highly recommended!
Sudenaz Ocak
Android user
In school I was really bad at maths but thanks to the app, I am doing better now. I am so grateful that you made the app.
Greenlight Bonnie
Android user
very reliable app to help and grow your ideas of Maths, English and other related topics in your works. please use this app if your struggling in areas, this app is key for that. wish I'd of done a review before. and it's also free so don't worry about that.
Rohan U
Android user
I know a lot of apps use fake accounts to boost their reviews but this app deserves it all. Originally I was getting 4 in my English exams and this time I got a grade 7. I didn’t even know about this app three days until the exam and it has helped A LOT. Please actually trust me and use it as I’m sure you too will see developments.
Xander S
iOS user
THE QUIZES AND FLASHCARDS ARE SO USEFUL AND I LOVE THE SCHOOLGPT. IT ALSO IS LITREALLY LIKE CHATGPT BUT SMARTER!! HELPED ME WITH MY MASCARA PROBLEMS TOO!! AS WELL AS MY REAL SUBJECTS ! DUHHH 😍😁😲🤑💗✨🎀😮
Elisha
iOS user
This apps acc the goat. I find revision so boring but this app makes it so easy to organize it all and then you can ask the freeeee ai to test yourself so good and you can easily upload your own stuff. highly recommend as someone taking mocks now
Paul T
iOS user
Biología
Sociology