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Maths
Biology
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Responding to change (a2 only)
Infection and response
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Energy transfers (a2 only)
Cell biology
Organisms respond to changes in their internal and external environments (a-level only)
Biological molecules
Organisation
Substance exchange
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Genetic information & variation
Inheritance, variation and evolution
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1l the quest for political stability: germany, 1871-1991
Britain & the wider world: 1745 -1901
The cold war
Inter-war germany
Medieval period: 1066 -1509
2d religious conflict and the church in england, c1529-c1570
2o democracy and nazism: germany, 1918-1945
1f industrialisation and the people: britain, c1783-1885
1c the tudors: england, 1485-1603
2m wars and welfare: britain in transition, 1906-1957
World war two & the holocaust
2n revolution and dictatorship: russia, 1917-1953
2s the making of modern britain, 1951-2007
World war one
Britain: 1509 -1745
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Biology
27 Nov 2025
511
1 page
Steph<3 @studysteph_07
The digestive system and its enzymesplay a crucial role in breaking down food into usable nutrients. This... Show more
Page 1 Digestive System and Enzyme Function
The page details the fundamental aspects of digestion, focusing on enzymes in the digestive system and their functions. Enzymes act as catalysts in breaking down different food molecules, with each enzyme targeting specific substrates. The digestive system's organization follows a hierarchical structure from cells to organ systems.
Definition Enzymes are biological catalysts that speed up chemical reactions in the body without being consumed in the process.
Example Where is protease produced GCSE content shows that protease breaks down proteins into amino acids, while where is lipase produced GCSE material demonstrates that lipase breaks down lipids into fatty acids and glycerol.
Highlight The optimal temperature for enzyme activity is typically around 40°C, beyond which denaturation occurs.
Vocabulary
Quote "Bile emulsifies fats and neutralizes acids, essential for proper digestion in the small intestine."
The page also covers important food tests
The digestive system's organs are detailed, including
Our AI Companion is a student-focused AI tool that offers more than just answers. Built on millions of Knowunity resources, it provides relevant information, personalised study plans, quizzes, and content directly in the chat, adapting to your individual learning journey.
You can download the app from Google Play Store and Apple App Store.
That's right! Enjoy free access to study content, connect with fellow students, and get instant help – all at your fingertips.
19
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Transform this note into: ✓ 50+ Practice Questions ✓ Interactive Flashcards ✓ Full Mock Exam ✓ Essay Outlines
Explore the essential role of enzymes in biochemical reactions, including their structure, function, and mechanisms of action. This summary covers key concepts such as the active site, enzyme specificity, types of inhibitors, and factors affecting enzyme activity. Ideal for A-Level students seeking a comprehensive overview of enzymatic processes.
BiologyExplore the mechanisms of enzyme inhibitors, focusing on competitive and non-competitive inhibition. This summary covers key concepts such as the active site, allosteric site, and the enzyme-substrate complex, providing insights into how inhibitors affect reaction rates. Ideal for students studying biological molecules.
BiologyExplore the mechanisms of cyanide poisoning and the role of enzymes in biological processes. This study note covers key concepts such as enzyme-substrate interactions, the impact of cyanide on cellular respiration, and the importance of maintaining homeostasis. Ideal for AQA Biology students preparing for exams, this resource includes past paper questions and detailed explanations of enzyme activity and DNA replication.
BiologyExplore the key factors affecting enzyme activity, including temperature, pH, enzyme concentration, and substrate concentration. This summary covers the mechanisms of enzyme action, the induced-fit model, competitive inhibition, and practical investigations into enzyme kinetics. Ideal for A Level Biology students preparing for exams.
BiologyExplore the role of enzymes as biological catalysts, including the enzyme-substrate complex, induced fit model, and types of inhibition (competitive and non-competitive). This summary covers key concepts such as enzyme concentration, reaction rates, and the impact of pH on enzyme activity, tailored for AQA specifications.
BiologyExplore the role of enzymes as biological catalysts in digestion, including key digestive enzymes like amylase, proteases, and lipases. Understand how temperature and pH affect enzyme activity and the concept of denaturation. This summary provides essential insights for biology students studying enzyme kinetics and digestion.
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
Steph<3
@studysteph_07
The digestive system and its enzymes play a crucial role in breaking down food into usable nutrients. This comprehensive guide covers enzyme functions, food tests, and the digestive system's organization, with special focus on how enzymes contribute to the digestive... Show more
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Page 1: Digestive System and Enzyme Function
The page details the fundamental aspects of digestion, focusing on enzymes in the digestive system and their functions. Enzymes act as catalysts in breaking down different food molecules, with each enzyme targeting specific substrates. The digestive system's organization follows a hierarchical structure from cells to organ systems.
Definition: Enzymes are biological catalysts that speed up chemical reactions in the body without being consumed in the process.
Example: Where is protease produced GCSE content shows that protease breaks down proteins into amino acids, while where is lipase produced GCSE material demonstrates that lipase breaks down lipids into fatty acids and glycerol.
Highlight: The optimal temperature for enzyme activity is typically around 40°C, beyond which denaturation occurs.
Vocabulary:
Quote: "Bile emulsifies fats and neutralizes acids, essential for proper digestion in the small intestine."
The page also covers important food tests:
The digestive system's organs are detailed, including:
Our AI Companion is a student-focused AI tool that offers more than just answers. Built on millions of Knowunity resources, it provides relevant information, personalised study plans, quizzes, and content directly in the chat, adapting to your individual learning journey.
You can download the app from Google Play Store and Apple App Store.
That's right! Enjoy free access to study content, connect with fellow students, and get instant help – all at your fingertips.
19
Smart Tools NEW
Transform this note into: ✓ 50+ Practice Questions ✓ Interactive Flashcards ✓ Full Mock Exam ✓ Essay Outlines
Explore the essential role of enzymes in biochemical reactions, including their structure, function, and mechanisms of action. This summary covers key concepts such as the active site, enzyme specificity, types of inhibitors, and factors affecting enzyme activity. Ideal for A-Level students seeking a comprehensive overview of enzymatic processes.
BiologyExplore the mechanisms of enzyme inhibitors, focusing on competitive and non-competitive inhibition. This summary covers key concepts such as the active site, allosteric site, and the enzyme-substrate complex, providing insights into how inhibitors affect reaction rates. Ideal for students studying biological molecules.
BiologyExplore the mechanisms of cyanide poisoning and the role of enzymes in biological processes. This study note covers key concepts such as enzyme-substrate interactions, the impact of cyanide on cellular respiration, and the importance of maintaining homeostasis. Ideal for AQA Biology students preparing for exams, this resource includes past paper questions and detailed explanations of enzyme activity and DNA replication.
BiologyExplore the key factors affecting enzyme activity, including temperature, pH, enzyme concentration, and substrate concentration. This summary covers the mechanisms of enzyme action, the induced-fit model, competitive inhibition, and practical investigations into enzyme kinetics. Ideal for A Level Biology students preparing for exams.
BiologyExplore the role of enzymes as biological catalysts, including the enzyme-substrate complex, induced fit model, and types of inhibition (competitive and non-competitive). This summary covers key concepts such as enzyme concentration, reaction rates, and the impact of pH on enzyme activity, tailored for AQA specifications.
BiologyExplore the role of enzymes as biological catalysts in digestion, including key digestive enzymes like amylase, proteases, and lipases. Understand how temperature and pH affect enzyme activity and the concept of denaturation. This summary provides essential insights for biology students studying enzyme kinetics and digestion.
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
