Maths
Chemistry
Biology
English Language
History
Responding to change (a2 only)
Infection and response
Homeostasis and response
Energy transfers (a2 only)
Cell biology
Organisms respond to changes in their internal and external environments (a-level only)
Biological molecules
Organisation
Substance exchange
Bioenergetics
Genetic information & variation
Inheritance, variation and evolution
Genetics & ecosystems (a2 only)
Ecology
Cells
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Britain & the wider world: 1745 -1901
1l the quest for political stability: germany, 1871-1991
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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4,046
•
11 Dec 2025
•
Subhan 👨🔬
@soobbb
This BTEC Applied Science revision guide covers the fundamentals you'll... Show more
This revision guide is your roadmap to success in the Unit 1 exam, covering three core scientific areas. The guide splits into biology, chemistry, and physics sections, each targeting the specific knowledge you'll need.
Use the progress checkboxes to track which topics you've mastered and which need more work. This honest self-assessment will help you focus your study time where it matters most.
Remember: This guide supports your revision but doesn't replace your class notes - use both together for the best results.
Your exam is scheduled for Monday 5th June 2016 at 9:00am and lasts 1 hour 30 minutes. Each section contains practice questions that mirror what you'll face in the actual exam - completing these is crucial for building confidence.
The 'secure, unsure, weak' tracking system helps you identify knowledge gaps before exam day. Mark topics honestly and return to 'weak' areas multiple times during your revision period.
Navigation is straightforward - click page numbers to jump to specific topics, and use the home icon to return to the contents page quickly. This saves valuable revision time.
Top tip: Practice makes perfect - always attempt the exam questions after revising each topic.
The guide covers three main scientific areas essential for your BTEC Applied Science qualification. Biology focuses on cell structure and function, including microscopy techniques and specialised tissues that form complex organisms.
Chemistry explores periodicity and element properties, covering electronic structure, chemical bonding types, and how the periodic table organises elements by their characteristics.
Physics tackles waves in communication, examining how different wave types enable modern communication systems through fibre optics and electromagnetic radiation.
Study strategy: Use the revision checkboxes to create a personalised study schedule, prioritising topics marked as 'weak' or 'unsure'.
Cell theory forms the bedrock of biological understanding. Every living organism consists of cells and cell products, with new cells only forming through division of existing ones. This fundamental principle explains how life maintains and reproduces itself.
Eukaryotic cells (plants and animals) contain a nucleus and membrane-bound organelles, making them complex structures. Prokaryotic cells (bacteria) lack these features, representing simpler but highly successful life forms.
The development of cell theory spans centuries of scientific discovery. Key milestones include Robert Hooke's first cell observations in 1665, Anton van Leeuwenhoek's bacterial discoveries, and Louis Pasteur's disproof of spontaneous generation in 1860.
Exam focus: You'll need to compare eukaryotic and prokaryotic cells, plus explain how cell theory developed through scientific discoveries.
Microscopy reveals cellular structures invisible to the naked eye, using either light or electron beams. Light microscopes offer lower magnification (×500) but allow observation of living specimens, whilst electron microscopes achieve ×500,000 magnification with incredible detail.
The magnification equation helps calculate how much larger an image appears compared to the actual specimen. You'll need to manipulate this formula to find missing values in exam questions.
Electron microscopy produces detailed images called electron micrographs but destroys samples during preparation. This trade-off between detail and specimen preservation affects which technique scientists choose for different investigations.
Calculation tip: Always show your working and convert units consistently (usually to micrometers) when solving magnification problems.
Animal cells contain specialized organelles that work together like a biological factory. The nucleus controls cellular activities, whilst mitochondria generate energy and ribosomes manufacture proteins essential for life processes.
Protein synthesis follows a precise pathway through the cell. Ribosomes on the rough endoplasmic reticulum create proteins, which travel to the Golgi apparatus for modification and packaging before secretion via exocytosis.
Each organelle has specific functions that contribute to cellular survival. Lysosomes digest waste materials, the endoplasmic reticulum transports substances, and centrioles organize cell division - understanding these connections is crucial.
Memory aid: Link each organelle's structure directly to its function - this connection will help you remember both aspects for exam questions.
Plant cells share many features with animal cells but contain unique structures that enable photosynthesis and structural support. Chloroplasts capture light energy, cell walls provide rigidity, and large vacuoles maintain cellular pressure.
The cell wall consists of cellulose layers that create a protective, supportive framework. Plasmodesmata - microscopic channels through cell walls - enable communication and transport between adjacent plant cells.
Chloroplast structure directly supports photosynthesis function. The double membrane encloses stroma fluid, whilst thylakoids stack into grana containing chlorophyll pigments that capture light energy for food production.
Key difference: Plant cells can photosynthesize due to chloroplasts and maintain structural rigidity through cell walls - features absent in animal cells.
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.
App 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
Subhan 👨🔬
@soobbb
This BTEC Applied Science revision guide covers the fundamentals you'll need for your Unit 1 exam. It breaks down key concepts in biology, chemistry, and physics into digestible sections that make complex scientific principles easier to understand and remember.
Access to all documents
Improve your grades
Join milions of students
By signing up you accept Terms of Service and Privacy Policy
This revision guide is your roadmap to success in the Unit 1 exam, covering three core scientific areas. The guide splits into biology, chemistry, and physics sections, each targeting the specific knowledge you'll need.
Use the progress checkboxes to track which topics you've mastered and which need more work. This honest self-assessment will help you focus your study time where it matters most.
Remember: This guide supports your revision but doesn't replace your class notes - use both together for the best results.
Access to all documents
Improve your grades
Join milions of students
By signing up you accept Terms of Service and Privacy Policy
Your exam is scheduled for Monday 5th June 2016 at 9:00am and lasts 1 hour 30 minutes. Each section contains practice questions that mirror what you'll face in the actual exam - completing these is crucial for building confidence.
The 'secure, unsure, weak' tracking system helps you identify knowledge gaps before exam day. Mark topics honestly and return to 'weak' areas multiple times during your revision period.
Navigation is straightforward - click page numbers to jump to specific topics, and use the home icon to return to the contents page quickly. This saves valuable revision time.
Top tip: Practice makes perfect - always attempt the exam questions after revising each topic.
Access to all documents
Improve your grades
Join milions of students
By signing up you accept Terms of Service and Privacy Policy
The guide covers three main scientific areas essential for your BTEC Applied Science qualification. Biology focuses on cell structure and function, including microscopy techniques and specialised tissues that form complex organisms.
Chemistry explores periodicity and element properties, covering electronic structure, chemical bonding types, and how the periodic table organises elements by their characteristics.
Physics tackles waves in communication, examining how different wave types enable modern communication systems through fibre optics and electromagnetic radiation.
Study strategy: Use the revision checkboxes to create a personalised study schedule, prioritising topics marked as 'weak' or 'unsure'.
Access to all documents
Improve your grades
Join milions of students
By signing up you accept Terms of Service and Privacy Policy
Cell theory forms the bedrock of biological understanding. Every living organism consists of cells and cell products, with new cells only forming through division of existing ones. This fundamental principle explains how life maintains and reproduces itself.
Eukaryotic cells (plants and animals) contain a nucleus and membrane-bound organelles, making them complex structures. Prokaryotic cells (bacteria) lack these features, representing simpler but highly successful life forms.
The development of cell theory spans centuries of scientific discovery. Key milestones include Robert Hooke's first cell observations in 1665, Anton van Leeuwenhoek's bacterial discoveries, and Louis Pasteur's disproof of spontaneous generation in 1860.
Exam focus: You'll need to compare eukaryotic and prokaryotic cells, plus explain how cell theory developed through scientific discoveries.
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Improve your grades
Join milions of students
By signing up you accept Terms of Service and Privacy Policy
Microscopy reveals cellular structures invisible to the naked eye, using either light or electron beams. Light microscopes offer lower magnification (×500) but allow observation of living specimens, whilst electron microscopes achieve ×500,000 magnification with incredible detail.
The magnification equation helps calculate how much larger an image appears compared to the actual specimen. You'll need to manipulate this formula to find missing values in exam questions.
Electron microscopy produces detailed images called electron micrographs but destroys samples during preparation. This trade-off between detail and specimen preservation affects which technique scientists choose for different investigations.
Calculation tip: Always show your working and convert units consistently (usually to micrometers) when solving magnification problems.
Access to all documents
Improve your grades
Join milions of students
By signing up you accept Terms of Service and Privacy Policy
Animal cells contain specialized organelles that work together like a biological factory. The nucleus controls cellular activities, whilst mitochondria generate energy and ribosomes manufacture proteins essential for life processes.
Protein synthesis follows a precise pathway through the cell. Ribosomes on the rough endoplasmic reticulum create proteins, which travel to the Golgi apparatus for modification and packaging before secretion via exocytosis.
Each organelle has specific functions that contribute to cellular survival. Lysosomes digest waste materials, the endoplasmic reticulum transports substances, and centrioles organize cell division - understanding these connections is crucial.
Memory aid: Link each organelle's structure directly to its function - this connection will help you remember both aspects for exam questions.
Access to all documents
Improve your grades
Join milions of students
By signing up you accept Terms of Service and Privacy Policy
Plant cells share many features with animal cells but contain unique structures that enable photosynthesis and structural support. Chloroplasts capture light energy, cell walls provide rigidity, and large vacuoles maintain cellular pressure.
The cell wall consists of cellulose layers that create a protective, supportive framework. Plasmodesmata - microscopic channels through cell walls - enable communication and transport between adjacent plant cells.
Chloroplast structure directly supports photosynthesis function. The double membrane encloses stroma fluid, whilst thylakoids stack into grana containing chlorophyll pigments that capture light energy for food production.
Key difference: Plant cells can photosynthesize due to chloroplasts and maintain structural rigidity through cell walls - features absent in animal cells.
Access to all documents
Improve your grades
Join milions of students
By signing up you accept Terms of Service and Privacy Policy
Access to all documents
Improve your grades
Join milions of students
By signing up you accept Terms of Service and Privacy Policy
Access to all documents
Improve your grades
Join milions of students
By signing up you accept Terms of Service and Privacy Policy
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.
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Transform this note into: ✓ 50+ Practice Questions ✓ Interactive Flashcards ✓ Full Mock Exam ✓ Essay Outlines
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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
Sociology