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85
2
Phoebe Watson
13/09/2025
Biology
science revision
632
•
13 Sept 2025
•
Year 8 Science Revision: Animal and Plant Cells, Respiratory System Worksheets & More!
Phoebe Watson
@phoebewatson_godq
Animal and Plant Cells
This page presents diagrams of animal and plant cells, highlighting their key components.
Highlight: The diagrams clearly show the differences between animal and plant cells, which is crucial for Year 8 science revision animal and plant cells.
Key components of animal cells include:
- Cell membrane
- Cytoplasm
- Nucleus
- Mitochondrion
Plant cells have additional structures:
- Cellulose cell wall
- Chloroplast
- Large vacuole
Vocabulary: Chloroplast - An organelle in plant cells responsible for photosynthesis.
Definition: Vacuole - A membrane-bound organelle in plant cells that stores water, nutrients, and waste products.
Introduction to the Respiratory System
This page introduces the human respiratory system and includes a vocabulary exercise.
Example: The page includes an unscrambling exercise to help students learn the parts of the respiratory system, which is an effective method for Year 8 respiratory system study.
Key components of the respiratory system:
- Trachea
- Ribs
- Diaphragm
- Alveoli
- Bronchioles
- Bronchi
- Intercostal muscles
- Lungs
Highlight: The lungs are the primary organs responsible for gas exchange in the respiratory system.
Respiratory System Diagram
This page features a labeled diagram of the human respiratory system, which is essential for Year 8 respiratory system study notes.
Key components shown in the diagram:
- Trachea
- Ribs
- Heart
- Diaphragm
- Alveoli
- Intercostal muscles
- Bronchus
- Bronchiole
Example: Students are encouraged to use the labeled diagram to identify the functions of each part of the respiratory system, reinforcing their understanding of respiratory system bbc bitesize KS3 content.
The Breathing Process
This page explains the processes of inhalation and exhalation, which are crucial for understanding the process of breathing in humans.
Inhalation:
- Ribs move out and up
- Diaphragm flattens (contracts) and moves downwards
- Volume of the lungs (chest cavity) increases, and pressure decreases
- Air moves into the lungs
Exhalation:
- Ribs move in and down
- Diaphragm relaxes and moves upwards
- Volume of the lungs (chest cavity) decreases, and pressure increases
- Air moves out of the lungs
Highlight: The page includes a link to a video explaining how lungs work, which can be helpful for visual learners studying gas exchange bbc bitesize KS3.
Example: Students are asked to draw diagrams showing what happens during inhalation and exhalation, reinforcing their understanding of the breathing process in humans.
Animal and Plant Cells, and the Respiratory System
This document covers essential topics in Year 8 science revision, including animal and plant cells and the respiratory system. It provides detailed information, diagrams, and exercises to help students understand these fundamental concepts.
Key points:
- Comparison of animal and plant cell structures
- Components of the human respiratory system
- Process of inhalation and exhalation
- Functions of different parts of the respiratory system
We thought you’d never ask...
What is the Knowunity AI companion?
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.
Where can I download the Knowunity app?
You can download the app from Google Play Store and Apple App Store.
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Students love us — and so will you.
4.9/5
App Store
4.8/5
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
Year 8 Science Revision: Animal and Plant Cells, Respiratory System Worksheets & More!
Phoebe Watson
@phoebewatson_godq
This document provides an overview of key concepts in Year 8 science, focusing on animal and plant cells as well as the respiratory system. It includes diagrams, exercises, and explanations to help students understand these topics.
Animal and Plant Cells
This page presents diagrams of animal and plant cells, highlighting their key components.
Highlight: The diagrams clearly show the differences between animal and plant cells, which is crucial for Year 8 science revision animal and plant cells.
Key components of animal cells include:
- Cell membrane
- Cytoplasm
- Nucleus
- Mitochondrion
Plant cells have additional structures:
- Cellulose cell wall
- Chloroplast
- Large vacuole
Vocabulary: Chloroplast - An organelle in plant cells responsible for photosynthesis.
Definition: Vacuole - A membrane-bound organelle in plant cells that stores water, nutrients, and waste products.
Sign up to see the contentIt's free!
Access to all documents
Improve your grades
Join milions of students
By signing up you accept Terms of Service and Privacy Policy
Introduction to the Respiratory System
This page introduces the human respiratory system and includes a vocabulary exercise.
Example: The page includes an unscrambling exercise to help students learn the parts of the respiratory system, which is an effective method for Year 8 respiratory system study.
Key components of the respiratory system:
- Trachea
- Ribs
- Diaphragm
- Alveoli
- Bronchioles
- Bronchi
- Intercostal muscles
- Lungs
Highlight: The lungs are the primary organs responsible for gas exchange in the respiratory system.
Sign up to see the contentIt's free!
Access to all documents
Improve your grades
Join milions of students
By signing up you accept Terms of Service and Privacy Policy
Respiratory System Diagram
This page features a labeled diagram of the human respiratory system, which is essential for Year 8 respiratory system study notes.
Key components shown in the diagram:
- Trachea
- Ribs
- Heart
- Diaphragm
- Alveoli
- Intercostal muscles
- Bronchus
- Bronchiole
Example: Students are encouraged to use the labeled diagram to identify the functions of each part of the respiratory system, reinforcing their understanding of respiratory system bbc bitesize KS3 content.
Sign up to see the contentIt's free!
Access to all documents
Improve your grades
Join milions of students
By signing up you accept Terms of Service and Privacy Policy
The Breathing Process
This page explains the processes of inhalation and exhalation, which are crucial for understanding the process of breathing in humans.
Inhalation:
- Ribs move out and up
- Diaphragm flattens (contracts) and moves downwards
- Volume of the lungs (chest cavity) increases, and pressure decreases
- Air moves into the lungs
Exhalation:
- Ribs move in and down
- Diaphragm relaxes and moves upwards
- Volume of the lungs (chest cavity) decreases, and pressure increases
- Air moves out of the lungs
Highlight: The page includes a link to a video explaining how lungs work, which can be helpful for visual learners studying gas exchange bbc bitesize KS3.
Example: Students are asked to draw diagrams showing what happens during inhalation and exhalation, reinforcing their understanding of the breathing process in humans.
Sign up to see the contentIt's free!
Access to all documents
Improve your grades
Join milions of students
By signing up you accept Terms of Service and Privacy Policy
Animal and Plant Cells, and the Respiratory System
This document covers essential topics in Year 8 science revision, including animal and plant cells and the respiratory system. It provides detailed information, diagrams, and exercises to help students understand these fundamental concepts.
Key points:
- Comparison of animal and plant cell structures
- Components of the human respiratory system
- Process of inhalation and exhalation
- Functions of different parts of the respiratory system
We thought you’d never ask...
What is the Knowunity AI companion?
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.
Where can I download the Knowunity app?
You can download the app from Google Play Store and Apple App Store.
Is Knowunity really free of charge?
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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Can't find what you're looking for? Explore other subjects.
Students love us — and so will you.
4.9/5
App Store
4.8/5
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