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2 Jan 2026
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Cell Production: How New Cells Are Formed
Molly Hutton
@mollyhutton
1 / 10
Course Overview
You're diving into N5 Biology Unit 2: Producing New Cells - one of the most important topics you'll study this year. This unit sits within the broader "Multicellular Organisms" section, which explores how complex life forms like humans actually work.
The N5 Biology course covers three main areas: Cell Biology, Multicellular Organisms, and Life on Earth. Think of these as building blocks - you start with understanding individual cells, then see how they work together in complex organisms, and finally explore life's diversity on our planet.
Quick Tip: This topic directly connects to how your body works every single day, making it highly relevant for understanding growth, healing, and development.
Unit Structure
Unit 2: Multicellular Organisms covers seven key areas, but don't worry - they all connect to help you understand how complex life works. You'll start with producing new cells, then explore how organisms control and communicate, reproduce, inherit traits, and transport materials.
The beauty of this unit is how each topic builds on the previous one. Once you understand how cells divide and specialise, you'll easily grasp how they form tissues, organs, and entire body systems.
Remember: These aren't separate topics to memorise - they're all part of one big story about how multicellular life functions and thrives.
Key Learning Areas
The producing new cells section focuses on three main concepts you absolutely need to master. First, you'll learn the sequence of events in mitosis and understand key terms like chromatids, equator, and spindle fibres.
Second, you'll discover why mitosis matters - it's responsible for growth, repairing damaged tissues, and replacing dead cells whilst maintaining the correct number of chromosomes. Third, you'll explore stem cells and how they can become different cell types.
You'll also learn about cell specialisation and the hierarchy from cells to tissues to organs to systems. Don't stress about memorising phase names - the examiners won't ask for those specific details.
Exam Focus: Understanding the process and purpose of mitosis is more important than memorising technical names of each phase.
Chromosome Basics
Before diving into mitosis, you need to understand what chromosomes actually are. Think of them as instruction manuals for your cells - they're made of DNA wrapped around proteins, with each chromosome having two arms called chromatids joined at a central point called the centromere.
Most of your cells are diploid, meaning they contain two matching sets of chromosomes (one from each parent). Only gametes (sex cells like sperm and eggs) are haploid with just one set.
When cells prepare to divide, they must replicate their DNA first. This creates identical copies that stay connected at the centromere, forming the familiar X-shaped structure you see in diagrams.
Visual Tip: Picture chromosomes like a zipper - the centromere is the slider holding two identical sides (chromatids) together.
The Mitosis Process
Mitosis is your body's photocopying system - it creates two identical daughter cells from one parent cell, each with exactly the same genetic information. This precision is crucial because losing genetic information could be disastrous for your body.
The process follows a specific sequence involving spindle fibres (think of them as cellular ropes) that help move chromosomes around. These fibres attach to chromosomes and pull them to the cell's equator (the middle line) before separating the chromatids.
The end result? Two new cells that are genetically identical to the original, ready to grow, repair damage, or replace worn-out cells. Without mitosis, you couldn't heal cuts, grow taller, or replace the millions of cells you lose daily.
Real-Life Connection: Every time you get a paper cut and it heals, that's mitosis in action, creating new skin cells to patch you up perfectly.
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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.
David K
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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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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
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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.
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
Cell Production: How New Cells Are Formed
Molly Hutton
@mollyhutton
Ever wondered how your body grows and heals cuts? It's all thanks to a process called mitosis - your body's amazing way of creating identical new cells. This fundamental process keeps you alive by replacing damaged cells and helping you... Show more
Course Overview
You're diving into N5 Biology Unit 2: Producing New Cells - one of the most important topics you'll study this year. This unit sits within the broader "Multicellular Organisms" section, which explores how complex life forms like humans actually work.
The N5 Biology course covers three main areas: Cell Biology, Multicellular Organisms, and Life on Earth. Think of these as building blocks - you start with understanding individual cells, then see how they work together in complex organisms, and finally explore life's diversity on our planet.
Quick Tip: This topic directly connects to how your body works every single day, making it highly relevant for understanding growth, healing, and development.
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Unit Structure
Unit 2: Multicellular Organisms covers seven key areas, but don't worry - they all connect to help you understand how complex life works. You'll start with producing new cells, then explore how organisms control and communicate, reproduce, inherit traits, and transport materials.
The beauty of this unit is how each topic builds on the previous one. Once you understand how cells divide and specialise, you'll easily grasp how they form tissues, organs, and entire body systems.
Remember: These aren't separate topics to memorise - they're all part of one big story about how multicellular life functions and thrives.
Sign up to see the contentIt's free!
Access to all documents
Improve your grades
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By signing up you accept Terms of Service and Privacy Policy
Key Learning Areas
The producing new cells section focuses on three main concepts you absolutely need to master. First, you'll learn the sequence of events in mitosis and understand key terms like chromatids, equator, and spindle fibres.
Second, you'll discover why mitosis matters - it's responsible for growth, repairing damaged tissues, and replacing dead cells whilst maintaining the correct number of chromosomes. Third, you'll explore stem cells and how they can become different cell types.
You'll also learn about cell specialisation and the hierarchy from cells to tissues to organs to systems. Don't stress about memorising phase names - the examiners won't ask for those specific details.
Exam Focus: Understanding the process and purpose of mitosis is more important than memorising technical names of each phase.
Sign up to see the contentIt's free!
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By signing up you accept Terms of Service and Privacy Policy
Chromosome Basics
Before diving into mitosis, you need to understand what chromosomes actually are. Think of them as instruction manuals for your cells - they're made of DNA wrapped around proteins, with each chromosome having two arms called chromatids joined at a central point called the centromere.
Most of your cells are diploid, meaning they contain two matching sets of chromosomes (one from each parent). Only gametes (sex cells like sperm and eggs) are haploid with just one set.
When cells prepare to divide, they must replicate their DNA first. This creates identical copies that stay connected at the centromere, forming the familiar X-shaped structure you see in diagrams.
Visual Tip: Picture chromosomes like a zipper - the centromere is the slider holding two identical sides (chromatids) together.
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The Mitosis Process
Mitosis is your body's photocopying system - it creates two identical daughter cells from one parent cell, each with exactly the same genetic information. This precision is crucial because losing genetic information could be disastrous for your body.
The process follows a specific sequence involving spindle fibres (think of them as cellular ropes) that help move chromosomes around. These fibres attach to chromosomes and pull them to the cell's equator (the middle line) before separating the chromatids.
The end result? Two new cells that are genetically identical to the original, ready to grow, repair damage, or replace worn-out cells. Without mitosis, you couldn't heal cuts, grow taller, or replace the millions of cells you lose daily.
Real-Life Connection: Every time you get a paper cut and it heals, that's mitosis in action, creating new skin cells to patch you up perfectly.
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Sign up to see the contentIt's free!
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Sign up to see the contentIt's free!
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Sign up to see the contentIt's free!
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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
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4.8/5
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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