Open the App

Subjects

BiologyBiology173 views·Updated 16 Aug 2026·7 pages

A-level biology - chapter 5 - plasma membranes

A-level biology, OCR, plasma membranes and the types of transport across them - diffusion, osmosis, active transport

1
of 7
A-level biology - chapter 5 - plasma membranes – page 1
2
of 7
A-level biology - chapter 5 - plasma membranes – page 2
3
of 7
A-level biology - chapter 5 - plasma membranes – page 3
4
of 7
A-level biology - chapter 5 - plasma membranes – page 4
5
of 7
A-level biology - chapter 5 - plasma membranes – page 5
6
of 7
A-level biology - chapter 5 - plasma membranes – page 6
7
of 7
A-level biology - chapter 5 - plasma membranes – page 7

We thought you’d never ask...

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.

Similar content

Most popular content: Diffusion and Osmosis

9
BiologyBiology

Understanding Osmosis

Explore the concept of osmosis, including definitions, key differences between plant and animal cells, and the effects of various solutions on cell structure. This summary includes essential diagrams and questions to enhance your understanding of water movement across membranes, crucial for biology exams.

1221,0721,387
BiologyBiology

Osmosis & Diffusion Explained

Explore the essential concepts of osmosis and diffusion in this detailed summary. Understand how water moves through partially permeable membranes, the impact of concentration gradients, and the factors affecting diffusion rates. Ideal for GCSE biology students, this resource covers key terms and learning objectives related to cell membrane transport and passive processes.

94,177197
BiologyBiology

B1 biology mindmap revision notes

covers topics such as cell biology, magnification, osmosis, stem cells and specialised cells.

1095713
BiologyBiology

Biology Transport Systems Overview

Explore key concepts of cellular and animal transport systems in this comprehensive study note. Covering essential topics such as cell membrane transport, cytoskeleton functions, and vascular systems, this resource is ideal for AQA GCSE Biology revision. Enhance your understanding of how substances move within cells and organisms, preparing you for your mocks effectively.

112903
BiologyBiology

Biology: Cells & Transport

Explore essential concepts in GCSE Biology with this comprehensive overview of cell structure, microscopy techniques, and transport mechanisms including diffusion, osmosis, and active transport. Ideal for students preparing for exams, this resource includes diagrams and key definitions to enhance understanding.

1178310
BiologyBiology

Cell Transport Mechanisms

Explore the essential processes of diffusion, osmosis, and active transport in cells. This summary covers key concepts such as concentration gradients, the role of temperature and surface area in diffusion, and the mechanisms of cellular transport, including the function of transport proteins and the significance of cellular respiration. Ideal for students studying plant transport systems and cellular processes.

111708
BiologyBiology

Cell Transport Mechanisms

Explore the principles of diffusion and osmosis in cellular transport. This summary covers key concepts such as concentration gradients, tonicity (hypertonic, hypotonic), and the effects of osmosis on plant and animal cells. Ideal for understanding biological substance exchange and passive transport processes.

9813
BiologyBiology

AQA Biology Practical Techniques

Explore essential practical techniques for AQA GCSE Biology Paper 1, including microscopy, osmosis experiments, and biochemical tests. This summary covers step-by-step procedures, key concepts like concentration gradients, and the effects of pH on enzyme activity. Ideal for exam preparation and understanding core practical skills.

115483
BiologyBiology

Cell Structure & Transport

Explore the key differences between animal and plant cells, focusing on cell structure and the processes of diffusion and osmosis. This summary covers essential concepts of passive transport, including the movement of particles and water across cell membranes. Ideal for revision and understanding cellular functions.

83302

Most popular content in Biology

9
BiologyBiology

A-Level Biology Year 1 Overview

Comprehensive summary of AQA A-Level Biology Year 1, covering key topics such as cellular structure, protein synthesis, immune response, gas exchange, and more. Ideal for exam preparation and understanding biological concepts. Includes detailed insights into cellular processes, biological classification, and the circulatory system.

1215,103699
BiologyBiology

AQA Biology: Key Concepts

Explore essential AQA Biology topics including Photosynthesis, Respiration, Homeostasis, Genetics, and Ecology. This comprehensive knowledge organizer covers key concepts such as energy transfer, hormonal control, and genetic variation, providing a solid foundation for your studies. Ideal for exam preparation and understanding biological processes.

109,097310
BiologyBiology

Biology P2: Evolution & Adaptation

Explore key concepts in AQA GCSE Biology P2, focusing on evolution, natural selection, genetic engineering, and adaptations in organisms. This summary covers essential topics such as DNA structure, speciation, and the impact of environmental changes on biodiversity. Ideal for exam preparation and understanding complex biological processes.

111,24122
BiologyBiology

A-Level Biology Year 2 Overview

Comprehensive study notes covering key concepts in AQA A-Level Biology Year 2, including neuronal communication, genetic modification, nutrient cycles, and hormonal control. This resource is designed to aid understanding of complex topics such as action potentials, photosynthesis, and speciation. Ideal for exam preparation and revision.

125,987306
BiologyBiology

biology paper 1

all notes

112,59438
BiologyBiology

Biology Paper 1 Overview

Comprehensive study notes covering key concepts in cellular biology, human digestion, respiration, photosynthesis, and the circulatory system. This resource includes detailed explanations of cell structures, enzyme functions, nutrient absorption, and the impact of environmental factors on biological processes. Ideal for students preparing for Biology Paper 1 exams.

1115,423389
BiologyBiology

Biology paper 1 foundation & higher

Pages from the revision guide summarised in a set of words and a brief explanation

111,44518
BiologyBiology

KS3 Biology

KS3 Biology revision document.

761968
BiologyBiology

Paper 2 chemistry mindmaps

Condesnsed aqa triple higher

958110

Most popular content

9
SociologySociology

Comprehensive Crime & Deviance Overview

Explore an extensive revision of crime and deviance topics, including theories, types of crime, and the impact of media. This resource covers key concepts such as Marxism, functionalism, gender and crime, and the influence of globalization on criminal behavior. Ideal for students seeking a thorough understanding of criminology and its various theories. Type: Full Topic Revision.

1251,7441,403
SociologySociology

Sociological Theories Overview

Comprehensive revision of key sociological theories including Functionalism, Marxism, Feminism, and Interpretivism. Explore concepts like value freedom, identity formation, and the critique of social control. Ideal for AQA A-Level Sociology students preparing for exams. This summary covers essential theories and their implications in sociology, providing a clear understanding of each perspective.

1231,584848
SociologySociology

Sociology of Families: Comprehensive Revision

Dive into an extensive overview of family dynamics, perspectives, and patterns in sociology. This resource covers key concepts such as family diversity, gender roles, marriage, and the impact of social policies on family structures. Perfect for A-Level Sociology students preparing for Paper 2.

1273,9742,306
SociologySociology

Sociology of Education Overview

Explore comprehensive A-Level Sociology notes on the education system, covering key theories, policies, and sociological perspectives. This resource includes insights on marketisation, gender roles, cultural deprivation, and educational inequalities, providing a thorough understanding of how education shapes social stratification and individual achievement. Ideal for exam preparation and in-depth study.

12103,1353,044
SociologySociology

Crime and Deviance AQA A-level sociology

AQA A-level crime and deviance topic notes

1288919
ChemistryChemistry

Chemistry paper 2

Chem paper 2 notes

1173414
BiologyBiology

A-Level Biology Year 1 Overview

Comprehensive summary of AQA A-Level Biology Year 1, covering key topics such as cellular structure, protein synthesis, immune response, gas exchange, and more. Ideal for exam preparation and understanding biological concepts. Includes detailed insights into cellular processes, biological classification, and the circulatory system.

1215,103699
BiologyBiology

AQA Biology: Key Concepts

Explore essential AQA Biology topics including Photosynthesis, Respiration, Homeostasis, Genetics, and Ecology. This comprehensive knowledge organizer covers key concepts such as energy transfer, hormonal control, and genetic variation, providing a solid foundation for your studies. Ideal for exam preparation and understanding biological processes.

109,097310
BiologyBiology

Biology P2: Evolution & Adaptation

Explore key concepts in AQA GCSE Biology P2, focusing on evolution, natural selection, genetic engineering, and adaptations in organisms. This summary covers essential topics such as DNA structure, speciation, and the impact of environmental changes on biodiversity. Ideal for exam preparation and understanding complex biological processes.

111,24122

Students love us — and so will you.

4.6/5App Store
4.7/5Google 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 SiOS 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 KlichAndroid 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.

AnnaiOS user

BiologyBiology173 views·Updated 16 Aug 2026·7 pages

A-level biology - chapter 5 - plasma membranes

A-level biology, OCR, plasma membranes and the types of transport across them - diffusion, osmosis, active transport

1
of 7
A-level biology - chapter 5 - plasma membranes – page 1

Sign up to see the content. It's free!

  • Access to all documents
  • Improve your grades
  • Join milions of students

By signing up you accept Terms of Service and Privacy Policy

2
of 7
A-level biology - chapter 5 - plasma membranes – page 2

Sign up to see the content. It's free!

  • Access to all documents
  • Improve your grades
  • Join milions of students

By signing up you accept Terms of Service and Privacy Policy

3
of 7
A-level biology - chapter 5 - plasma membranes – page 3

Sign up to see the content. It's free!

  • Access to all documents
  • Improve your grades
  • Join milions of students

By signing up you accept Terms of Service and Privacy Policy

4
of 7
A-level biology - chapter 5 - plasma membranes – page 4

Sign up to see the content. It's free!

  • Access to all documents
  • Improve your grades
  • Join milions of students

By signing up you accept Terms of Service and Privacy Policy

5
of 7
A-level biology - chapter 5 - plasma membranes – page 5

Sign up to see the content. It's free!

  • Access to all documents
  • Improve your grades
  • Join milions of students

By signing up you accept Terms of Service and Privacy Policy

6
of 7
A-level biology - chapter 5 - plasma membranes – page 6

Sign up to see the content. It's free!

  • Access to all documents
  • Improve your grades
  • Join milions of students

By signing up you accept Terms of Service and Privacy Policy

7
of 7
A-level biology - chapter 5 - plasma membranes – page 7

Sign up to see the content. It's free!

  • Access to all documents
  • Improve your grades
  • Join milions of students

By signing up you accept Terms of Service and Privacy Policy

We thought you’d never ask...

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.

Similar content

Most popular content: Diffusion and Osmosis

9
BiologyBiology

Understanding Osmosis

Explore the concept of osmosis, including definitions, key differences between plant and animal cells, and the effects of various solutions on cell structure. This summary includes essential diagrams and questions to enhance your understanding of water movement across membranes, crucial for biology exams.

1221,0721,387
BiologyBiology

Osmosis & Diffusion Explained

Explore the essential concepts of osmosis and diffusion in this detailed summary. Understand how water moves through partially permeable membranes, the impact of concentration gradients, and the factors affecting diffusion rates. Ideal for GCSE biology students, this resource covers key terms and learning objectives related to cell membrane transport and passive processes.

94,177197
BiologyBiology

B1 biology mindmap revision notes

covers topics such as cell biology, magnification, osmosis, stem cells and specialised cells.

1095713
BiologyBiology

Biology Transport Systems Overview

Explore key concepts of cellular and animal transport systems in this comprehensive study note. Covering essential topics such as cell membrane transport, cytoskeleton functions, and vascular systems, this resource is ideal for AQA GCSE Biology revision. Enhance your understanding of how substances move within cells and organisms, preparing you for your mocks effectively.

112903
BiologyBiology

Biology: Cells & Transport

Explore essential concepts in GCSE Biology with this comprehensive overview of cell structure, microscopy techniques, and transport mechanisms including diffusion, osmosis, and active transport. Ideal for students preparing for exams, this resource includes diagrams and key definitions to enhance understanding.

1178310
BiologyBiology

Cell Transport Mechanisms

Explore the essential processes of diffusion, osmosis, and active transport in cells. This summary covers key concepts such as concentration gradients, the role of temperature and surface area in diffusion, and the mechanisms of cellular transport, including the function of transport proteins and the significance of cellular respiration. Ideal for students studying plant transport systems and cellular processes.

111708
BiologyBiology

Cell Transport Mechanisms

Explore the principles of diffusion and osmosis in cellular transport. This summary covers key concepts such as concentration gradients, tonicity (hypertonic, hypotonic), and the effects of osmosis on plant and animal cells. Ideal for understanding biological substance exchange and passive transport processes.

9813
BiologyBiology

AQA Biology Practical Techniques

Explore essential practical techniques for AQA GCSE Biology Paper 1, including microscopy, osmosis experiments, and biochemical tests. This summary covers step-by-step procedures, key concepts like concentration gradients, and the effects of pH on enzyme activity. Ideal for exam preparation and understanding core practical skills.

115483
BiologyBiology

Cell Structure & Transport

Explore the key differences between animal and plant cells, focusing on cell structure and the processes of diffusion and osmosis. This summary covers essential concepts of passive transport, including the movement of particles and water across cell membranes. Ideal for revision and understanding cellular functions.

83302

Most popular content in Biology

9
BiologyBiology

A-Level Biology Year 1 Overview

Comprehensive summary of AQA A-Level Biology Year 1, covering key topics such as cellular structure, protein synthesis, immune response, gas exchange, and more. Ideal for exam preparation and understanding biological concepts. Includes detailed insights into cellular processes, biological classification, and the circulatory system.

1215,103699
BiologyBiology

AQA Biology: Key Concepts

Explore essential AQA Biology topics including Photosynthesis, Respiration, Homeostasis, Genetics, and Ecology. This comprehensive knowledge organizer covers key concepts such as energy transfer, hormonal control, and genetic variation, providing a solid foundation for your studies. Ideal for exam preparation and understanding biological processes.

109,097310
BiologyBiology

Biology P2: Evolution & Adaptation

Explore key concepts in AQA GCSE Biology P2, focusing on evolution, natural selection, genetic engineering, and adaptations in organisms. This summary covers essential topics such as DNA structure, speciation, and the impact of environmental changes on biodiversity. Ideal for exam preparation and understanding complex biological processes.

111,24122
BiologyBiology

A-Level Biology Year 2 Overview

Comprehensive study notes covering key concepts in AQA A-Level Biology Year 2, including neuronal communication, genetic modification, nutrient cycles, and hormonal control. This resource is designed to aid understanding of complex topics such as action potentials, photosynthesis, and speciation. Ideal for exam preparation and revision.

125,987306
BiologyBiology

biology paper 1

all notes

112,59438
BiologyBiology

Biology Paper 1 Overview

Comprehensive study notes covering key concepts in cellular biology, human digestion, respiration, photosynthesis, and the circulatory system. This resource includes detailed explanations of cell structures, enzyme functions, nutrient absorption, and the impact of environmental factors on biological processes. Ideal for students preparing for Biology Paper 1 exams.

1115,423389
BiologyBiology

Biology paper 1 foundation & higher

Pages from the revision guide summarised in a set of words and a brief explanation

111,44518
BiologyBiology

KS3 Biology

KS3 Biology revision document.

761968
BiologyBiology

Paper 2 chemistry mindmaps

Condesnsed aqa triple higher

958110

Most popular content

9
SociologySociology

Comprehensive Crime & Deviance Overview

Explore an extensive revision of crime and deviance topics, including theories, types of crime, and the impact of media. This resource covers key concepts such as Marxism, functionalism, gender and crime, and the influence of globalization on criminal behavior. Ideal for students seeking a thorough understanding of criminology and its various theories. Type: Full Topic Revision.

1251,7441,403
SociologySociology

Sociological Theories Overview

Comprehensive revision of key sociological theories including Functionalism, Marxism, Feminism, and Interpretivism. Explore concepts like value freedom, identity formation, and the critique of social control. Ideal for AQA A-Level Sociology students preparing for exams. This summary covers essential theories and their implications in sociology, providing a clear understanding of each perspective.

1231,584848
SociologySociology

Sociology of Families: Comprehensive Revision

Dive into an extensive overview of family dynamics, perspectives, and patterns in sociology. This resource covers key concepts such as family diversity, gender roles, marriage, and the impact of social policies on family structures. Perfect for A-Level Sociology students preparing for Paper 2.

1273,9742,306
SociologySociology

Sociology of Education Overview

Explore comprehensive A-Level Sociology notes on the education system, covering key theories, policies, and sociological perspectives. This resource includes insights on marketisation, gender roles, cultural deprivation, and educational inequalities, providing a thorough understanding of how education shapes social stratification and individual achievement. Ideal for exam preparation and in-depth study.

12103,1353,044
SociologySociology

Crime and Deviance AQA A-level sociology

AQA A-level crime and deviance topic notes

1288919
ChemistryChemistry

Chemistry paper 2

Chem paper 2 notes

1173414
BiologyBiology

A-Level Biology Year 1 Overview

Comprehensive summary of AQA A-Level Biology Year 1, covering key topics such as cellular structure, protein synthesis, immune response, gas exchange, and more. Ideal for exam preparation and understanding biological concepts. Includes detailed insights into cellular processes, biological classification, and the circulatory system.

1215,103699
BiologyBiology

AQA Biology: Key Concepts

Explore essential AQA Biology topics including Photosynthesis, Respiration, Homeostasis, Genetics, and Ecology. This comprehensive knowledge organizer covers key concepts such as energy transfer, hormonal control, and genetic variation, providing a solid foundation for your studies. Ideal for exam preparation and understanding biological processes.

109,097310
BiologyBiology

Biology P2: Evolution & Adaptation

Explore key concepts in AQA GCSE Biology P2, focusing on evolution, natural selection, genetic engineering, and adaptations in organisms. This summary covers essential topics such as DNA structure, speciation, and the impact of environmental changes on biodiversity. Ideal for exam preparation and understanding complex biological processes.

111,24122

Students love us — and so will you.

4.6/5App Store
4.7/5Google 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 SiOS 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 KlichAndroid 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.

AnnaiOS user