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Topic 3: Exchange of Substances

This topic is included in AS and A Level Papers for AQA Biology. Resources to support this topic can be found below.

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Animal Exchanges - Factsheets

A Level Biology

377. Coronary Heart Diseases: New Research

This Biology Factsheet:Explains the term coronary heart disease.Explains how the disease...

A Level Biology

375. The Lymphatic System

This Biology Factsheet: Explains the need for a circulatory system.Describes the organisation of...

A Level Biology

360. The Insect Tracheal System

This Biology Factsheet:• Describes the role of gas exchange systems.• Outlines the key differences...

A Level Biology

310. Different Types of Haemoglobin

This Biology Factsheet summarises: • That a haemoglobin molecule consists of subunits, each made...

A Level Biology

309. Carbon Dioxide in the Body

This Biology Factsheet will look at: • The ways in which carbon dioxide is transported to the...

A Level Biology

290. Answering Exam Questions: Blood Groups and Transfusions

This Biology Factsheet: • Summarises the basis of blood transfusions. • Summarises the ABO and...

A Level Biology

272. Artificial Hearts and Heart Transplants

This Biology Factsheet: • Describes how artificial hearts work. • Explains how rejection of an...

A Level Biology

234. Electrocardiograms (ECGs)

This Biology Factsheet: • Summarises the electrical activity of the cardiac cycle. • Describes how...

A Level Biology

171. Answering Exam Questions: The Formation and Drainage of Lymph

This Biology Factsheet will aim to redress some of these deficiencies. In many answers it is...

A Level Biology

165. Surface Area and Volume

This Biology Factsheet will help students to understand the importance of the concept, and spot it...

A Level Biology

139. Answering Exam Questions on the Heart

This Biology Factsheet will equip students with what they need in order to successfully answer exam...

A Level Biology

89. Tissue Fluid

This Biology Factsheet summarises: • The nature of tissue fluid and lymph. • The functions of...

A Level Biology

35. Structure and Function of the Mammalian Heart

This Biology Factsheet summarises: • The structure of the heart and the histology of cardiac...

A Level Biology

26. Gas Exchange in Animals

This Biology Factsheet: • Identifies the four factors that organisms need for gas exchange to...

A Level Biology

9. Oxygen Dissociation Curves

This Biology Factsheet summarises: • The mechanisms of oxygen and carbon dioxide transport in...

A Level Biology

7. Comparing Transport in Plants and Animals

This Biology Factsheet:• Describes what is meant by the transport mechanism.• Explores the...

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Animal Exchanges - PowerPoints

A Level Biology

Blood and Blood Vessels - A-Level PowerPoint

This is an A-Level Biology PowerPoint Presentation on Blood and Blood Vessels.

A Level Biology

Digestion - A-Level PowerPoint

This is an A-Level Biology PowerPoint Presentation on Digestion.

A Level Biology

Heart Structure and Function - A-Level PowerPoint

This is an A-Level Biology PowerPoint Presentation on Heart Structure and Function.

A Level Biology

Lung Disease - A-Level PowerPoint

This is an A-Level Biology PowerPoint Presentation on Lung Disease.

A Level Biology

Lung Structure and Function - A-Level PowerPoint

This is an A-Level Biology PowerPoint Presentation on Lung Structure and Function.

A Level Biology

Obesity and Heart Disease - A-Level PowerPoint

This is an A-Level Biology PowerPoint Presentation on Obesity and Heart Disease.

A Level Biology

The Effects of Smoking - A-Level PowerPoint

This is an A-Level Biology PowerPoint Presentation on The Effects of Smoking.

A Level Biology

Effects of Exercise – A-Level Exam Doctor PowerPoint

This is an A-Level Biology Exam Doctor PowerPoint Presentation on the Effects of Exercise. The...

A Level Biology

Gas Exchange – A-Level Exam Doctor PowerPoint

This is an A-Level Biology Exam Doctor PowerPoint Presentation on Gas Exchange. The Exam Doctor...

A Level Biology

Transport in Animals – A-Level Exam Doctor PowerPoint

This is an A-Level Biology Exam Doctor PowerPoint Presentation on Transport in Animals. The Exam...

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Animal Exchanges - Questions and Answers

A Level Biology

Effects of Exercise Questions - A-Level

These are practice examination questions on the Effects of Exercise for A-Level Biology.

A Level Biology

Effects of Exercise Answers - A-Level

These are the answers to the Effects of Exercise practice questions for A-Level Biology.

A Level Biology

Transport in Animals Questions - A-Level

These are practice examination questions on Transport in Animals for A-Level Biology.

A Level Biology

Transport in Animals Answers - A-Level

These are the answers to the Transport in Animals practice questions for A-Level Biology.

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Plant Exchanges - Factsheets

A Level Biology

365. Cohesion Tension Hypothesis

This Biology Factsheet: • Outlines the pathway of water through a plant. • Describes the chemical...

A Level Biology

313. Adaptations to Water Availability

This Biology Factsheet will look at: • How water is used in plants. • Hydrophytes and how plants...

A Level Biology

146. Tracheid's, Vessels and Sieve Tubes

This Biology Factsheet summarises: • The structure of phloem tissue. • Radioactive tracers. • The...

A Level Biology

132. Phloem

This Biology Factsheet describes the structure and function of phloem and concentrates on typical...

A Level Biology

108. Water Movement across the Root

This Biology Factsheet summarises: • Tissue distribution in a root. • The symplast pathway. • The...

A Level Biology

82. Transport in Flowering Plants

This Biology Factsheet summarises: • The need for transport systems in flowering plants. • The...

A Level Biology

81. Gas Exchange in Plants

This Biology Factsheet summarises: • Fick’s Law and leaf structure. • Stomata and stomatal...

A Level Biology

64. Transpiration

This Biology Factsheet summarises: • How water is transported up stems. • The mechanism of...

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Plant Exchanges - PowerPoints

A Level Biology

Gas Exchange Surfaces - A-Level PowerPoint

This is an A-Level Biology PowerPoint Presentation on Gas Exchange Surfaces.

A Level Biology

Root Structure and Transport - A-Level PowerPoint

This is an A-Level Biology PowerPoint Presentation on Root Structure and Transport.

A Level Biology

Transport in Plants – A-Level Exam Doctor PowerPoint

This is an A-Level Biology Exam Doctor PowerPoint Presentation on Transport in Plants. The Exam...

A Level Biology

Xerophytes – A-Level Exam Doctor PowerPoint

This is an A-Level Biology Exam Doctor PowerPoint Presentation on Xerophytes. The Exam Doctor...

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Plant Exchanges - Questions and Answers

A Level Biology

Gas Exchange Questions - A-Level

These are practice examination questions on Gas Exchange for A-Level Biology.

A Level Biology

Gas Exchange Answers - A-Level

These are the answers to the Gas Exchange practice questions for A-Level Biology.

A Level Biology

Transport in Plants Questions - A-Level

These are practice examination questions on Transport in Plants for A-Level Biology.

A Level Biology

Transport in Plants Answers - A-Level

These are the answers to the Transport in Plants practice questions for A-Level Biology.

A Level Biology

Xerophytes, Hydrophytes and Cultivated Plants Questions - A-Level

These are practice examination questions on Xerophytes, Hydrophytes and Cultivated Plants for...

A Level Biology

Xerophytes, Hydrophytes, and Cultivated Plants Answers - A-Level

These are the answers to the Xerophytes, Hydrophytes, and Cultivated Plants practice questions for...

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