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Curricula A-Level AQA BiologyExchange & Transport

Exchange & Transport

1

Adaptations for Gas Exchange

SA:V Ratio & Metabolic Rate

Agar Blocks Practical

Adaptation to Facilitate Exchange

Gas Exchange vs Water Loss

Adaptations of Gas Exchange Surfaces

Surface Area to Volume Ratio

2

Human Gas Exchange

Ventilation & Gas Exchange

The Alveolar Epithelium

Microscopy & Gas Exchange Surfaces

Risk Factor Data

The Human Gas Exchange System

The Effects of Lung Disease

Dissecting the Gas Exchange System

Correlations & Causal Relationships

Investigating Gas Exchange

Pollution & Smoking Data

3

Digestion & Absorption

Investigating Digestive Enzymes

Mechanisms of Absorption

Enzymes in Digestion

Modelling Absorption

4

Mass Transport in Animals

The Role of Haemoglobin

Haemoglobin Structure

Adaptations in Haemoglobin

The Bohr Effect

The Oxyhaemoglobin Dissociation Curve

5

The Circulatory System in Animals

The Cardiac Cycle

Investigating Heart Rate

Required Practical: Dissecting Mass Transport Systems

The Human Heart

Capillaries & Tissue Fluid

Cardiovascular Disease Data

Mammalian Circulation

6

Mass Transport in Plants

The Mass Flow Hypothesis

Potometer Practical

Movement in the Phloem

Evaluating the Mass Flow Hypothesis

Tracer & Ringing Experiments