Edexcel IGCSE Biology 2 45b Leaf Gas Exchange Practical Topic Practice

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Pearson Edexcel International GCSE Biology

1 The nature and variety of living organisms

(a) Characteristics of living organisms

(b) Variety of living organisms

2 Structure and functions in living organisms

(a) Level of organisation

(b) Cell structure

(c) Biological molecules

(d) Movement of substances into and out of cells

(f) Respiration

(g) Gas exchange

2.41B Muscle contraction and protein synthesis

2.42B Anaerobic respiration

2.43B Anaerobic respiration in plants and yeast

2.44B Respiration practical

2.45B Leaf gas exchange practical

2.46 Thorax structure

2.47 Ventilation muscles

2.48 Alveoli adaptations

2.49 Ventilation role

2.50 Ventilation practical

(j) Co-ordination and response

3 Reproduction and inheritance

(a) Reproduction

(b) Inheritance

4 Ecology and the environment

(a) The organism in the environment

(b) Feeding relationships

(c) Cycles within ecosystems

(d) Human influences on the environment

5 Use of biological resources

(a) Food production

(b) Selective breeding

(c) Genetic modification (genetic engineering)

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