EduNinja

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

2.34 Respiration and ATP

2.35 ATP provides energy for cells

2.36 Peristalsis

2.37 Digestive enzymes

2.38 Anaerobic respiration in plants and in animals

2.39 Respiration products practical

(g) Gas exchange

(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)

IGCSE Biology 2.35 ATP provides energy for cells Topic Practice

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