Edexcel IGCSE Biology 2.67 Heart Structure 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

2.51 Diffusion in unicellular organisms

2.52 Transport systems

2.53 Water and mineral uptake

2.54 Transpiration

2.55B Transpiration and transpiration stream

2.56B Transpiration rate factors

2.57B Xylem structure and function

2.58B Transpiration practical

2.59 Phloem structure and function

2.60 Blood composition

2.61 Red blood cell adaptations

2.62 Immune response to disease

2.63B Plasma functions

2.64B Blood clotting

2.65 The heart and how it functions

2.66 Heart rate changes

2.67 Heart structure

2.68 The structure of arteries

2.69 Circulatory system structure

(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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