Edexcel IGCSE Biology 3.4 Pollen Tube Growth and Fertilisation 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

(j) Co-ordination and response

3 Reproduction and inheritance

(a) Reproduction

3.1 Sexual and asexual reproduction

3.2 Fertilisation and embryo development

3.3 Flower structure and pollination

3.4 Pollen tube growth and fertilisation

3.5 Seed germination practical

3.6 Food reserves in germinating seeds

3.7 Asexual reproduction in plants

3.8 Asexual reproduction practical

3.9 Oestrogen and progesterone

3.10B Mitosis and diploid cells

3.11 Placenta and embryo nutrition

3.12 The developing embryo is protected by amniotic fluid

3.13 Oestrogen and testosterone roles

(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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