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Combiend Science 1SC0/2BH November 2021 | Edexcel GCSE Past Papers With Mark Scheme

1. Nervous System and Reflexes | Pathway of impulses in a reflex arc, synaptic transmission between neurons, function of reflexes in rapid responses, and investigation of reaction times using a digital test.

2. Health and Disease | Differences between communicable and non-communicable diseases, factors affecting tuberculosis transmission, prevention methods, and reasons why AIDS patients are more susceptible to TB.

3. Cell Division and Mitosis | Stages of mitosis in plant cells, cellular processes in prophase, importance of mitosis in growth and repair, and calculating cell magnification under a microscope.

4. Enzymes and Biological Reactions | Investigation of chymosin activity in milk curdling, effect of temperature on enzyme efficiency, expected enzyme activity at high temperatures, and experimental controls in enzyme studies.

5. Reproductive System and Fertilization | Structural adaptations of sperm cells for fertilization, genetic inheritance of haemochromatosis, Punnett square interpretation, and function of hormones in reproductive cycles.

6. Osmosis and Water Balance | Investigation of mass changes in eggs placed in different salt solutions, calculation of percentage change, movement of water by osmosis, and evaluation of experiment results.
Edexcel GCSE Combiend Science (1SC0) Nov 2021

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Classification: Edexcel Paper 4
Page count: 20
Viewed: 5
Last update: a month ago
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