Paper 3 Q2

 Form 4:
1 The movement of substances across a semi permeable membrane.
2 The effects of osmosis and the permeability of the plasma membrane of an egg.
5 The effects of hypotonic, hypertonic and isotonic solutions on mustard green.
7 The effects the temperature on salivary amylase activity.
8 The effect of pH on the activity of pepsin.
9 The effects of substrate concentration on the activity of salivary amylase.
10 The effects of enzyme concentration on the activity of salivary amylase.
11 The energy value in food samples.
12 The amount of vitamin C in the fruit juices.
13 The movement of substance through the visking tubing.
14 The effect of light intensity on the rate of photosynthesis.
15 The process of aerobic respiration.
16 The process of anaerobic respiration in yeast.
17 Model of human lungs to explain the breathing mechanism in humans.
19 The differences between inhaled and exhaled air in terms of oxygen and carbon dioxide contents.
20 The contents of oxygen and carbon dioxide in exhaled air.
21 The effect of vigorous exercise on the breathing and heartbeat rates.
22 The effects of cigarette smoke on lungs.
23 The intraspecific and interspecific competition in plants growth of maize and rice plants.
24 The distribution of plants using the quadrate sampling technique.
25 The population size of garden snails using capture, mark, release and recapture technique.
26 The effect of temperature on the activity of yeast.
27 The effect of pH on the activity of yeast
28 The effects of light intensity on the activity of yeast.
29 The effects of nutients on the activity of yeast.
31 The level of pollution in several different sources of water

Form 5
32 the effect of air movement on the rate of transpiration by using a potometer.
33 The effect of temperature on the rate of transpiration.
34 The effect of light intensity on the rate of transpiration.
35 The effect of relative humidity on the rate of transpiration.
37 The effect of different quantities of water intake on urine output.
38 The growth of maize.
40 The effects of environment factors on variation in plants.
41 color camourflage can help in the survival of a species.
SPM 2008
SPM 2009
SPM 2010
SPM 2011

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