CSEC Biology · May/June 2021 · Paper 2 · Question 1(f)
Describe the test that could be used to determine if a green leaf has stored starch.
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Practise this questionOther parts of this question
- 1(a)Name the two raw materials and state the two conditions necessary for photosynthesis.[4 marks]
- 1(b)(i)On the grid provided on page 5, make a drawing of the leaf that is twice the size of Figure 1.[3 marks]
- 1(b)(ii)On the drawing made on page 5, label each of the specified parts: apex, lamina, midrib, petiole.[3 marks]
- 1(c)(i)Suggest one way in which the leaf is adapted for gaseous exchange.[1 mark]
- 1(c)(ii)Suggest one way in which the leaf is adapted for preventing excess water loss.[1 mark]
- 1(d)Suggest three reasons why there is still a need for green plants to store food even though they produce food by photosynthesis.[3 marks]
- 1(e)Suggest three reasons why glucose, the initial carbohydrate product of photosynthesis, is not stored in green leaves.[3 marks]
- 1(g)Explain two ways in which the human digestive system is adapted for the mechanical digestion of food.[4 marks]
More practice: the rest of this paper · more Nutrition in Living Organisms questions · all CSEC Biology past papers