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02207020/CAPE/SPEC/KMS 2017
BIOLOGY
UNIT 1 – PAPER 02
KEY AND MARK SCHEME

Question 2 Specific Objectives: 2.1, 2.3, 3.1, 3.3

(a) (i)

 Diagram representative – 1 mark
 Acceptable proportions – 1 mark
Any three correct labels – 1 mark each
[5 marks]

(ii) Translocation in plants

1. Phloem loading at source
2. Movement due to pressure gradient
3. Unloading at sink

For each point with full explanation – 2 marks [6 marks]
(Partial explanation – 1 mark)