Page 43 - Ranger SPM 2022 Biology
P. 43
Biology SPM SPM Model Paper
4. Figure 4.1 shows a relationship Explain why an AIDS patient
between blood circulation system and does not have antibodies to fight
lymphatic system of humans. diseases.
[2 marks]
happens if fluid Z fails to return to Bhd. All Rights Reserved.
5. Figure 5 shows water movement in a
plant.
Fluid Z
Vessel X
Vessel Y
Process X
Figure 4.1
(a) Name vessels X and Y.
[2 marks]
(b) Explain how fluid Z is formed.
[2 marks] Figure 5
(c) Fluid Z has to be returned to the (a) Based on Figure 5, identify
blood circulation system. 85% of process X.
fluid Z enters vessel X and 15% [1 mark]
of fluid Z enters vessel Y. What
Penerbitan Pelangi Sdn
(b) Explain how process X helps
both transport systems? plant to obtain water from soil.
[1 mark] [2 marks]
(d) Figure 4.2 shows HIV virus. (c) (i) Name the main type of plant
HIV infection causes Acquired cells involved in absorption
Immunodeficiency Syndrome of soil water.
(AIDS). [1 mark]
(ii) Explain the adaptation of
the cell structure named in
5(c)(i) that enable it to
function effectively.
[2 marks]
(d) A gardener planted a hibiscus
tree by using soil obtained from
a mangrove swamp. After a few
days, the hibiscus tree wilted and
Figure 4.2 died. Explain why the situation
took place.
[2 marks]
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Model Paper.indd 389 3/29/22 5:22 PM
