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SECTION A
Answer ALL questions in this section. Write your answers in the spaces provided in this
answer booklet.
1.
(a) (i) In the space below make an annotated schematic drawing of a chloroplast.
[ 4 marks]
(ii) Identify and describe the TWO parts of the chloroplast that…

Page 3

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Page 4

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-3-
(b) Figure 1 is a diagram of the nitrogen cycle.
Gaseous nitrogen in atmosphere
B
Figure 1. Nitrogen cycle
A
(i) Identify the processes in Figure 1represented by the letters A, B, C, D, E and F.
A
B
C
D
E
F
[ 3 marks]
02207020lCAPE/20 10
GO…

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Page 6

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(ii) Describe TWO NATURAL way _~t:;:t:~C:::::J::::'c-- 0 tfrom soil ecosystems.
[ 2 marks]
(iii) Describe TWO human activities which impact the nitrogen cy Ie.
02207020/CAPE120 10
[ 2 marks]
Total 15 marks
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Page 8

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~ 2 hows apparatus that was used to investigate the distribution of stomata on the pper and lower part,s
of a leaf.
I+---------Retort stand
Leafy shoot
-+-------++--------- Syringe containing water for pushing air
Rubber bung-----!


r
back Graduated to right-hand capillary end tube
of capillary tube
Water
/ Air
Conical…

Page 9

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Page 10

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-6-
(iii) Suggest an appropriate control for the experiment.
[1 mark]
(b) Identify THREE factors that affect the closing and opening of stomata, and explain how
these factors function.
[3 marks]
(c) Figure 3 shows an ··
electron ··· ...·
micrograph "
· '1




·
· of a plant structure…

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Pages in this set

Page 1

Preview of page 1

Page 2

Preview of page 2
-2 -
SECTION A
Answer ALL questions in this section. Write your answers in the spaces provided in this
answer booklet.
1.
(a) (i) In the space below make an annotated schematic drawing of a chloroplast.
[ 4 marks]
(ii) Identify and describe the TWO parts of the chloroplast that…

Page 3

Preview of page 3

Page 4

Preview of page 4
-3-
(b) Figure 1 is a diagram of the nitrogen cycle.
Gaseous nitrogen in atmosphere
B
Figure 1. Nitrogen cycle
A
(i) Identify the processes in Figure 1represented by the letters A, B, C, D, E and F.
A
B
C
D
E
F
[ 3 marks]
02207020lCAPE/20 10
GO…

Page 5

Preview of page 5

Page 6

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(ii) Describe TWO NATURAL way _~t:;:t:~C:::::J::::'c-- 0 tfrom soil ecosystems.
[ 2 marks]
(iii) Describe TWO human activities which impact the nitrogen cy Ie.
02207020/CAPE120 10
[ 2 marks]
Total 15 marks
GO ON TO THE NEXT PAGE

Page 7

Preview of page 7

Page 8

Preview of page 8
~ 2 hows apparatus that was used to investigate the distribution of stomata on the pper and lower part,s
of a leaf.
I+---------Retort stand
Leafy shoot
-+-------++--------- Syringe containing water for pushing air
Rubber bung-----!


r
back Graduated to right-hand capillary end tube
of capillary tube
Water
/ Air
Conical…

Page 9

Preview of page 9

Page 10

Preview of page 10
-6-
(iii) Suggest an appropriate control for the experiment.
[1 mark]
(b) Identify THREE factors that affect the closing and opening of stomata, and explain how
these factors function.
[3 marks]
(c) Figure 3 shows an ··
electron ··· ...·
micrograph "
· '1




·
· of a plant structure…

Comments

No comments have yet been made