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TEST CODE 02207020

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FORM TP 2007167 V MAY/JUNE 2007
CARIBBEAN EXAMINATIONS COUNCIL
ADVANCED PROFICIENCY EXAMINATION
BIOLOGY
UNIT 2 PAPER 02
I 2; hours
Candidates are advised to use the first 15 minutes for reading through this paper carefully.
READ THE FOLLOWING INSTRUCTIONS CAREFULLY.
1. This paper consists of NINE questions.
2. Section A…

Page 3

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-2

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SECTION A
must attempt ALL THREE questions in this section. You should NOT spend more than linutes on this section.
Figure 1 is an illustration of the apparatus used to measure the rate of photosynthesis of a water plant, Elodea, over a known
period of time.
Barrel of syringe Plastic…

Page 5

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(b) The graph in Figure 2 shows the results of an experiment in which a plant was exposed to light at varying intensities and at

Page 6

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different concentrations of carbon dioxide. The rate of photosynthesis was measured as the volume of oxygen per unit time.
, Low Light intensity/ arbitary units
Figure 2.
(i) Explain the shape of Curve A.
[ 2 marks]
(ii) Compare Curves A and B and account for the observed differences.
[…

Page 7

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(a) Figure 3 (a) is a longitudinal section of part of the wall of the heart, as seen on a

Page 8

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microscope slide. Figure 3 (b) is a diagram of the structure of the heart.
Figure 3 (b)
Figure s (a)
Adapted from M. S. H. Difoire, Atlas of Normal Histology, Lea and Febiger, 1989, p 91.
(i) By means of a plan drawing (without drawing actual cells), draw in outline…

Page 9

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(ii) By means of a ruled square or rectangle, indicate on Figure 3 (b), the location of the drawing you provided in (a) (i). [ l mark ]

Page 10

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(b) On the drawing of Figure 3 (a), use labels to identify EACH of the following:
(i) The identity of the structures marked A, B, C, D
A
(il) The areas labelled E and F
E
F
[ 3 marks]
(c) State the width of the wall at G as…

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Pages in this set

Page 1

Preview of page 1
TEST CODE 02207020

Page 2

Preview of page 2
FORM TP 2007167 V MAY/JUNE 2007
CARIBBEAN EXAMINATIONS COUNCIL
ADVANCED PROFICIENCY EXAMINATION
BIOLOGY
UNIT 2 PAPER 02
I 2; hours
Candidates are advised to use the first 15 minutes for reading through this paper carefully.
READ THE FOLLOWING INSTRUCTIONS CAREFULLY.
1. This paper consists of NINE questions.
2. Section A…

Page 3

Preview of page 3
-2

Page 4

Preview of page 4
SECTION A
must attempt ALL THREE questions in this section. You should NOT spend more than linutes on this section.
Figure 1 is an illustration of the apparatus used to measure the rate of photosynthesis of a water plant, Elodea, over a known
period of time.
Barrel of syringe Plastic…

Page 5

Preview of page 5
(b) The graph in Figure 2 shows the results of an experiment in which a plant was exposed to light at varying intensities and at

Page 6

Preview of page 6
different concentrations of carbon dioxide. The rate of photosynthesis was measured as the volume of oxygen per unit time.
, Low Light intensity/ arbitary units
Figure 2.
(i) Explain the shape of Curve A.
[ 2 marks]
(ii) Compare Curves A and B and account for the observed differences.
[…

Page 7

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(a) Figure 3 (a) is a longitudinal section of part of the wall of the heart, as seen on a

Page 8

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microscope slide. Figure 3 (b) is a diagram of the structure of the heart.
Figure 3 (b)
Figure s (a)
Adapted from M. S. H. Difoire, Atlas of Normal Histology, Lea and Febiger, 1989, p 91.
(i) By means of a plan drawing (without drawing actual cells), draw in outline…

Page 9

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(ii) By means of a ruled square or rectangle, indicate on Figure 3 (b), the location of the drawing you provided in (a) (i). [ l mark ]

Page 10

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(b) On the drawing of Figure 3 (a), use labels to identify EACH of the following:
(i) The identity of the structures marked A, B, C, D
A
(il) The areas labelled E and F
E
F
[ 3 marks]
(c) State the width of the wall at G as…

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No comments have yet been made