2004 - JAMB Biology Past Questions and Answers - page 2

11
In the internal structure of plants, a wide pith in the centre is common to
A
dicot stems and monocot stems
B
dicot stem and monocot roots
C
dicot roots and monocot roots
D
dicot roots and monocot stems
correct option: b
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12
The gall bladder of mammal has a duct connected to the
A
liver
B
duodenum
C
small intestine
D
pancreas
correct option: a
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13
All living cells require water because it
A
is a medium for all metabolic reactions
B
is a medium that neutralizes the acids in cells
C
is the main source of energy for the cell
D
prevents the development of dieseases in cells
correct option: a
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14
The breakdown of fats and oils into simpler absorbable compounds is catalyzed by the group of enzymes called
A
lipases
B
hydrolases
C
amylases
D
peptidases
correct option: a
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15
Yam is used in this set-up because it
A
is a permeable to the salt solution
B
is a plant material
C
acts as a storage organ
D
acts as a semi-permeable membrane
correct option: d
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16
Which of the following results is to be expected if the set up is left for several hours?
A
decrease in the size of the yam
B
movement of the salt solution into the water
C
decrease in the volume of water inside the yam
D
movement of water from the salt solution into the yam
correct option: c
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17
The surface of an alveolus in a mammal is well supplied with tiny blood vessels known as
A
arterioles
B
venules
C
arteries
D
capillaries
correct option: d
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18
The anaerobic fermentation of a glucose molecule yields
A
38 ATP molecules
B
2 ATP molecules and alcohol
C
pyruvic acid and alcohol
D
water and carbon (IV) oxide
correct option: b
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19
The opening of the stoma is controlled by the
A
presence of a pore
B
increase in solute concentration in the guard cells
C
presence of guard cells
D
decrease in solute concentration in the guard cells
correct option: b
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20
The sweat gland is the structure labelled
A
I
B
II
C
III
D
IV
correct option: d
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