2002 - WAEC Biology Past Questions and Answers - page 2
11
Which of the following will ease the friction between the ends of bones in a movable joint?
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Diffusion is most effective in living organisms, when the surface area is
A
large and the thickness is also large
B
small while the thickness is large
C
large while the thickness is small
D
the same as its thickness.
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The function of the red blood cells is to
A
engulf invading bacteria
B
aid in protein formation
C
transport oxygen to the cells
D
control blood glucose level
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Which of the following is used to measure the rate of water uptake in plants?
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Which of the following does not occur during inhalation in mammals?
B
Diaphragm contracts and becomes dome shaped
C
Inter-coastal muscle contracts
D
Volume of the thoracic cavity increases.
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The oxygen released during photosynthesis is obtained
A
from the catalytic splitting of carbon-dioxide in plant tissues
B
from the breakdown of glucose molecules in cells
C
during the photolysis of water using energy trapped in chlorophyll
D
by the excretion of excess oxygen in plant tissues
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In which of the following processes in mammals is liquid passed from blood capillaries to Bowman‘s capsule?
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Adrenalin is considered as a hormone for “fright and flight” because it
A
controls the fluid content of the body
B
is used in protein metabolism
C
plays a role in the pH balance of the body fluids
D
prepares the body for action.
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Which of the following organs in humans is responsible for the removal of excess water?
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In humans, which of the following pairs of hormones correspond to male and female respectively?
B
Progesterone and testosterone
C
Testosterone and oestrogen
D
Adrenalin and progesterone
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