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Biology 2002 WAEC Past Questions

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16
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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17
In which of the following processes in mammals is liquid passed from blood capillaries to Bowman‘s capsule?
  • A. Filtration
  • B. Diffusion
  • C. Osmosis
  • D. Reabsorption
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18
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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19
Which of the following organs in humans is responsible for the removal of excess water?
  • A. The spleen
  • B. The kidney
  • C. Large intestine
  • D. Small intestine
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20
In humans, which of the following pairs of hormones correspond to male and female respectively?
  • A. Oestroqen and adrenalin
  • B. Progesterone and testosterone
  • C. Testosterone and oestrogen
  • D. Adrenalin and progesterone
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