Biology WAEC

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.…

4 years ago

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 Correct Answer: Option C…

4 years ago

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 Correct Answer: Option B C. Large intestine

4 years ago

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 Correct Answer: Option A A. Filtration

4 years ago

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…

4 years ago

Which of the following does not occur during inhalation in mammals?

A. Rib cage is raised up B. Diaphragm contracts and becomes dome shaped C. Inter-coastal muscle contracts D. Volume of…

4 years ago

Which of the following is used to measure the rate of water uptake in plants?

A. Potometer B. Hydrometer C. Hygrometer D. aspirator Correct Answer: Option A A. Potometer

4 years ago

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…

4 years ago

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…

4 years ago

Which of the following will ease the friction between the ends of bones in a movable joint?

A. Serum B. Tissue C. Blood plasma D. Synovial fluid. Correct Answer: Option D D. Synovial fluid.

4 years ago