OAU Biology 2019/2020 Past Questions

Practice each question, then open it to see the full details.

Which of the following seecretes two hormones that help in blood sugar regulation?

A.spleen
B.parathyroid
C.thyroid
D.pancreas

Which of the following hormones is produced during fright or when agitated?

A.insulin
B.adrenalin
C.thyroxine
D.pituitrin

Hormones are transported arround the mammalian body by

A.water
B.nerves
C.blood
D.oswmosis

Which of the following component of cell is responsible for respirstion?

A.nucleus
B.nucleolus
C.golgi appaaratus
D.mitochondria

When glucose is broken down in the absence of oxygen, the products are .......

A.water and carbondioxide
B.water and alcohol
C.carbondioxide and alcohol
D.oxygen and carbondioxide

Anaerobic respiration differs from aerobic respiration by the production of

A.less amount of energy and water
B.greater amount of energy and alcohol
C.less amount of energy and alcohol
D.greater amount of energy and water

Which of these parts of the mammalian ear is directly concerned with the sense of balance?

A.semi-circular canals
B.ear drum
C.pinna
D.ossicles

Atmospheric nitrogen is directly replenised in nature through

A.the activities of denitrifying bacteria
B.the breakdown of ammonium salt in the solid
C.the activities of nitrogen-fixing bacterium in root nodules
D.activities of farmers