How well do you understand living things and their vital processes? Whether you are preparing for JAMB, WAEC, NECO and Post-UTME, these Biology past questions and answers cover such subjects as the chemistry of life, botany, evolution, genetics, ecology etc to help you know what to expect, improve your speed and confidence and be really prepared for the actual aptitude test.
The opening of the stomata is controlled by the
presence of a pore
increase in solute concentration in the guard cells
presence of guard cells
decrease in solute concentration in the guard cells
Correct answer is B
No explanation has been provided for this answer.
The anaerobic fermentation of a glucose molecule yields
38 ATP molecules
2 ATP molecules and alcohol
pyruvic acid and alcohol
water and carbon (IV) oxide
Correct answer is B
No explanation has been provided for this answer.
The surface of an alveolus in a mammal is well supplied with tiny blood vessels known as
arterioles
venules
arteries
capillaries
Correct answer is D
No explanation has been provided for this answer.
lipases
hydrolases
amylases
peptidases
Correct answer is A
No explanation has been provided for this answer.
All living cells require water because it
is a medium for all metabolic reactions
is a medium that neutralizes the acids in cells
is the main source of energy for the cell
prevents the development of diseases in cells
Correct answer is A
No explanation has been provided for this answer.