Biology questions and answers

Biology Questions and Answers

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.

4,221.

During excretion of urea there is also a corresponding re-absorption of water into the blood. This re-absorption takes place in the

A.

uriniferous tubules

B.

Bowman's capsule

C.

glomerulus

D.

malpighian capsule

E.

renal artery

Correct answer is A

The uriniferous tubules refer to each of the long, fine, convoluted tubules conveying urine from the glomeruli to the renal pelvis in the vertebrate kidney. Water and salts are reabsorbed into the blood along their length.

4,222.

In anaerobic respiration, glucose is converted to one of the following

A.

Carbon dioxide and water

B.

 Carbon dioxide only

C.

Carbon dioxide and alcohol

D.

Alcohol and water

E.

water and acetic acid

Correct answer is C

No explanation has been provided for this answer.

4,223.

The part of the cell solely responsible for respiration is the

A.

nucleus

B.

nucleolus

C.

mitochondria

D.

golgi apparatus

E.

endoplasmic reticulum

Correct answer is C

No explanation has been provided for this answer.

4,224.

A green plant growing in a compost pit is feeding?

A.

holozoically

B.

parasitically

C.

saprophytically

D.

holophytically

E.

 in none of the above ways

Correct answer is C

Compost pit :a mixture of organic residues such as decomposed vegetation, manure, etc, used as a fertilizer.

holophytic: obtaining food after the manner of a green plant by photosynthetic activity

Saprotrophic nutrition or lysotrophic nutrition is a process of chemoheterotrophic extracellular digestion involved in the processing of decayed organic matter.

4,225.

A potometer is used to determine the rate at which a shoot

A.

respires

B.

sucks air bubbles

C.

loses weight

D.

absorbs water

E.

transpires

Correct answer is E

No explanation has been provided for this answer.