Biology 2021 Jamb Past Questions and Answers

Question 21 :

• JAMB 2021

A freshwater plant such as water lily can solve the problem of buoyancy by the possession of?

A. Aerenchyma tissues
B. Dissected leaves
C. Thin cell walls of the epidermis
D. Water-repelling epidermis

Question 22 :

• JAMB 2021

In the mammalian respiratory system. exchange of gases occurs in the?

A. Lungs
B. Bronchi
C. Bronchioles
D. Alveoli

Question 23 :

• JAMB 2021

Aged erythrocytes are destroyed in the?

A. Pancreas
B. Liver
C. Lymph nodes
D. Kidney

Question 24 :

• JAMB 2021

The villus in the small intestine is significant because it?

A. Increases the surface area for absorption
B. Increases the surface area for digestion
C. Assists in mixing digested food
D. Assists in filtering undigested food

Question 25 :

• JAMB 2021

Which of the following food substances will produce a brick-red colour when warmed with Benedict's solution?

A. Glucose
B. Starch
C. Egg White
D. Maltose