Co-ordination and control - Jamb Biology Past Questions and Answers

Question 136:

• JAMB 2015

White blood cells are also known as

A. Erythrocytes
B. Leucocytes
C. Lymphocytes
D. Phagocytes

Question 137:

• JAMB 2016

Which of the following plant hormone is responsible for ripening of fruits?

A. Gibberellins
B. Abscisic acid
C. Ethylene
D. Cytokinins

Question 138:

• JAMB 2016

Fibrinogen and prothrombin play important roles in the

A. Deamination of proteins
B. Clotting of blood
C. Detoxication of substances
D. Storage of vitamins

Question 139:

• JAMB 2016

The activity of ptyalin is likely to decrease with an increase in the concentration of

A. Oxygen
B. Starch
C. Protein
D. Acid

Question 140:

• JAMB 2016

The part of the mammalian ear responsible for the maintenance of balance is the

A. Cochlea
B. Pinna
C. Perilymph
D. Vestibular system