Question

Growth hormone in pituitary is more effective in
A] Presence of thyroxine
B] Absence of thyroxine
C] Absence of insulin
D] Presence of adrenalin

Answer 1

write answer is D) ...

Answer 2

Answer:

A] Presence of thyroxine

Explanation:

Bone growth, protein synthesis, and cell division are accelerated by growth hormone by acting on soft tissues and bones.

Thyroxine, on the other hand, controls Basal Metabolic Rate (BMR). BMR is the rate of cellular oxidation which results in heat production.

Thyroxine also controls respiration and energy production. One of the target organs of Thyroxine is tissue. In tissues, increased energy leads to growth and development.  

Thus, both growth hormone and thyroxine are complementary to each other. They work best when acting together.

The absence of thyroxine leads to various diseases. Insulin and adrenalin maintain blood sugar levels and 'fight, fright, and flight' responses.

 

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