Question

Select the right match of endocrone gland and their hormones among the options given.

A. Pineal	(i) Epinephrine
B. Thyroid	(ii) Melatonin
C. Ovary	(iii) Estrogen
D. Adrenal medulla	(iv) Tetraiodothyronin

• A. A-(iv), B-(ii), C-(iii), D-(i)
• B. A-(ii), B-(iv), C-(i), D-(iii)
• C. A-(iv), B-(ii), C-(i), D-(iii)
• D. A-(ii), B-(iv), C-(iii), D-(i)

Answer 1

Answer: (D)

A-(ii), B-(iv), C-(iii), D-(i)

A. Pineal: It secretes a hormone named melatonin. It causes the concentration of pigment granules in the melanocytes, making the skin colour lighter in certain animals.

B. Thyroid: The thyroid gland secretes three hormones: Thyroxine or tetraiodothyronine, triiodothyronine and calcitonin. T${}_4$ regulate oxidation of food. Excess cause goitre.

C. Ovary: It secretes Oestrogen, Progesterone, Relaxin. Estrogen function is to develop female genital organs and accessory sexual characters.

D. Adrenal medulla: It releases epinephrine and nor-epinephrine. Its function is to whip up metabolism in an emergency by increasing heartbeat, blood pressure, respiratory rate, blood sugar level etc.

So, the correct answer is 'A-(ii), B- (iv), C-(iii), D-(i)'.