Question

Identify blanks a, b and c.
(i) a - Oestrogen - Maintenance of secondary sexual characters
(ii) $\alpha$ - cells of islets of Langerhans - b - Raises blood sugar level
(iii) Anterior pituitary - c - Oversecretion leads to gigantism

• A. a - Ovary, b - Insulin, c - Calcitonin
• B. a - Ovary, b - Glucagon, c - Growth hormone
• C. a - Placenta, b - Glucagen, c - Calcitonin
• D. a - Placenta, b - Insulin, c - Vasopressin

Answer 1

The correct option is B a - Ovary, b - Glucagon, c - Growth hormone

(i) a- Ovary- Oestrogen is a female sex hormone secreted from ovarian follicles. It stimulates the development of secondary sexual characters in females.

(ii) b- glucagon- αα -cells of islets of Langerhans secrete glucagon hormone which increases blood sugar level by stimulating glycogenolysis (breakdown of glycogen) and gluconeogenesis (synthesis of glucose from proteins and fats).

(iii) C- Growth hormone- is secreted from anterior lobe of pituitary gland. Hypersecretion of growth hormone leads to gigantism in which excessive growth of bones occur.

So, the correct answer is 'a - Ovary, b - Glucagon, c - Growth hormone'.