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STD 11 - 19. Chemical coordination and integration — BIOLOGY STD 11 Science — Question

Rajasthan BoardEnglish MediumSTD 11 ScienceBIOLOGYSTD 11 - 19. Chemical coordination and integration1 Mark
MCQ
A steroid hormone which regulates glucose metabolism is
  • A
    cortisone
  • ✓
    cortisol
  • C
    corticosterone
  • D
    $11$-­deoxycorticosterone.
✓

Answer

Correct option: B.
cortisol
b
(b) : Adrenal glands or (suprarenal glands) are two triangular endocrine glands, each of which covers the superior surface of a kidney. Each gland has two parts, the medulla and cortex. The medulla forms the grey core of the gland; it consists mainlyof chromaffin tissue and is stimulated by the sympathetic nervous system to produce adrenaline and noradrenaline. The cortex is a yellowish tissue surrounding the medulla. It is stimulated by pituitary hormones (principally $ACTH$) to produce three kinds of corticosteroid hormones, which affect carbohydrate metabolism ($e.g.$, cortisol), electrolyte metabolism ($e.g.$, aldosterone), and the sex glands (oestrogens and androgens). Thus injury to adrenal cortex is not likely to affect the secretion of adrenaline.

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