MCQ
Which statement is not true for a hormone?
  • A
    They act on target organs usually away from the source glands.
  • B
    They are secreted directly into the blood.
  • They are used again and again like catalysts.
  • D
    They are produced in very minute quantities and are biologically very active.

Answer

Correct option: C.
They are used again and again like catalysts.
(c) They are used again and again like catalysts.
Explanation:
Hormones are chemical regulators which are produced in very small quantities, and affect different organs (widespread in the body).
Hormones, unlike catalysts, are not reused. They act once and are then metabolised or excreted.

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