Thyroxin Function MCQs Quiz Online PDF Download

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IGCSE biology practice test MCQ: thyroxin is secreted from with choices thiamine deficiency, theological inheritance, thyroid glands and muscles used for breathing with past papers, exam papers and past papers important questions for online distance learning tests. Free study guide is for online learning thyroxin function quiz test with MCQs to practice test questions with answers.

MCQs on Thyroxin Function Quiz PDF Download

MCQ: Thyroxin is secreted from

  1. thiamine deficiency
  2. theological inheritance
  3. thyroid glands
  4. muscles used for breathing


MCQ: An overactive thyroid gland may

  1. slow the metabolic rate
  2. expedite the metabolic rate
  3. may denature the metabolic enzymes
  4. may increase the pH from 7 to 9 approx.


MCQ: Apart from other reasons, excess thyroxin may cause

  1. myxedema
  2. heart attack
  3. meningitis
  4. obesity


MCQ: Function of thyroxin is to

  1. regulate the breathing rate
  2. regulate the metabolic rate
  3. regulate sweat glands
  4. regulate prevention of heat loss