Thyroxin Function MCQs Quiz Online PDF Download

Learn thyroxin function MCQs, O level biology test for online courses learning and test prep to practice. Nutrition in general quiz has multiple choice questions (MCQ), thyroxin function quiz questions and answers to learn for IGCSE O level revision guide tests.

IGCSE biology practice test MCQ on thyroxin is secreted from with options thiamine deficiency, theological inheritance, thyroid glands and muscles used for breathing problem solving skills for viva, competitive exam prep, interview questions with answer key. Free study guide is for online learning thyroxin function quiz 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