Human Respiration MCQs Quiz Online PDF Download

Practice human respiration MCQs, O level biology MCQ test for online learning. Respiration in biology quiz has multiple choice questions (MCQ), human respiration quiz questions and answers to practice as front ribs are attached to the, answer key help with choices as diaphragm, sternum, external intercostal muscles and internal intercostal muscles problem solving for viva, competitive exam preparation, interview questions. Free study guide is for online learning human respiration quiz with MCQs to practice test questions with answers.

MCQs on Human Respiration Quiz PDF Download

MCQ. Front the ribs are attached to the

  1. diaphragm
  2. sternum
  3. external intercostal muscles
  4. internal intercostal muscles


MCQ. Dry mass is lost through

  1. lenticels
  2. respiration
  3. stomata
  4. limiting factor of enzymes


MCQ. Cuticular respiration is important to

  1. reduce stomatal respiration
  2. continue transpiration pull
  3. in night
  4. help plant survive heat


MCQ. Alveolar walls are

  1. a lining of single cells
  2. a lining of multiple cells
  3. are a lining of palisade cells
  4. depend on the age of organism


MCQ. Over-breathing can be countered through

  1. in breath longer than out breath
  2. out breath longer than in breath
  3. excessive breathing
  4. holding breath