Human Respiration MCQs Quiz Online PDF Download

Learn human respiration MCQs, O level biology test for online courses learning and test prep to practice. Respiration in biology quiz has multiple choice questions (MCQ), human respiration quiz questions and answers to learn for SAT exam questions with answers.

IGCSE biology practice test MCQ on front ribs are attached to with options diaphragm, sternum, external intercostal muscles and internal intercostal muscles problem solving skills for viva, competitive exam prep, interview questions with answer key. 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 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. move 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