What is Respiration MCQs Questions and Answers PDF Book Download

What is respiration MCQs, what is respiration quiz answers to learn biology courses online. Respiration in biology multiple choice questions (MCQs), what is respiration quiz questions and answers for online college degrees. Molecular biology, oxidation and respiration, aerobic respiration and its waste, what is respiration test prep for biology certifications.

Learn respiration in biology test MCQs: air pressure in thorax increases in, with choices anaerobic respiration, inspiration, expiration, and all of the above for online college degrees. Practice assessment test for scholarships, online learning what is respiration quiz questions for competitive assessment in biology major.

MCQ on What is RespirationQuiz Book Download

MCQ: Air pressure in thorax increases in

  1. anaerobic respiration
  2. inspiration
  3. expiration
  4. all of the above


MCQ: Blood entering lungs contain

  1. very little oxygen (O2)
  2. very high carbon dioxide (CO2)
  3. vary low carbon dioxide (CO2)
  4. both A and B


MCQ: In expiration

  1. the diaphragm relaxes and arches upwards
  2. air enters the lungs
  3. ribs move upwards
  4. sternum moves up and away from backbone


MCQ: Stimulus for breathing is

  1. lack of oxygen in blood
  2. excess of carbon dioxide in blood
  3. contraction of alveoli
  4. diaphragm movements


MCQ: In anaerobic respiration (without O2) in mammals, wastes are

  1. water
  2. ethanol
  3. lactic acid
  4. carbon dioxide