Anaerobic respiration occurs in the absence of _____?

By BYJU'S Exam Prep

Updated on: October 17th, 2023

(A) Oxygen

(B) Ozone

(C) Carbon monoxide

(D) Carbon dioxide

Anaerobic respiration occurs in the absence of oxygen. Oxygen is not required for anaerobic respiration. By breaking down dietary molecules without oxygen, a comparatively modest amount of energy is released into the cells. When you work out vigorously, your muscles engage in anaerobic respiration.

Anaerobic and Aerobic Respiration

  • Cells can use anaerobic respiration, which occurs without the presence of oxygen, to break down sugars and produce energy.
  • Contrast this with aerobic respiration, which uses oxygen to make energy and is extremely efficient.
  • The process through which organisms convert fuel, such as fats and sugars, into chemical energy is known as aerobic respiration.
  • Anaerobic respiration, in contrast, doesn’t require oxygen.
  • All cells use respiration to convert fuel into energy that can drive cellular functions.


Anaerobic respiration occurs in the absence of ____? (A) Oxygen (B) Ozone (C) Carbon monoxide (D) Carbon dioxide

Oxygen deprivation results in anaerobic respiration. The dietary molecules are broken down, and a sufficient amount of energy is released without oxygen.

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