NEET BIOLOGY

HUMAN PHYSIOLOGY

BREATHING AND RESPIRATION

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
What is produced by anaerobic respiration?
A
Lactic acid and energy
B
Carbon dioxide and energy
C
Lactic acid and oxygen
D
Oxygen and energy
Explanation: 

Detailed explanation-1: -During anaerobic respiration, lactic acid is produced. This happens when the demand for energy is more and supply of oxygen is less, mainly during heavy exercise. The lactic acid thus formed is broken down by the supply of oxygen.

Detailed explanation-2: -The end products of anaerobic respiration vary, such as gases, alcohols, acids, and energy. In fermentation, only 2 ATPs are produced. Also, there is incomplete oxidation of carbohydrates. It occurs in simple prokaryotes, yeasts, and the muscle cells of humans during intense exercise.

Detailed explanation-3: -The end product of anaerobic respiration in plants is ethanol. At the same time, the end product of anaerobic respiration in animals is lactic acid.

Detailed explanation-4: -The products of anaerobic respiration are lactic acid, carbon dioxide, and water. Anaerobic respiration is the breakdown of glucose in the absence of oxygen. Inside the cell cytoplasm, glucose breaks down into pyruvic acid. If oxygen is absent, then pyruvic acid converts into lactic acid, carbon dioxide, and water.

Detailed explanation-5: -There are two types of fermentation, alcoholic and lactic acid. Fermentation follows glycolysis in the absence of oxygen. Alcoholic fermentation produces ethanol, carbon dioxide, and NAD+. Lactic acid fermentation produces lactic acid (lactate) and NAD+.

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