EVERYDAY SCIENCE

SCIENCE

RESPIRATION

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
How many ATP are produced from one molecule of glucose by fermentation?
A
36 ATP
B
2 ATP
C
Either A or B
D
None of the above
Explanation: 

Detailed explanation-1: -Thus a total of 2 ATPs are generated from the fermentation of a glucose molecule.

Detailed explanation-2: -Fermentation happens in anaerobic conditions (i.e., without oxygen). Fermentation begins with glycolysis which breaks down glucose into two pyruvate molecules and produces two ATP (net) and two NADH. Fermentation allows glucose to be continuously broken down to make ATP due to the recycling of NADH to NAD+.

Detailed explanation-3: -Net ATP production when one molecule of glucose is fermented to alcohol or lactic acid: When glucose ferments, there is a net gain of two ATP molecules in the glycolysis process. Both lactic acid and alcoholic fermentation proceed in the same way.

Detailed explanation-4: -Lactic acid fermentation has two steps: glycolysis and NADH regeneration. During glycolysis, one glucose molecule is converted to two pyruvate molecules, producing two net ATP and two NADH.

Detailed explanation-5: -In a eukaryotic cell, the process of cellular respiration can metabolize one molecule of glucose into 30 to 32 ATP.

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