EVERYDAY SCIENCE

SCIENCE

RESPIRATION

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
What is the total net gain of ATP at the end of aerobic respiration?
A
2 ATP
B
34 ATP
C
36 ATP
D
38 ATP
Explanation: 

Detailed explanation-1: -The citric acid cycle produces 36 ATP molecules. So, in aerobic respiration, a total of 38 molecules of ATP are created, with 2 ATP molecules formed outside the mitochondria.

Detailed explanation-2: -Assertion :During aerobic respiration pyruvic acid formed as a result of glycolysis undergoes phosphorylation reaction to form acetyl CoA. Reason: There is net gain of 18 ATP molecules during aerobic respiration of one molecule of glucose.

Detailed explanation-3: -Glycolysis occurs in both aerobic and anaerobic states. In aerobic conditions, pyruvate enters the citric acid cycle and undergoes oxidative phosphorylation leading to the net production of 32 ATP molecules.

Detailed explanation-4: -Like aerobic respiration, anaerobic respiration involves glycolysis, a transition reaction, the citric acid cycle, and an electron transport chain. The total energy yield per glucose oxidized is less than with aerobic respiration with a theoretical maximum yield of 36 ATP or less.

Detailed explanation-5: -In eukaryotic cells, the theoretical maximum yield of ATP generated per glucose is 36 to 38, depending on how the 2 NADH generated in the cytoplasm during glycolysis enter the mitochondria and whether the resulting yield is 2 or 3 ATP per NADH.

There is 1 question to complete.