AP BIOLOGY

CELL RESPIRATION

GLYCOLYSIS

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
How many total ATP are made at the end of cell respiration?
A
32
B
34
C
36
D
38
Explanation: 

Detailed explanation-1: -Therefore, a total of 38 ATP molecules are obtained at the end of every respiration cycle in a cell.

Detailed explanation-2: -So, in aerobic respiration, a total of 38 molecules of ATP are created, with 2 ATP molecules formed outside the mitochondria. Electron transfer from glycolysis’ NADH and FADH2 molecules, pyruvate transformation, and the Krebs cycle generates up to 32 additional ATP molecules.

Detailed explanation-3: -One glucose molecule is metabolised to yield 38 ATP molecules during cellular respiration. The electron transport system produces 34 molecules of ATP out of a total of 38 molecules. During glycolysis, two ATP molecules are created inside the mitochondria and two ATP molecules are produced outside the mitochondria.

Detailed explanation-4: –During the complete process of aerobic respiration the total number of ATP molecules produced are 38. This process occurs through the breakdown of one molecule of glucose.

Detailed explanation-5: -Some textbooks state that the net yield is 36 ATPs in eukaryotes because 2 ATPs are used up to power cellular respiration itself in moving 2 NADH molecules into a mitochondrian (38 ATPs-2 ATPs = 36 ATPs).

There is 1 question to complete.