AP BIOLOGY

Detailed explanation-1: -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-2: -One ATP provides 7.3 kcal energy. Therefore, 38 ATP yields 227.4 Kcal energy.

Detailed explanation-3: -There are 38 ATP molecules produced in aerobic respiration all together, and 2 ATPs are formed outside the mitochondria. Note: For the use of glucose energy, fermentation is less efficient: only 2 ATP per glucose is produced, as opposed to 38 ATP per glucose nominally produced by aerobic respiration.

Detailed explanation-4: -Therefore, pyruvate diffuses into mitochondria and the gets converted into acetyl CoA to enter citric acid cycle. During citric acid cycle, 36 ATP molecules are produced. So, all total here are 38 molecules of ATP produced in aerobic respiration and 2 ATP are formed outside the mitochondria.

Detailed explanation-5: -Explanation for Correct option: 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.