AP BIOLOGY

Detailed explanation-1: -In aerobic respiration, one glucose molecule results in a net ATP gain of 38 ATP. It comprises ATP generated during glycolysis, the link reaction, the TCA cycle, and oxidative phosphorylation in the electron transport system.

Detailed explanation-2: -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-3: -During anaerobic respiration of yeast, two ATP molecules are produced from each glucose molecule. Hence, 38 ATP will require 19 glucose molecules.

Detailed explanation-4: -In a eukaryotic cell, the process of cellular respiration can metabolize one molecule of glucose into 30 to 32 ATP. The process of glycolysis only produces two ATP, while all the rest are produced during the electron transport chain.

Detailed explanation-5: -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.