CELL RESPIRATION
GLYCOLYSIS
|
Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
|
|
|
2
|
|
|
4
|
|
|
6
|
|
|
8
|
Detailed explanation-1: -Note that this cycle runs twice for every molecule of glucose which undergoes oxidation during glycolysis, as two molecules of pyruvate are formed. Although some ATP is generated via the GTP derived from the Krebs cycle, most of the ATP generated during aerobic respiration comes from oxidative phosphorylation .
Detailed explanation-2: -Results of the Krebs Cycle After the second turn through the Krebs cycle, the original glucose molecule has been broken down completely. All six of its carbon atoms have combined with oxygen to form carbon dioxide.
Detailed explanation-3: -In the second reaction of the Krebs cycle, the isomerisation of citrate to isocitrate takes place. As an intermediate, cis-aconitate is formed. Therefore, it is a two-step reaction sequence.
Detailed explanation-4: -The Krebs cycle is the second phase in cellular respiration. It occurs in the mitochondria in the cell. The number of ATP molecules produced in the Krebs cycle is 2.
Detailed explanation-5: -Two molecules of acetyl-CoA are produced from each glucose molecule so two turns of the Krebs cycle are required which yields four CO2, six NADH, two FADH2 and two ATPs.