HUMAN PHYSIOLOGY
BREATHING AND RESPIRATION
|
Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
|
|
|
The net result is 2 ATP
|
|
|
Produced 4 ATP
|
|
|
Needs 2 ATP to begin the reaction
|
|
|
Produces 2 NADH per pyruvate
|
Detailed explanation-1: -In the first step, glucose ⇢ glucose-6-phosphate, ATP is used and gets converted into ADP. Similarly, in the third step, fructose-6-phosphate ⇢ fructose-1, 6-biphosphate, ATP is used. Thus, two ATPs are used in the first three steps of glycolysis. Hence, to split the glucose 2 molecules of ATPs are used.
Detailed explanation-2: -Glycolysis produces 4 ATP molecules. However, 2 ATP molecules are required to initiate glycolysis.
Detailed explanation-3: -One glucose molecule yields four ATP molecules in total during glycolysis. Since 2 ATP molecules are used up in the first phase of glycolysis, there is a net gain of 2 ATP molecules. In addition, glycolysis results in the production of 2 NADH molecules.
Detailed explanation-4: -1: The first half of glycolysis: investment: The first half of glycolysis uses two ATP molecules in the phosphorylation of glucose, which is then split into two three-carbon molecules.