PHYSIOLOGY
MUSCLE ENERGETICS GLYCOLYSIS
|
Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
|
How many ATP molecules are required to start glycolysis?
|
|
Four
|
|
|
Three
|
|
|
Two
|
|
|
One
|
Explanation:
Detailed explanation-1: -Glycolysis starts with one molecule of glucose and ends with two pyruvate (pyruvic acid) molecules, a total of four ATP molecules, and two molecules of NADH.
Detailed explanation-2: -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.
There is 1 question to complete.