PHYSIOLOGY
MUSCLE ENERGETICS GLYCOLYSIS
|
Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
|
Which of the following enzyme catalyzes in the fourth step of glycolysis?
|
|
Phosphofructokinase
|
|
|
Aldolase
|
|
|
Phosphoglucose isomerase
|
|
|
Phosphoglyceratekinase
|
Explanation:
Detailed explanation-1: -In the fourth step in glycolysis the enzyme Fructose-bisphosphate aldolase cleaves 1, 6-bisphosphate into two three-carbon isomers: dihydroxyacetone-phosphate and glyceraldehyde-3-phosphate.
Detailed explanation-2: -Aldolase is a glycolytic enzyme that catalyzes the conversion of fructose 1-6-diphosphate to glyceraldehyde 3-phosphate and dihydroxy-acetone phosphate via the glycolysis metabolic pathway. Within the cell, aldolase is localized in both the cytoplasm and nucleus.
Detailed explanation-3: -Reaction 4: fructose-1, 6-bisphosphate is split into 2 3-carbon molecules, one aldehyde and one ketone: dihyroxyacetone phosphate (DHAP) and glyceraldehyde 3-phosphate (GAP). The enzyme is aldolase.
There is 1 question to complete.