The isomerization of glucose-6-phosphate to fructose-6-phosphate in glycolysis is catalyzed by:
Hexokinase
Phosphoglucose isomerase
Phosphofructokinase
Aldolase
Related Questions
In which of the following reactions of glycolysis, oxidation takes place?
Glucose 6- to fructose 6-
Glyceraldehydes 3-phosphate to 1, 3-diphosphoglycerate
1,3-diphosphoglycerate to 3-phosphoglycerate
2-phosphoglycerate to phosphoglycerate
In glycolysis, how many ATP molecules are consumed before the production phase begins?
1
2
3
4
Which one is correct sequence in glycolysis?
G-6-PβPEP β 3-PGAL β 3-PGA
G-6-Pβ3-PGAL β 3-PGA β PEP
G-6-PβPEP β 3-PGA β 3-PGAL
G-6-Pβ3-PGA β3-PGAL β PEP
Link enzyme in cellular respiration is.
Citrate synthetase
Pyruvate Dehydrogenase
Isocitrate Dehydrogenase
Succinyl thiokinase
The first committed step in glycolysis involves the conversion of glucose to glucose-6-phosphate. This reaction prevents glucose from:
Leaving the cell
Entering the mitochondria
Being stored as glycogen
Being converted to fructose
In photosynthesis, NADPH is formed but in respiration it forms during
HMP
ETS
Krebsβ cycle
None of these
If the standard free energy change (') for the conversion of glucose to pyruvate is -180 kJ/mol and the ' for ATP hydrolysis is -30 kJ/mol, what is the theoretical maximum number of ATP molecules that could be generated from the complete oxidation of one glucose molecule to pyruvate, assuming 100% efficiency?
3 ATP
6 ATP
9 ATP
12 ATP
Which of the following is NOT a direct product of glycolysis?
Acetyl-CoA
Pyruvate
ATP
NADH
A rare genetic disorder impairs the enzyme phosphoglycerate kinase. Which of the following metabolic consequences is MOST likely to be observed in an individual with this disorder?
Increased ATP production and accumulation of 3-phosphoglycerate
Reduced ATP production and accumulation of 1,3-bisphosphoglycerate
No change in ATP production but accumulation of pyruvate
Increased lactate production and depletion of NAD+
Given below are two statements : One is labelled as Assertion A and the other is labelled as Reason R :
Assertion A : ATP is consumed in the initial steps of glycolysis.
Reason R : ATP is required to phosphorylate glucose and fructose-6-phosphate.
In the light of the above statements, choose the correct answer from the options given below :
Both A and R are true and R is the correct explanation of A
Both A and R are true but R is NOT the correct explanation of A
A is true but R is false
A is false but R is true