Conversation of glucose to glucose β 6 β phosphate, the first irreversible reaction of glycolysis, is catalyzed by
Aldolase
Hexokinase
Enolase
Phosphofructokinase
Related Questions
Which of the following statements is INCORRECT regarding the role of ATP in the early steps of glycolysis?
ATP is consumed in the phosphorylation of glucose.
ATP is used to activate glucose.
ATP is produced to power the initial steps.
ATP is used in the formation of fructose-1,6-bisphosphate.
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
Phase common in aerobic and anaerobic respiration is
TCA cycle
Glycolysis
Glycogenolysis
ETS
Where does glycolysis occur within the cell?
Mitochondria
Nucleus
Cytoplasm
Golgi apparatus
Which of the following is true regarding glycolysis?
I. Takes place in cytosol
II. Produces no ATP
III. Has no connection with electron transport chain
IV. Reduces two molecules of NAD for every glucose molecule processed
Choose the correct option
I and IV only
I, II, and III only
II and III only
I, II, III, and IV
How many carbon atoms are present in a molecule of pyruvate?
1
2
3
4
Link enzyme in cellular respiration is.
Citrate synthetase
Pyruvate Dehydrogenase
Isocitrate Dehydrogenase
Succinyl thiokinase
Phosphorylation of glucose during glycolysis is catalyzed by?
Phosphoglucomutase
Phosphoglucose
Hexokinase
Phosphorylase
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
Under anaerobic conditions, if a cell utilizes glucose exclusively via glycolysis, what would be the net ATP yield per glucose molecule if the glyceraldehyde-3-phosphate dehydrogenase reaction is bypassed by a hypothetical enzyme that directly converts glyceraldehyde-3-phosphate to 3-phosphoglycerate without generating NADH?
0 ATP
2 ATP
4 ATP
6 ATP