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1
What drives the directionality of reactions in glycolysis?
A:
Temperature and pressure
B:
Concentration of reactants and products
C:
Enzyme concentration
D:
All of these factors
2
Which compound serves as an allosteric regulator derived from glycolytic intermediates?
A:
Lactate
B:
Acetyl-CoA
C:
2,3-Bisphosphoglycerate
D:
Fructose-1,6-bisphosphate
3
What type of reaction occurs during substrate-level phosphorylation in glycolysis?
A:
Oxidation-reduction reaction
B:
Hydrolysis reaction
C:
Phosphorylation reaction
D:
Condensation reaction
4
What is the role of NAD+ in glycolysis?
A:
It acts as an electron donor.
B:
It gets reduced to NADH.
C:
It generates ATP directly.
D:
It phosphorylates glucose.
5
Which glycolytic intermediate can be converted into glycerol for lipid synthesis?
A:
Fructose-6-phosphate
B:
Glyceraldehyde-3-phosphate
C:
Dihydroxyacetone phosphate
D:
Pyruvate
6
Which of the following enzymes catalyzes a key regulatory step in glycolysis?
A:
Hexokinase
B:
Phosphofructokinase-1
C:
Pyruvate kinase
D:
All of the above
7
What happens to pyruvate when oxygen is present?
A:
It is converted to lactate.
B:
It enters the TCA cycle.
C:
It is converted to ethanol.
D:
It remains in the cytoplasm.
8
What is the overall reaction of glycolysis?
A:
Glucose + 2 NAD+ + 2 ADP + 2 Pi → 2 Pyruvate + 2 NADH + 2 H+ + 2 ATP + 2 H2O
B:
Glucose + O2 → CO2 + H2O + ATP
C:
Pyruvate + NADH → Lactate + NAD+
D:
Glucose + ATP → Glucose-6-phosphate + ADP
9
Which of the following sugars can enter glycolysis?
A:
Sucrose
B:
Fructose
C:
Galactose
D:
All of the above
10
What does the term “ATP payoff phase” refer to in glycolysis?
A:
The phase where ATP is consumed
B:
The phase where ATP is generated
C:
The phase where glucose is broken down
D:
The phase where NADH is produced
1
2
3
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