MCQ’S ON EMP PATHWAY
1. This enzyme catalyzes the transfer of a phosphoryl group from ATP to glucose
(a) Hexokinase
(b) Phosphoglucose isomerase
(c) Aldolase
(d) Phosphoglucose mutase
Answer: (a)
2. Glycolysis is the conversion of
(a) Fructose into phosphoenolpyruvate
(b) Fructose into pyruvate
(c) Glucose into phosphoenolpyruvate
(d) Glucose into pyruvate
Answer: (d)
3. The EMP pathway in eukaryotes usually takes place in
(a) nucleus
(b) lysosome
(c) Golgi apparatus
(d) cytosol
Answer: (d)
4. In the last step of the EMP pathway or glycolysis, this substrate is used
(a) Phosphoenolpyruvate
(b) Pyruvate
(c) 1, 3-bisphosphoglycerate
(d) Glyceraldehyde 3-phosphate
Answer: (a)
5. When yeasts carry out alcoholic fermentation of glucose, the coenzyme – thiamine pyrophosphate is needed by
(a) transaldolase
(b) pyruvate decarboxylase
(c) lactate dehydrogenase
(d) hexokinase
Answer: (b)
6. The activity of this enzyme increases when the ATP supply of a cell depletes
(a) Glucokinase
(b) Phosphofructokinase-1
(c) Hexokinase
(d) Pyruvate kinase
Answer: (b)
7. This is not one of the steps between the glycolysis of glyceraldehyde 3-phosphate and 3-phosphoglycerate
(a) formation of 1,3-bisphosphoglycerate
(b) oxidation of NADH to NAD+
(c) ATP synthesis
(d) catalysis by phosphoglycerate kinase
Answer: (b)
8. In EMP pathway, the process by which ATP is formed from ADP is
(a) reduction
(b) oxidative phosphorylation
(c) substrate-level phosphorylation
(d) photo phosphorylation
Answer: (c)
9. In erythrocytes, the EMP pathway or glycolysis produces pyruvate which is metabolized further to
(a) haemoglobin
(b) ethanol
(c) lactate
(d) CO2
Answer: (c)
10. This enzyme catalyzes the first step of glycolysis or the EMP pathway
(a) Glucokinase
(b) Pyruvate kinase
(c) Phosphofructokinase-1
(d) Hexokinase
Answer: (d)
