MCQ on Carbohydrate Metabolism Glycolysis and Glycogenesis is available for you on Medicalfond with other related mcq on general biochemistry
1.
Which
of the following enzymes are not involved in galactose metabolism?
(a) Galactokinase
(b) Glucokinase
(c) Galactose-1-Phosphate
Uridyltransferase
(d) UDP-Galactose 4- epimerase
Sol. (b) Glucokinase.
2.
Which
of the following enzymes leads to a glycogen storage disease known as Tarui’s
disease?
(a) Glucokinase
(b) Pyruvate Kinase
(c) Phosphofructokinase
(d) Phosphoglucomutase
Sol. (c) Phosphofructokinase.
3.
Which
of the following enzymes is defective in galactosemia- a fatal genetic disorder
in infants?
(a) Glucokinase
(b) Galactokinase
(c) UDP-Galactose 4- epimerase
(d) Galactose-1-Phosphate
Uridyltransferase
Sol. (d) Galactose-1-Phosphate
Uridyltransferase.
4.
Which
of the following enzyme deficiency leads to hemolytic anaemia?
(a) Glucokinase
(b) Pyruvate Kinase
(c) Phosphoglucomutase
(d) Phosphofructokinase
Sol. (b) Pyruvate Kinase.
5.
Which
of the following glucose transporters are important in fructose transport in
the intestine?
(a) GLUT5
(b) GLUT3
(c) GLUT4
(d) GLUT7
Sol. (a) GLUT5.
6.
Which
of the following is a tricarboxylic acid?
(a) Acetic acid
(b) Succinic acid
(c) Oxaloacetic acid
(d) Citric acid
Sol.(d) Citric acid.
7.
Which
of the following enzymes plays an important role in tumour metabolism?
(a) Glucokinase
(b) Pyruvate Kinase M2
(c) Phosphoglucomutase
(d) Phosphofructokinase
Sol. (b) Pyruvate Kinase M2.
8.
Which
of the following metabolites negatively regulates pyruvate kinase?
(a) Citrate
(b) Alanine
(c) Acetyl CoA
(d) Fructose-1,6-Bisphosphate
Sol. (b) Alanine
9.
The
glycerol phosphate shuttle functions in___________.
(a) Lipid catabolism
(b) Triglyceride synthesis
(c) Anaerobic glycolysis for the
regeneration of NAD
(d) Aerobic glycolysis to transport
NADH equivalents resulting from glycolysis into mitochondria.
Sol. (d) Aerobic glycolysis to
transport NADH equivalents resulting from glycolysis into mitochondria.
10.
In
muscles, the pyruvate is converted into lactate. Find the correct statement
(a) During lactate formation, NADH
is reconverted into NAD
(b) During the product of lactate
two ATP are produced
(c) Lactate is the substrate from
the downstream pathway
(d) Lactate acts as the substrate
for the formation of amino acid
Sol. (a) During lactate formation,
NADH is reconverted into NAD.
11.
Which
of the following glycolytic enzyme is inhibited by an accumulation of
long-chain fatty acid in the liver?
(a) Glucokinase
(b) Hexokinase
(a) Pyruvate kinase
(d) Phosphofructokinase
Sol. (a) Glucokinase.
12.
Which
of the following statements is known as the rate-limiting step in glycolysis?
(a) Enolase
(b) Phosphofructokinase
(c) Phosphohexose isomerase
(d) Glyceraldehyde-3-phosphate
dehydrogenase
Sol. (b) Phosphofructokinase.
13.
Which
of the following hormones decreases blood glucose and increases the uptake of
glucose in various tissues like skeletal muscle, adipose tissues?
(a) Insulin
(b) Cortisol
(a) Glucagon
(d) Epinephrine
Sol. (a) Insulin.
14.
What
is the net gain of ATP during the conversion of glucose to pyruvate?
(a) 2 ATP
(b) 4 ATP
(c) 6 ATP
(d) 1 ATP +1 GTP
15.
(a) 2 ATP.
15. Which of the following hormones
is responsible for increasing gluconeogenesis in the liver during prolonged
starvation?
(a) TSH
(b) Insulin
(c) Thyroxine
(d) Glucagon
Sol. (d) Glucagon.