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CARBOHYDRATES AND CARBOHYDRATE METABOLISM- Part 10
See all quizzes of CARBOHYDRATES AND CARBOHYDRATE METABOLISM- Part 10 here:
1 Which one of the following compounds
cannot give rise to the net synthesis of
Glucose?
(A) Lactate (B) Glycerol
(C) α-ketoglutarate (D) Acetyl CoA
2. Which of the following reactions is unique
to gluconeogenesis?
(A) Lactate Pyruvate
(B) Phosphoenol pyruvate pyruvate
(C) Oxaloacetate phosphoenol pyruvate
(D) Glucose-6-phosphate Fructose-6-phosphate
3. The synthesis of glucose from pyruvate
by gluconeogenesis
(A) Requires the participation of biotin
(B) Occurs exclusively in the cytosol
(C) Is inhibited by elevated level of insulin
(D) Requires oxidation/reduction of FAD
4. The conversion of pyruvate to acetyl CoA
and CO2
(A) Is reversible
(B) Involves the participation of lipoic acid
(C) Depends on the coenzyme biotin
(D) Occurs in the cytosol
5. Pasteur effect is
(A) Inhibition of glycolysis
(B) Oxygen is involved
(C) Inhibition of enzyme phosphofructokinase
(D) All of these
6. How many ATPs are produced in the
conversion of phosphoenol pyruvate to
citrate?
(A) 1 (B) 2
(C) 4 (D) 6
7. Reduced glutathione functions in R.B.Cs
to
(A) Produce NADPH
(B) Reduce methemoglobin to hemoglobin
(C) Produce NADH
(D) Reduce oxidizing agents such as H2O2
8. Phenylalanine is the precursor of
(A) L-DOPA (B) Histamine
(C) Tyrosine (D) Throxine
9. D-Mannose is present in some plant
products like
(A) Resins (B) Pectins
(C) Mucilage (D) Gums
280. Galactose is a main constituent of
(A) Milk sugar (B) Honey
(C) Cane sugar (D) Chitin
10. Glucosamine is an important constituent
of
(A) Homopolysaccharide
(B) Heteropolysaccharide
(C) Mucopolysaccharide
(D) Dextran
12. Glycogen is present in all body tissues
except
(A) Liver (B) Brain
(C) Kidney (D) Stomach
13. Iodine test is positive for starch, dextrin and
(A) Mucoproteins (B) Agar
(C) Glycogen (D) Cellulose
22 MCQs IN BIOCHEMISTRY
14. The general formula for polysaccharide is
(A) (C6H10O5)n (B) (C6H12C6)n
(C) (C6H12O5)n (D) (C5H10O5)n
15. Epimers of glucose is
(A) Fructose (B) Galactose
(C) Ribose (D) Deoxyribose
16. Human heart muscle contains
(A) D-Arabinose (B) D-Ribose
(C) D-Xylose (D) L-Xylose
17. The intermediate n hexose monophosphate
shunt is
(A) D-Ribulose (B) D-Arabinose
(C) D-xylose (D) D-Lyxose
18. On boiling Benedict’s solution is not
reduced by
(A) Sucrose (B) Lactose
(C) Maltose (D) Fructose
19. The distinguishing test between monosaccharides
and dissaccharide is
(A) Bial’s test (B) Seliwanoff’s test
(C) Barfoed’s test (D) Hydrolysis test
20. Barfoed’s solution is not reduced by
(A) Glucose (B) Mannose
(C) Sucrose (D) Ribose
21. Cori cycle is
(A) Synthesis of glucose
(B) reuse of glucose
(C) uptake of glycose
(D) Both (A) & (B)
22. Cane sugar is known as
(A) Galactose (B) Sucrose
(C) Fructose (D) Maltose
23. Which of the following is not reducing
sugar?
(A) Lactose (B) Maltose
(C) Sucrose (D) Fructose
24. α−D-Glucose and β−D-glucose are related
by
(A) Epimers (B) Anomers
(C) Multirotation (D) Ketoenol pair
25. The stable ring formation in D-Glucose
involves
(A) C-1 and C-4 (B) C-1 and C-2
(C) C-1 and C-5 (D) C-2 and C-5
26. Reduction of Glucose with Ca++ in water
produces
(A) Sorbitol (B) Dulcitol
(C) Mannitol (D) Glucuronic acid
27. Starch and glycogen are polymers of
(A) Fructose (B) Mannose
(C) α−D-Glucose (D) Galactose
28. Reducing ability of carbohydrates is due
to
(A) Carboxyl group (B) Hydroxyl group
(C) Enediol formation (D) Ring structure
29. Which of the following is not a polymer
of glucose?
(A) Amylose (B) Inulin
(C) Cellulose (D) Dextrin
30. Invert sugar is
(A) Lactose
(B) Mannose
(C) Fructose
(D) Hydrolytic product of sucrose
31 The carbohydrate reserved in human
body is
(A) Starch (B) Glucose
(C) Glycogen (D) Inulin
32 A dissaccharide linked by α-1-4 Glycosideic
linkages is
(A) Lactose (B) Sucrose
(C) Cellulose (D) Maltose
