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CARBOHYDRATES AND CARBOHYDRATE METABOLISM- Part 5
See all quizzes of CARBOHYDRATES AND CARBOHYDRATE METABOLISM- Part 5 here:
1 The general formula for polysaccharide is
(A) (C6H12O6)n (B) (C6H10O5)n
(C) (C6H12O5)n (D) (C6H19O6)n
2. The number of isomers of glucose is
(A) 4 (B) 8
(C) 12 (D) 16
3. The epimers of glucose is
(A) Fructose (B) Galactose
(C) Ribose (D) Deoxyribose
24. The intermediate in hexose monophosphate
shunt is
(A) D-Ribolose (B) D-Arobinose
(C) D-xylose (D) D-lyxose
5. Honey contains the hydrolytic product of
(A) Lactose (B) Maltose
(C) Inulin (D) Starch
6. On boiling Benedict’s solution is not
reduced by
(A) Sucrose (B) Lactose
(C) Maltose (D) Fructose
12 MCQs IN BIOCHEMISTRY
7. Glycosides are found in many
(A) Vitamins (B) Drugs
(C) Minerals (D) Nucleoproteins
8. Galactose on oxidation with conc. HNO3
produces
(A) Gluconic acid (B) Saccharic acid
(C) Saccharo Lactone (D) Mucic acid
9. The distinguishing test between monosaccharides
and dissaccharides is
(A) Bial’s test (B) Selwanoff’s test
(C) Barfoed’s test (D) Hydrolysis test
10. Cellulose is made up of the molecules of
(A) α-glucose (B) β-glucose
(C) Both of the above (D) None of these
11. Iodine solution produces no color with
(A) Cellulose (B) Starch
(C) Dextrin (D) Glycogen
12. Glycogen structure includes a branch in
between–glucose units:
(A) 6–12 (B) 8–14
(C) 6–10 (D) 12–18
13. Amylose contains glucose units
(A) 100–200 (B) 200–300
(C) 300–400 (D) 500–600
14. Each branch of amylopectin is at an
interval of glucose units:
(A) 14–20 (B) 24–30
(C) 34–40 (D) 44–50
15. N-acetylneuraminic acid is an example of
(A) Sialic acid (B) Mucic acid
(C) Glucuronic acid (D) Hippuric acid
16. In place of glucuronic acid chondroitin
sulphate B contains
(A) Gluconic acid (B) Gulonic acid
(C) Induronic acid (D) Sulphonic acid
17. Blood group substances consist of
(A) Lactose (B) Maltose
(C) Fructose (D) Mucose
18. The component of cartilage and cornea is
(A) Keratosulphate
(B) Chondroitin sulphate
(C) Cadmium sulphate
(D) Antimony sulphate
19. Benedict’s test is less likely to give weakly
positive results with concentrated urine
due to the action of
(A) Urea (B) Uric acid
(C) Ammonium salts (D) Phosphates
20. Active transport of sugar is depressed by
the agent:
(A) Oxaloacetate (B) Fumarate
(C) Malonate (D) Succinate
21. The general test for detection of
carbohydrates is
(A) Iodine test (B) Molisch test
(C) Barfoed test (D) Osazone test
22. Glucose absorption may be decreased in
(A) Oedema (B) Nephritis
(C) Rickets (D) Osteomalitis
23. Glycogen synthetase activity is depressed
by
(A) Glucose (B) Insulin
(C) Cyclic AMP (D) Fructokinase
24. The branching enzyme acts on the
glycogen when the glycogen chain has
been lengthened to between glucose units:
(A) 1 and 6 (B) 2 and 7
(C) 3 and 9 (D) 6 and 11
25. Cyclic AMP is formed from ATP by the
enzyme adenylate cyclase which is
activated by the hormone:
(A) Insulin (B) Epinephrine
(C) Testosterone (D) Progesterone
26. Hexokinase has a high affinity for glucose
than
(A) Fructokinase (B) Galactokinase
(C) Glucokinase (D) All of the above
147. Dihydroxyacetone phosphate and
glyceraldehyde-3-phosphate are
intercoverted by
(A) Triose isomerase
(B) Phosphotriose isomerase
(C) Diphosphotriose isomerase
(D) Dihydroxyacetone phosphorylase
28. Citrate is converted to isocitrate by
aconitase which contains
(A) Ca++ (B) Fe++
(C) Zn++ (D) Mg++
29. The reaction succinyl COA to succinate
requires
(A) CDP (B) ADP
(C) GDP (D) NADP+
30. The carrier of the citric acid cycle is
(A) Succinate (B) Fumarate
C) Malate (D) Oxaloacetate
