BIO CHEMISTRY MCQs (PART 3) by General knowledge Solutions

BIO CHEMISTRY MCQs (PART 3 )    by General knowledge Solutions

                                                                           

1. Marasmus is due to malnutrition of

•  (A) Proteins
•  (B) Proteins and calories
•  (C) Proteins and vitamins
•  (D) Proteins and minerals

 2. Energy value in kilocalorie per gram of fat in the body is

• (A) 1
• (B) 4
• (C) 9
• (D) 18

 3. Which among the following is an essential amino acid for man?

• (A) Alanine
• (B) Serine
• (C) Valine
• (D) Glutamic acid

 4. Under what condition to basal metabolic rate goes up?

• (A) Cold environment
• (B) Hot environment
• (C) Intake of base forming foods
• (D) Hypothyroidism

5. What is the major form of caloric storage in human body?

• (A) ATP
• (B) Glycogen
• (C) Creatine phosphate
•  (D) triacylglycerol

 6. The phosphoprotein of milk is

•  (A) Lactalbumin
•  (B) Lactoglobulin
•  (C) Vitellin
•  (D) Caein

7. Dictary deficiency of this vitamin leads to night blindness:

• (A) Retinol
• (B) Niacin
• (C) Ascorbic acid
• (D) Cholecalciferol

8. A non essential amino acid is not

• (A) Absorbed in the intestines
• (B) Required in the diet
• (C) Incorporated into the protein
• (D) Metabolized by the body

 9. The deficiency of Vitamin B12 leads to

• (A) Pernicious anaemia
• (B) Megablastic anaemia
• (C) Both (A) and (B)
• (D) None of these

10. Which among the following is a nutritionally essential amino acid for man?

• (A) Alanine
• (B) Glycine
• (C) Tyrosine
•  (D) Isoleucine

 11. The maximum specific dynamic action of food stuff is exerted by

• (A) carbohydrates
• (B) fats
• (C) proteins
• (D) vitamins

12. The essential amino acids

• (A) must be supplied in the diet because the organism has lost the capacity to aminate the corresponding ketoacids
• (B) must be supplied in the diet because the human has an impaired ability to synthesize the carbon chain of the corresponding ketoacids
• (C) are identical in all species studied
• (D) are defined as these amino acids which cannot be synthesized by the organism at a rate adequate to meet metabolic requirements

 13. Fibre in the diet is beneficial in

• (A) Hyper glycemia
• (B) Hyper cholseteremia
• (C) Colon cancer
• (D) All of these

 14 Sucrose intolerance leads to

• (A) Hyper glycemia
• (B) Glycosuria
• (C) Diarrhoea
• (D) Hypoglycemia

 15. There can be intolerance with respect to the following sugar:

•  (A) Glucose
•  (B) Lactose
•  (C) Maltose
•  (D) Xylose

 16. Milk contains very poor amounts of

• (A) Calcium
• (B) Phosphate
• (C) Iron 
• (D) Riboflavin

17. Egg contains very little

•  (A) Fat 
•  (B) Proteins
•  (C) Carbohydrates
•  (D) Calcium and phosphorus

 18. BMR (Basal Metabolic rate) is elevated in

• (A) Hyper thyroidism
• (B) Under nutrition
• (C) Starvation
• (D) Hypothyroidism

19. Soyabean proteins are rich in

• (A) Lysine
• (B) Alanine
• (C) Glcyine
• (D) Aspartic acid

20. Corn and gliadin are low in

• (A) Lysine
• (B) Alanine
• (C) Glycine
• (D) Aspartic acid

21. What is the disease caused by thiamine deficiency?

•  (A) Nycalopia
• (B) Scurvy
• (C) Rickets
• (D) Beriberi

22. Retinol and retinol –binding protein (RBP) bound with this protein:

• (A) Albumin
• (B) Prealbumin
• (C) α2-globulin
• (D) β-globulin

 23. Megaloblastic anemia is caused by the deficiency of

• (A) Folic acid
• (B) Vitamin B6
• (C) Iron
• (D) Protein

 24. This vitamin acts as anti-oxidant:

• (A) Vitamin A
• (B) Vitamin D
• (C) Vitamin E
• (D) Vitamin K

25. Calcitriol is

• (A) 1-OH-cholecalciferol
•  (B) 25-OH-cholecalciferol
• (C) 24, 25-diOH cholecalciferol
• (D) 1, 25-diOH cholecalciferol

26. 1-hydroxylation of 25-OH vitamin D3 takes place in

• (A) Liver
• (B) Kidneys
• (C) Intestine
•  (D) Pancreas

27. 25-hydroxylation of vitamin D3 takes place in

• (A) Liver
• (B) Kidneys
• (C) Intestine
•  (D) Pancreas

 28. Hydroxylation of 25-hydroxy cholecalciferol is promoted by

•  (A) Cytochrome - a
•  (B) Parathyroid hormone
•  (C) Cytochrome-b
• (D) CAMP

 29. The egg injury factor in raw egg white is

 (A) Biotin

(B) Avidin

 (C) Albumin

 (D) Calcium salts

 30. The following has cyanide:

•  (A) Vitamin B12
•  (B) Adenyl cobamide
•  (C) Benzimidazole cobamide
•  (D) Methyl cobamide

 31. The human species can biosynthesize

• (A) Vitamin C
• (B) Vitamin B12
• (C) Thiamine
• (D) Niacin

 32. Retina contains this photosensitive pigment:

• (A) Rhodopsin
• (B) Opsin
• (C) Retinol
• (D) Melanin 

 33. Anti xerophthalmic vitamin is

• (A) Vitamin B1
• (B) Vitamin B2
• (C) Vitamin B6
• (D) Vitamin A

 34. One of the following is not a symptom of addison’s disease.

• (A) Hypoglycemia
• (B) Hyponatremia
• (C) Hypokalemia
• (D) Hypochoremia

35. Gammaxane is an antimetabolite of

•  (A) Thiamine 
•  (B) Riboflavin
•  (C) Pyridoxin
•  (D) Inositol

36. Pyridoxin deficiency may lead to convulsions as it is needed for the synthesis of

• (A) GABA
•  (B) PABA
• (C) EFA
• (D) SAM

37. Sulpha drugs are antimetabolities of

• (A) Vitamin K
• (B) Pyridoxin
• (C) Folic acid
•  (D) Vitamin B 

 38. This abnormal metabolite may be responsible for the neurological manifestation of pernicious anemia:

• (A) Taurine
• (B) Methyl malonic acid
• (C) Xantherunic acid
• (D) Phenyl pyruvic acid

 39. The vitamin in leafy vegetables:

•  (A) D
• (B) K
• (C) A
• (D) Both (B) and (C)

40. Isonicotinic acid hydrazide given in the treatment of tuberculosis may lead to a deficiency of

• (A) Vitamin A
• (B) Pyridoxin
• (C) Folate
• (D) Inositol

41. Biotin is required for the reaction of CO2 with

• (A) Water
• (B) Acetyl CoA
• (C) NH3
• (D) Incorporation of carbon 6 in purine

 42. A deficiency of folate leads to

• (A) Megaloblastic anemia
• (B) Aplastic anemia
• (C) Pernicious anemia
• (D) Hypochromic microcytic anemia

43. A deficiency of Iron leads to

•  (A) Megaloblastic anemia
• (B) Aplastic anemia
• (C) Pernicious anemia
• (D) Hypochromic microcytic anemia

 44. Corninoid coenzymes are coenzymes of

• (A) Vitamin B12
• (B) Vitamin B6
• (C) Vitamin B2
• (D) Vitamin B1 

45. Vitamin B12 initially binds to the proteins known as

• (A) Transcobalamin I
• (B) R-Proteins
• (C) Transcobalamin II
• (D) Intrinsic factor of castle

 46. Extrinsic factor of castle is

• (A) Vitamin B12
• (B) Glycoprotein
• (C) R-Proteins
• (D) Sigma protein

ANSWER

1. B 2. C 3. C 4. A 5. C 6. D 7. A 8. B .9 C 10. D 11. C 12. B 13. D 14. C 15. B 16. C 17. C 18. A 19. B 20. D 21. D 22. B 23. A 24. C 25. D 26. B 27. A 28. B 29. B 30. A 31. D 32. A 33. D 34. C 35. D 36. A 37. C 38. A 39. D 40. D 41. B 42. B 43. A 44. D 45. B 46. B