Biology MCQs (part 2) by General knowledge Solutions

Biology MCQs (part 2) by General knowledge Solutions

                                                                                 

1. 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

 2. The deficiency of Vitamin B12 leads to

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

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

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

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

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

 5. 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

 6. Fibre in the diet is beneficial in

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

7 Sucrose intolerance leads to

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

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

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

9. Milk contains very poor amounts of

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

 10. Egg contains very little

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

11. BMR (Basal Metabolic rate) is elevated in

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

 12. Soyabean proteins are rich in

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

 13. Corn and gliadin are low in

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

14. What is the disease caused by thiamine deficiency?

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

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

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

 16. Megaloblastic anemia is caused by the deficiency of

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

 17. This vitamin acts as anti-oxidant:

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

18. Calcitriol is

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

19. 1-hydroxylation of 25-OH vitamin D3 takes place in

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

20. 25-hydroxylation of vitamin D3 takes place in

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

21. Hydroxylation of 25-hydroxy cholecalciferol is promoted by

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

22. The egg injury factor in raw egg white is

• (A) Biotin
• (B) Avidin
• (C) Albumin
• (D) Calcium salts

 23. The following has cyanide:

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

 24. The human species can biosynthesize

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

 25. Retina contains this photosensitive pigment:

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

 26. Anti xerophthalmic vitamin is

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

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

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

 28. Gammaxane is an antimetabolite of

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

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

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

 30. Sulpha drugs are antimetabolities of

• (A) Vitamin K
• (B) Pyridoxin
• (C) Folic acid
• (D) Vitamin B2

31. 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

 32. The vitamin in leafy vegetables:

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

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

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

 34. Biotin is required for the reaction of CO2 with

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

 35. A deficiency of folate leads to

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

36. A deficiency of Iron leads to

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

37. Corninoid coenzymes are coenzymes of

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

38. Vitamin B12 initially binds to the proteins known as

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

 39. Extrinsic factor of castle is

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

40. Intrinsic factor of castle is

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

41. Pernicious means

• (A) Prolonged
• (B) Dangerous
• (C) Intermittent
• (D) Idiopathic
• 
  

 42. Reduction of D-ribonucleotides to Ddeoxy ribonucleotides in prokaryotes requires

• (A) 5, 6 dimethyl benzimidazole cobamide
• (B) Thioredoxin
• (C) Tetra hydrobiopterin
•  (D) Tetra hydrofolate

 43. Biotin is also known as

• (A) Anti egg white injury factor
• (B) Rutin
• (C) Both (A) and (B)
•  (D) None of these

 44. Angular stomatosis is due to

• (A) Ariboflavinoses
• (B) Deficiency of Vitamin C
• (C) Deficiency of Vitamin B1
• (D) Deficiency of folate

45. One of the main functions of Vitamin K is cofactor for

• (A) Carboxylate for the formation of γ carboxyglutamate
• (B) Methylation of δ-adenosyl methionine
• (C) Carboxylation of biotin
• (D) One carbon transfer by tetrahydrofolate

 46. Prothrombin time is prolonged by administering

• (A) Vitamin K
• (B) Dicoumarol
• (C) Calcium
• (D) Prothrombin

 47. This vitamin acts as antioxidant.

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

ANSWER:

1. B 2. C 3. D 4. C 5. B 6. D 7. C 8. B 9. C 10. C 11. A 12. B 13. D 14. D 15. B 16. A 17. C 18. D 19. B 20. A 21. B 22. B 23. A 24. D 25. A 26. D 27. C 28. D 29. A 30. C 31. A 32. D 33. D 34. B 35. B 36. A 37. D 38. B 39. B 40. A 41. B 42. B 43. A 44. B 45. A 46. A 47. B