Biology MCQs with Answer (part 2) by General knowledge Solutions

Biology MCQs with Answer (part 2)  by General knowledge Solutions

                                                                                   

0. The class specific function of the different immunoglobulin molecules is constituted by

(A) Variable region of L chain

(B) Constant region of H chain

(C) Variable region of H chain

(D) Constant region particularly CH2 and CH3 of H chain

1. Hinge region, the region of Ig molecule which is flexible and more exposed to enzymes is the

(A) Region between first and second constant regions of H chain (domains CH1 and CH2)

(B) Region between second and third constant regions of H chain (CH2 and CH3)

(C) Variable regions of H chain

(D) Variable regions of L chain

2. The smallest immunoglobulin is

(A) Ig G

(B) Ig E

(C) Ig D

(D) Ig A

3. The number of sub classes of Ig G is

(A) 2

(B) 3

(C) 4

(D) 8

4. Most abundant Ig G subclass in the serum is

(A) Ig G1

(B) Ig G2

(C) Ig G3

(D) Ig G4

5. The immunoglobulin which can cross the placenta is

(A) Ig A

(B) Ig M

(C) Ig G

(D) Ig D

 6. The immunoglobulin possessing lowest concentration of carbohydrate is

(A) Ig A

(B) Ig E

(C) Ig M

(D) Ig G

 7. The normal serum level of Ig G is

(A) 1200 mg%

(B) 500 mg%

(C) 300 mg%

(D) 200 mg%

 8. The half life of Ig G is

(A) 2–8 days

(B) 1–4 days

(C) 19–24 days

(D) 6 days

 9. Most heat labile immunoglobulin is

(A) Ig G

(B) Ig A

(C) Ig M

(D) Ig D

 10. The immunoglobulin possessing highest concentration of carbohydrate is

(A) Ig G

(B) Ig M

(C) Ig A

(D) Ig D

 11. The normal serum level of Ig D is

(A) 1 mg%

(B) 2 mg%

(C) 3 mg%

(D) 5 mg%

12. The half life of Ig D is

(A) 1 day

(B) 2–8 days

(C) 10–15 days

(D) 20–24 days

 13. The carbohydrate content of Ig M is about

(A) 2.8%

(B) 6.4%

(C) 8.0%

(D) 10.2%

14. The immunoglobulin having highest sedimentation coefficient is

(A) Ig G

(B) Ig A

(C) Ig M

(D) Ig D

15. The immunoglobulin having highest molecular weight is

(A) Ig G

(B) Ig M

(C) Ig E

(D) Ig A

16. The half life of Ig M is

(A) 2 days

(B) 4 days

 (C) 5 days

(D) 8 days

17. The normal serum level of Ig M is

(A) 50 mg%

(B) 120 mg%

(C) 200 mg%

(D) 300 mg%

 18. The immunoglobulin associated with reginic antibody is

(A) Ig E

(B) Ig D

(C) Ig M

(D) Ig A

 19. The immunoglobulin having least concentration in serum is

(A) Ig A

(B) Ig M

(C) Ig D

(D) Ig E

20. The half life of Ig E protein is

(A) 1–6 days

(B) 2–8 days

(C) 10 days

(D) 20 days

 21. The immunoglobulin which provides highest antiviral activity is

(A) Ig D

(B) Ig E

(C) Ig A

(D) Ig G

 22. The half life of Ig A is

(A) 6 days

(B) 2–4 days

 (C) 5–10 days

(D) 12–20 days

 23. The normal serum level of Ig A is

(A) 100 mg%

(B) 200 mg%

(C) 300 mg%

(D) 400 mg%

24. Calcium is excreted by

(A) Kidney

(B) Kidney and intestine

(C) Kidney and liver

(D) Kidney and pancreas

25. A decrease in the ionized fraction of serum calcium causes

(A) Tetany

 (B) Rickets

(C) Osteomalacia

(D) Osteoporosis

26. A rise in blood calcium may indicate

(A) Paget’s disease

(B) Rickets

(C) Osteomalacia

(D) Hypervitaminosis D

27. The normal serum level of phosphorus in human adult is

(A) 1–2 mg

(B) 2–3 mg

(C) 3–4.5 mg

(D) 5–7 mg

28. An increase in carbohydrate metabolism is accompanied by temporary decrease in serum:

(A) Calcium

(B) Phosphate

(C) Iron

(D) Sodium

29. In rickets of the common low-phosphate variety, serum phosphate values may go as low as

(A) 1–2 mg/100 ml

(B) 2–3 mg/100 ml

(C) 3–4 mg/100 ml

(D) 4–5 mg/100 ml

 30. The normal serum level of phosphorous in children varies from

(A) 1–2 mg/100 ml

(B) 2–3 mg/100 ml

(C) 3–4 mg/100 ml

(D) 4–7 mg/100 ml

 31. An inherited or acquired renal tubular defect in the reabsorption of phosphate (Vit D resistant ricket) is characterized with

(A) Normal serum Phosphate

(B) High serum phosphate

(C) A low blood phosphorous with elevated alkaline Phosphate

(D) A high blood phosphorous with decreased alkaline phosphatase

32. The total magnesium content in gms of human body is about

(A) 5

(B) 10

(C) 15

(D) 21

 33. Iron is a component of

 (A) Hemoglobin

(B) Ceruloplasmin

(C) Transferase

(D) Transaminase

 34. Daily requirement of iron for normal adult male is about

(A) 5 mg

(B) 10 mg

(C) 15 mg

(D) 20 mg

35. The normal content of protein bound iron (PBI) in the plasma of males is

(A) 120–140 µg/100 ml

(B) 200–300 µg/100 ml

(C) 120–140 µg/100 ml

(D) 200–300 µg/100 ml

 36. In iron deficiency anemia

(A) The plasma bound iron is low

(B) The plasma bound iron is high

(C) Total iron binding capacity is low

(D) Both the plasma bound iron and total iron binding capacity are low

37. The total iron content of the human body is

(A) 400–500 mg

(B) 1–2 g

(C) 2–3 g

(D) 4–5 g

Answer

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