Biology MCQs with Answer by General knowledge Solutions
Biology MCQs with Answer by General knowledge Solutions
1. Cobalt is
essential component of
(A) Vitamin B1
(B) Vitamin B6
(C) Vitamin B12
(D) All of these
2. Iodine is required
in human body for
(A) Formation of thyroxine
(B) Formation of Glutathione
(C) Formation of potassium iodide
(D) Adrenalin
3. A hypochromic
necrocytic anaemia with increase Fe stores in the bone marrow may be
(A) Folic acid responsive
(B) Vitamin B12 responsive
(C) Pyridoxine responsive
(D) Vitamin C responsive
4. A deficiency of copper effects the
formation of normal collagen by reducing the activity of which of the following
enzyme?
(A) Prolyl hydroxylase
(B) Lysyl oxidase
(C) Lysyl hydroxylase
(D) Glucosyl
transferase
5. Molecular iron
(Fe) is
(A) Stored primarily in spleen
(B) Absorbed in the intestine
(C) Absorbed in the ferric, Fe+++ form
(D) Stored in the body in combination with ferritin
6. All the following
statements regarding calcium are correct except
(A) It diffuses as a divalent cation
(B) It freely diffuses across the endoplasmic reticulum of
muscle cells
(C) It can exist in the blood as ionic form and also protein
bound
(D) It is found in high concentration in bones
7. Iron is absorbed
from
(A) Stomach
(B) Duodenum and jejunum
(C) Ileum
(D) Noen of the above
8. The normal route of calcium excretion is
(A) Kidney
(B) Kidney and Liver
(C) Kidney and Intestine
(D) Kidney, Intestine and Pancreas
9. Hypocalcaemia
affects
(A) Skeletal muslces
(B) Smooth muscles
(C) Cardiac muscles
(D) Skeletal muscles + smooth muscles + cardiac muscles
10. Transferrin is a
type of
(A) Albumin
(B) α-globulin
(C) β1 globulin
(D) γ-globulin
11. In case of
wilson’s disease, the features include all of the following except
(A) Progressive hepatic cirrhosis
(B) Keyser Fleisher ring
(C) Aminoaciduria
(D) Urinary excretion of Cu is decreased
12. In Vitamin D poisoning (hyper-vitaminosis)
(A) Both serum and urinary “Ca”
(B) The serum Ca is low and urinary calcium high
(C) The serum “Ca” is increased and urinary “Ca” is normal
(D) Both serum and urinary “Ca” are low
13. The % of ‘K’ in
Extracellular fluid is about
(A) 1%
(B) 2 to 3%
(C) 10%
(D) 15%
14. The Fe containing
pigments is
(A) Haematoidin
(B) Bilirubin
(C) Hemasiderin
(D) Urobilinogen
15. All of the following are true of Wilson’s
disease except
(A) Low total plasma Cu
(B) Elevated urinary copper
(C) Arthritis
(D) Aminoaciduria
16. An increased serum ‘Iron’ and decreased
‘Fe’ binding capacity are found in
(A) Fe-deficiency anaemia
(B) Sideroblastic anaemia
(C) Thalassaemia
(D) Anaemia of chromic disorders
17. Iron therapy is ineffective in which of
the following conditions:
(A) Chronic blood loss
(B) Inadequate Fe intake
(C) Hypochromic anaemia of pregnancy
(D) Thalassaemia minor
18. In hoemochromatosis, the liver is
infiltrated with
(A) Copper
(B) Iron
(C) Manganese
(D) Chromium
19. Which of the following is true?
Hypochromic anaemia is not due to iron deficiency except
(A) Serum ‘Fe’ is high
(B) Normal/low transferrin
(C) Stainable iron in bone marrow
(D) Iron therapy is affective
20. Cytosolic superoxide dismutase contains
(A) Zn only
(B) Cu only
(C) Zn and Cu
(D) Mn
21. A rise in blood
‘Ca’ may indicate
(A) Paget’s disease
(B) Vitamin D deficiency
(C) Cushing’s disease
(D) Hypervitaminosis D
22. The essential
trace element which catalyzes the formation of Hb in the body is
(A) Mn
(B) Se
(C) Mg
(D) Cu 3
23. Zinc is a
constituent of the enzyme:
(A) Succinate
dehydrogenase
(B) Carbonic anhydrase
(C) Mitochondrial superoxide dismutase
(D) Aldolase
24. The active
transport of ‘Ca’ is regulated by __________ which is synthesized in kidnyes.
(A) Cholecalciferol
(B) Ergosterol
(C) 25-OH cholecalciferol
(D) 1, 25-di OH-Cholecalciferol
25. Ceruloplasmin
shows the activity
(A) As ferroxidase
(B) As reductase
(C) As ligase
(D) As transferase
26. The principal cation of extra cellular
fluid:
(A) K+
(B) Na+
(C) H+
(D) Ca2+
27. What is the
principal cation of intracellular fluid?
(A) K+
(B) Na+
(C) Ca2+
(D) Mg2+
28. What is the
normal level of K+ in the serum ?
(A) 137–148 mEq/L
(B) 120–160 mEq/L
(C) 3.9–5.0 mEq/L
(D) 0.3–0.59 mEq/L
29. The general functions of minerals are
(A) The structural components of body tissues
(B) In the regulation of body fluids
(C) In acid-base balance
(D) All of these
30. What are the functions of potassium?
(A) In muscle contraction
(B) Cell membrane function
(C) Enzyme action
(D) All of these
31. The daily requirement of calcium is
(A) 200 mg
(B) 400 mg
(C) 800 mg
(D) 600 mg
32. The normal serum
inorganic phosphorous level is
(A) 1.5–2.5 mg/100 ml
(B) 2.5–4.5 mg/100 ml
(C) 4.5–6.5 mg/100 ml
(D) 0.5–1.5 mg/100 ml
33. When phosphorous level is lowered ?
(A) In hyper thyroidism
(B) Cirrosis of liver
(C) Leukemia
(D) Hypothyroidism
34. Ferritin is
(A) Coenzyme
(B) One of the component of photophosphorylation
(C) It is the stored form of iron
(D) Non-protein moiety
35. What is
ceruloplasmin?
(A) Plasma protein
(B) Stored form of copper
(C) Both A and B
(D) None of these
36. The following are
the functions of copper:
(A) Constituent of cytochromes
(B) Catalase
(C) Tyrosinase
(D) All of these
37. Zn is present as
prosthetic group in this enzyme:
(A) Carbonic anhydrase
(B) Carboxy peptidase
(C) Lactate dehydrogenase
(D) All of these
38. Fluorosis is caused due to
(A) Excessive intake of fluorine
(B) Low intake of fluorine
(C) Discoloration of the teeth due to low intake
(D) All of these
39. What is the state
of iron in transferrin?
(A) Ferrous form
(B) Ferric form
(C) Both A and B
(D) None of these
40. Haemoglobin
formation needs both
(A) Iron and Zinc
(B) Iron and Calcium
(C) Iron and Copper
(D) Iron and Magnesium
Answer:
1. C 2. A 3. C 4. B 5. D 6. B 7. B 8. C 9. D 10. B 11. D 12.
A 13. A 14. C 15. C 16. B 17. D 18. B 19. D 20. C 21. D 22. D 23. B 24. D 25. A
26. B 27. A 28. C 29. D 30. D 31. C 32. B 33. A 34. C 35. C 36. D 37. D 38. A 39.
B 40. C
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