Biology MCQs with Answer (part 3) by General knowledge Solutions
Biology MCQs with Answer (part 3) by General knowledge Solutions
1. In hepatic diseases
- (A) Both the bound iron and total iron binding capacity of the plasma may be low
- (B) Both the bound iron and total iron binding capacity of the plasma may be high
- (C) Only bound iron may be high
- (D) Only the total iron binding capacity may be high
2. The recommended daily requirement of iron for women of
18–55 yrs age is
- (A) 5 mg
- (B) 8 mg
- (C) 10 mg
- (D) 15 mg
3. The percent of total iron in body in hemoglobin is
- (A) 10–20
- (B) 20–30
- (C) 30–40
- (D) 60–70
4. A hypochromic microcytic anemia with increased iron
stores in the bone marrow may be
- (A) Iron responsive
- (B) Pyridoxine responsive
- (C) Vitamin B12 responsive
- (D) Folate responsive
5. A good source of iron is
- (A) Spinach
- (B) Milk
- (C) Tomato
- (D) Potato
6. The best source of
iron is
- (A) Organ meats
- (B) Milk
- (C) Tomato
- (D) Potato
7. An increased serum iron and decreased iron binding
capacity is found in
- (A) Fe deficiency anemia
- (B) Sideroblastic anemia
- (C) Folate deficiency anemia
- (D) Sickle cell anemia
8. The absorption of
iron is increased 2–10 times of normal in
- (A) Iron deficiency anemia
- (B) Pregnancy
- (C) Spherocytosis
- (D) Sickle cell anemia
9. Iron is mainly
absorbed from
- (A) Stomach and duodenum
- (B) Ileum
- (C) Caecum
- (D) Colon
10. The iron
containing nonporphyrin is
- (A) Hemosiderin
- (B) Catalase
- (C) Cytochrome C
- (D) Peroxidase
11. Molecular iron is
- (A) Stored primarily in the spleen
- (B) Exreted in the urine as Fe2+
- (C) Stored in the body in combination with ferritin
- (D) Absorbed in the ferric form
12. In
hemochromatosis, the liver is infiltrated with
- (A) Iron
- (B) Copper
- (C) Molybdenum
- (D) Fats
13. An acquired
siderosis-Bantu siderosis is due to
- (A) Foods cooked in iron pots
- (B) Diet high in phosphorous
- (C) Diet high in calcium
- (D) High fat diet
14. The amount of copper in the human body is
(A) 50–80 mg
(B) 100–150 mg
(C) 400–500 mg
(D) 500–1000 mg
(B) 100–150 mg
(C) 400–500 mg
(D) 500–1000 mg
15. The amount of copper in muscles is about
- (A) 10 mg
- (B) 30 mg
- (C) 64 mg
- (D) 100 mg
16. The amount of copper in bones is about
- (A) 5 mg
- (B) 10 mg
- (C) 15 mg
- (D) 23 mg
17. The normal serum of concentration of copper in mg/100 ml
varies between
- (A) 0–5
- (B) 50–100
- (C) 100–200
- (D) 200–300
18. The normal serum
concentration of ceruloplasmin in mg/100 ml varies between
- (A) 5–10
- (B) 10–20
- (C) 25–43
- (D) 50–100
19. Recommended daily dietary requirement of copper for
adults is
- (A) 0.5–1 mg
- (B) 1.5–3.0 mg
- (C) 3.5–4.5 mg
- (D) 4.5–5.5 mg
20. The richest source of copper is
- (A) Liver
- (B) Milk
- (C) Legumes
- (D) Green leafy vegetables
21. The cytosolic
superoxide dismutase enzyme contains
- (A) Cu2+
- (B) Cu2+ and Zn2+
- (C) Zn2+
- (D) Mn2+
22. The deficiency of
copper decreases the activity of the enzyme:
- (A) Lysine oxidase
- (B) Lysine hydroxylase
- (C) Tyrosine oxidase
- (D) Proline hydroxylase
23. Wilson’s disease is a condition of toxicosis of
- (A) Iron
- (B) Copper
- (C) Chromium
- (D) Molybdenum
24. In Wilson’s disease
- (A) Copper fails to be excreted in the bile
- (B) Copper level in plasma is decreased
- (C) Ceruloplasmin level is increased
- (D) Intestinal absorption of copper is decreased
25. Menke’s disease is due to an abnormality in the
metabolism of
- (A) Iron
- (B) Manganese
- (C) Magnesium
- (D) Copper
26. Menke’s disease (Kinky or steel hair disease) is a
X-linked disease characterized by
- (A) High levels of plasma copper
- (B) High levels of ceruloplasmin
- (C) Low levels of plasma copper and of ceuloplasmin
- (D) High level of hepatic copper
27. The trace element
catalyzing hemoglobin synthesis is
- (A) Manganese
- (B) Magnesium
- (C) Copper
- (D) Selenium
28. The total body content of manganese is about
- (A) 2 mg
- (B) 4 mg
- (C) 8 mg
- (D) 10 mg
29. In blood the
values of manganese in µg / 100 ml varies between
- (A) 0–4
- (B) 2–4
- (C) 3–5
- (D) 4–20
30. The adequate daily dietary requirement of manganese is
- (A) 1–2 mg
- (B) 2–5 mg
- (C) 5–10 mg
- (D) 10–20 mg
31. Mitochondrial
superoxide dismutase contains
- (A) Zinc
- (B) Copper
- (C) Magnesium
- (D) Manganese
32. Mitochondrial
pyruvate carboxylase contains
- (A) Zinc
- (B) Zinc
- (C) Manganese
- (D) Magnesium
33. The adequate
daily dietary requirement of molybdenum for normal human adult is
- (A) 10–20 µg
- (B) 25–50 µg
- (C) 50–70 µg
- (D) 75–200 µg
34. In human beings molybdenum is mainly absorbed from
- (A) Liver
- (B) Kidney
- (C) Intestine
- (D) Pancreas
35. In human beings
molybdenum is mainly excreted in
- (A) Feces
- (B) Sweat
- (C) Urine
- (D) Tears
36. Molybdenum is a
constituent of
- (A) Hydroxylases
- (B) Oxidases
- (C) Transaminases
- (D) Transferases
37. Safe and adequate
daily dietary intake of chromium in adults in mg is
- (A) 0.01–0.02
- (B) 0.02–0.03
- (C) 0.03–0.04
- (D) 0.05–0.2
38. Richest source of chromium is
- (A) Brewer’s yease
- (B) Milk and milk products
- (C) Yellow vegetables
- (D) Green vegetables
39. Metallic constituent of “Glucose tolerance factor” is
- (A) Sulphur
- (B) Cobalt
- (C) Chromium
- (D) Selenium
40. Intestinal absorption of chromium is shared with
- (A) Mn
- (B) Mg
- (C) Ca
- (D) Zn
41. Serum level of
chromium in healthy adult is about
- (A) 2-5 µg/100 ml
- (B) 6-20 µg/100 ml
- (C) 30-60 µg/100 ml
- (D) 50-100 µg/100 ml
42. Chromium is potentiator of
- (A) Insulin
- (B) Glucagon
- (C) Thyroxine
- (D) Parathromone
43. Recommended daily dietary allowance of selenium for
adult human in µg is
- (A) 20
- (B) 40
- (C) 50
- (D) 70
1. A 2. D 3. D 4. B 5. A 6. A 7. B 8. A 9. A 10. A 11. C 12.
A 13. A 14. B 15. C 16. D 17. C 18. C 1. C 20. A 21. B 22. A 23. B 24. A 25. D 26.
C 27. C 28. D 29. D 30. B 31. D 32. C 33. D 34. C 35. C 36. B 37. D 38. A 39. C
40. D 41. B 42. A 43. D
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