Q1. Fish respire through their—
(a) nose
(b) lungs
(c) gills
(d) fins
Ans.(c)
Q2. The artificial kidney operates on the principle of—
(a) diffusion
(b) osmosis
(c) dialysis
(d) active transport
Ans.(c)
Q3. The average heart beat per minute in a normal man is—
(a) 50
(b) 70
(c) 80
(d) 100
Ans.(b)
Q4. Bones are mainly made up of—
(a) calcium and phosphorus
(b) calcium and sulphur
(c) calcium and magnesium
(d) calcium and iron
Ans.(a)
Q5. How many bones are there in a newly born infant?
(a) 206
(b) 230
(c) 280
(d) 300
Ans.(d)
Q6. Fertilisation in frogs is—
(a) external
(b) internal
(c) both external and internal
(d) aerial
Ans.(a)
Q7. The plant hormone that induces cell division is—
(a) Auxins
(b) Gibberellins
(c) Cytokinin
(d) Domains
Ans.(c)
Q8. The medulla oblongata is a part of human—
(a) heart
(b) brain
(c) liver
(d) sex organ
Ans.(b)
Q9. Sense of smell is perceived by—
(a) pituitary
(b) hypothalamus
(c) olfactory lobe
(d) cerebrum
Ans.(c)
Q10. Acquired Immune-Deficiency Syndrome (AIDS) is caused by—
(a) bacterium
(b) protozoa
(c) fungus
(d) virus
Ans.(d)
Q11. Disease caused by deficiency of vitamin-C is—
(a) beriberi
(b) scurvy
(c) pellagra
(d) night blindness
Ans.(b)
Q12. Kwashiorkor and beriberi are—
(a) communicable diseases
(b) infectious diseases
(c) deficiency diseases
(d) none of these
Ans.(c)
Q13. Myopia is connected with the—
(a) ears
(b) eyes
(c) lungs
(d) none of these
Ans.(b)
Q14. Test tube baby means
(a) ovum fertilised and developed in test tubes
(b) ovum fertilised in test tubes and developed in test tubes
(c) ovum fertilised in test tubes and developed in the uterus
(d) ovum developed without fertilisation in test tubes
Ans.(c)
Q15. When dust gets into the eye, the part that becomes inflamed and pink is the
(a) cornea
(b) choroids
(c) conjunctiva
(d) sclerotic
Ans.(c)
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