Biology Multiple Choice Questions and Answers for Different Competitive Exams

Human Biology Multiple Choice Questions

1. Hunger centre is in
Hunger centre
a) medulla oblongata
b) hypothalamus
c) pons varolii
d)None of these

2. Which nerves transmit impulses towards central nervous system?
a) auditory nerves
b) abducens nerves
c) ventral root of spinal verves
d) Oculomotor nerves

3. Receptors of pressure present in deep layers of skin are
a) Corpulscles of Ruffini
b) Meissner's corpuscles
c) Krause's end bulb
d)Pacinian corpuscles

4. Pseudopregnancy is due to
a) polyembryony
b) absence of fertilization after ovulation
c) hormonal disturbances
d) all of the above

5. Sella turcica is
a) depression of long bone
b) ridge over a bone
c) depression in the skull in the area of pituitary gland
d) ridge in the skull over the area of pituitary gland

6. Clinical fever in malaria is due to
a) eythrocytic gametogony
b) erthrocytic schigony
c) pre-erthrocytic schizogony
d) exo-erthrocytic schiogony

7. Remarkable fall in  blood pressure affects the normal function of kidneys reducing
a) secretion of nitrogenous wastes
b) renal filtration
c) reabsorption of useful substances
d) none of the above

8. Absolute refractory period of heart is
a) during contraction when the heart is non responding period
b) during expansion
c) during negative charge
d)during positive charge

9. Frenulum is
a) adenoid present on pharygeal wall
b)tonsil found on lateral wall of soft palate
c) V shaped sulus dividing tongue into pharygeal and oral parts
d) fold attaching tongue

10. Atlas vertebra of man is characterised by the presence of
a) preceolous centrum
b) amphicoelous centrum
c) acoelous centrum
d)absence of centrum
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Answers
1. b)hypothalamus
2. a) auditory nerves
3. d)Pacinian corpuscles
4. c) hormonal disturbances
5. c) depression in the skull in the area of pituitary gland
6. b) erthrocytic schigony
7. b) renal filtration
8. a) during contraction when the heart is non responding period
9.d)fold attaching tongue
10.d)absence of centrum
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