set 3 MCQ Questions & Answers Detailed Explanation

Question : 1

Neurons receive signals through their __________ and send signals to other neurons through their __________.

a) end feet ... cell bodies and dendrites

b) dendrites ... receptors

c) cell bodies and dendrites ... axons

d) transmitter vesicles ... axons

Question : 2

The force responsible for upward conduction of water against gravity comes from

a) translocation

b) respiration

c) transpiration

d) photosynthesis

Question : 3

Consider the following statements :

1. They are small, cylindrical, branched and the fibers have broad ends.
2. Special electrical junctions called “intercalated discs” are present at intervals in the fibers.
3. The muscles show undergo contractions.
4. They are involuntary muscle fibers. They are not under the control of one’s will.

a) 1, 2 and 3

b) 2 and 4

c) 1 and 2

d) 1, 2, 3 and 4

Question : 4

The temperature of a normal human body is

a) 98° F

b) 98.8° F

c) 98.4° F

d) None of these

Question : 5

Main function of lenticel is

a) guttation

b) transpiration

c) gaseous exchange

d) both (a) & (c)

Question : 6

Due to accumulation of which one of the following, joggers experience pain in their leg muscles after running?

a) Acetic acid

b) Lactic acid

c) Malic acid

d) Citric acid