Na⁺/K⁺ pump is associated with

1. passive transport

2. active transport

3. osmosis

4. imbibition.

The release of chemical messenger from synaptic vesicles is under the influence of these ion(s)
(1) CI^-

(2) Fe⁺⁺ and S⁺⁺

(3) Ca⁺⁺

(4) Mg⁺⁺ and Sr⁺⁺

Which of the following is correctly labelled?
(1) A: Reissner's membrane

(2) B:Scala vestibuli

(3) C: Basilar membrane

(4) D: Tectorial membrane

Hearing impairment affects which part of brain?

(1) Frontal lobe

(2) Parietal lobe 

(3) Temporal lobe

(4) Cerebellum

Which of the following nerves arises from organ of Corti?
(1) Olfactory nerve

(2) Cochlear nerve

(3) Abducens nerve

(4) None of these

One common example of simplex reflex is 
(1) tying your shoe laces while talking to another person and not looking at them 

(2) watering of mouth at the sight of a favourite food 

(3) climbing up a stairs in dark without stumbling

(4) closing of eyes when strong light is flashed across them.

If medulla oblongata is destroyed then which of the following functions wil be effected ?
(1) No thermoregulation

(2) No vision

(3) No memory

(4) No response when pricked with needle

Injury to vagus nerve in humans is not likely to affect
(1) tongue movements

(2) gastrointestinal movements

(3) pancreatic secretion

(4) cardiac movements.

The black pigment in the eye which reduces the internal reflection is located in

(a) retina

(c) cornea

(b) iris

(d) sclerotic.