Question 7 :
<b>Assertion (A)</b>: Arival of an impulse at the axon terminal stimulates the release of neurotransmitters in synaptic cleft. <br><b>Reason (R)</b>: These neurotransmitters are responsible for the opening of ion channels.

Question 10 :
<p>During hemodialysis process</p><p>I. blood drained from a convenient artery and anticoagulant is added (heparin)</p><p>II. removal of nitrogenous waste from blood</p><p>III. blood is passed through a coiled porous cellophane membrane of tube bathing in dialysis fluid</p><p>IV. blood is mixed with antiheparin and passed into vein</p><p>Arrange the steps</p>