Coordination and control in animals Assignment

Assay question

43. (a) Draw a fully labelled diagram of a neurotransmitter junction

(b) Explain how the impulse are transmitted across the junction in (a) above (c) How is the transmission across the synapse controlled?

44. (a) Explain the following processes involved in transmission of impulses along a neuron

(i) The formation of the resting potential

(ii) The formation and transmission of an action potential

(b) How does a retina transduce light energy into a nerve impulse