K.C.S.E Biology Q & A - MODEL 2019PP1QN03

K.C.S.E Biology Q & A - MODEL 2019PP1QN03

The diagram below illustrates a specialised cell obtained from a certain tissue.

​(a) Name the cell. 
(b) State two ways in which the cell is structurally adapted to its function. 

answers

(a) nerve cell/motor neuron; acc neuron
(b) longer axon to transmit impulses/delivers action potential along way;  has numerous dendrites for receiving/delivering /transmitting impulse; myelin sheath for faster transmission of impulse/insulation of axon; Schwan cell for secretion of myelin sheath; node of ranvier to enhance speed of transmission of impulse; cell body has nucleus for controlling nerve impulse transmission.