Get premium membership and access revision papers with marking schemes, video lessons and live classes.
  OR
Processing. Please wait.

 Form 1 Biology topical questions and answers on the cell

The diagram below illustrates a specialized cell obtained from a certain tissue.
figcell19620201426.JPG
(a) Name the cell.
(b) State two ways in which the cell is structurally adapted to its function.

 (3m 21s)
1113 Views     SHARE

Download as pdf file

Answer Text:
a)- Neuron/ motor neuron
b)- The cell body has extensions (axon,Dendron,dendrites) for impulse transmission.
- The cell has nucleus to control cell activities
- The axon is enclosed by a myelin sheath that insulate the axon and prevent loss of impulse.
- Presence of schwann cell that secretes the myelin sheath
- Myelin sheath has nodes of Ranvier to propagate the nerve impulse and speed up the transmission of the impulse.


|