5.1 - 2016 January Q8
(a) The diagram shows a sensory neurone attached to part of a sense organ.
(i) On the diagram, write the names of the structures W, X, Y and Z. (4)
(ii) State the function of structures W, X, Y and Z. (4)
(b) Neurones transmit impulses around the body. The table lists three types of neurone. Complete the table by giving the missing information. (3)
(ii) State the function of structures W, X, Y and Z. (4)
- W ..............................................................
- X ..............................................................
- Y ..............................................................
- Z ..............................................................
(b) Neurones transmit impulses around the body. The table lists three types of neurone. Complete the table by giving the missing information. (3)
(c) The diagram shows a microscopic gap between two different neurones.
(i) Name the microscopic gap shown in the diagram. (1)
(ii) Describe how an electrical impulse reaching the end of neurone A can produce an impulse in neurone B. (3)
(ii) Describe how an electrical impulse reaching the end of neurone A can produce an impulse in neurone B. (3)