Biology 9700 · AS & A Level · Control and coordination in mammals

Control and coordination in mammals — practice question

(a)[9]

Describe the way a resting potential is kept in an axon.

(b)[6]

Describe, with named examples, how sensory receptors in mammals produce action potentials.

Worked solution & mark scheme

This 15-mark question has a full step-by-step worked solution and mark scheme. One marking point: Axon membrane is relatively impermeable to $Na^+$ and $K^+$

  • Full mark scheme, point by point
  • Step-by-step worked solution
  • Write your answer & get it marked instantly by AI