In a taste bud, depolarisation of the receptor cell by salt is caused by

  1. K⁺ leaving
  2. acetylcholine
  3. Na⁺ ions entering through channels
  4. glucose binding
Answer

C) Na⁺ ions entering through channels

Na⁺ entry produces a receptor potential. AS & A Level Biology · Topic 15 Control and Coordination · 15.1 Control and coordination in mammals

Biology MCQ · More A Level Biology: Control and coordination MCQs · Practise