T-tubules

  1. store ATP
  2. release acetylcholine
  3. connect sarcomeres
  4. carry depolarisation deep into the muscle fibre
Answer

D) carry depolarisation deep into the muscle fibre

Infoldings of the sarcolemma. 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