The cell membranes in skeletal muscle
A. Are impermeable to fat-soluble substances.
B. Are more permeable to sodium than to potassium ions.
C. Become more permeable to glucose in the presence of insulin.
D. Become less permeable to potassium in the presence of insulin.
E. Show invaginations which connect to a system of intracellular tubules involved in excitation contraction coupling.
Pramiti Kumari Answered question August 18, 2024
The correct answer is:
(E) Show invaginations which connect to a system of intracellular tubules involved in excitation-contraction coupling.
In skeletal muscle cells, the cell membrane has invaginations known as T-tubules (transverse tubules) that are connected to the sarcoplasmic reticulum and play a crucial role in excitation-contraction coupling.
Pramiti Kumari Answered question August 18, 2024