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All living things need to have cells before they are said to be living. this is because the cell is the basic unit of life.
Answer:
The correct statements are B, D and F
Explanation:
The following statements that correctly describes T tubules and their role in conducting action potentials in muscle cells are;
i) T tubules are infoldings of the plasma membrane that encircle the myofibrils and are in contact with the sarcoplasmic reticulum.
ii) T tubules carry action potentials into the interior of the muscle cell via voltage-gated Na+ and K+ channels.
iii) Without T tubules, the muscle cell would not be able to contract.
