Answer:
they are Na+, K+ and Ca2+ ion channels.
Explanation:
Ionotropic acetylcholine receptors are also called nicotinic acetylcholine receptors because beside acetylcholine (Ch) they respond to nicotine. These receptors are primary receptors in muscle for motor nerve-muscle communication that controls muscle contraction.
Two molecules of ACh are required for receptor to open. Since the receptors are linked to ion channels, the channels open. Opening of the channel allows positively charged ions to move across it: sodium enters the cell and potassium exits.
Your answer is Archea bacteria
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Answer: The plasma membrane is an extremely pliable structure composed of 2 layers of back-to-back phospholipids (a “bi-layer”). Cholesterol is also present between the phospholipids, which contributes to the fluidity of the membrane. There are various proteins embedded within the membrane that have a variety of functions.
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