PHYSIOLOGY
SYNAPTIC PHYSIOLOGY
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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I only
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II only
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III only
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I, II and III
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Detailed explanation-1: -Cholesterol is also a key determinant of membrane fluidity: at high temperatures, cholesterol acts to stabilize the cell membrane and increase its melting point; while at low temperatures, it inserts into phospholipids and prevents them from interfering with each other to avoid aggregation [39].
Detailed explanation-2: -Fluidity is due to presence of proteins.
Detailed explanation-3: -Cholesterol influences the fluidity of the membrane, and it does so in a bidirectional manner; at high temperatures it decreases fluidity and at low temperatures it increases fluidity. At high temperatures, cholesterol’s flat, rigid structure limits phospholipid movement.
Detailed explanation-4: -So, the correct answer is ‘It stabilizes the cell membrane’