Cameroon GCE A-Level Biology Practice Questions - Cameroon General Certificate Of Education Advanced Level Biology (Subject Code 0710) Exam

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According to the fluid mosaic model proposed by Singer and Nicolson, what maintains the structural fluidity of the eukaryotic plasma membrane at low temperatures?

Cholesterol molecules preventing close packing of phospholipid fatty acid tails Integral transmembrane glycoproteins forming rigid covalent bridges High proportions of fully saturated fatty acid chains within phospholipids Peripheral proteins anchoring cytoskeletal microfilaments to extracellular carbohydrates

Correct Answer:

Cholesterol molecules preventing close packing of phospholipid fatty acid tails

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