Can someone please please help me with these two questions. Which of the following could be...
Can someone please please help me with these two questions.
Which of the following could be explained by sandwich model of cell membranes?
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A. Membrane width |
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B. Digestion by Phospholipases |
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C. Difficulty of membrane protein isolation |
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D. Lower surface tension of cell membranes |
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E. Variability of protein to lipid ration of membranes from different cells |
Which of the following will have lowest Tm?
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A. Membranes made up of pure phospholipids comprising 16C long unsaturated Fatty acids |
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B. Membranes made up of pure phospholipids comprising 16C long saturated Fatty acids |
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C. Membranes made up of pure phospholipids comprising 14C long saturated Fatty acids |
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D. Membranes made up of pure phospholipids comprising 18C long unsaturated Fatty acids |
Homework Answers
1. D. Lower surface tension of cell membranes
Sandwich model proposed by Danielli and Harvey accounted for lower surface tension of cell membranes
2. A. Membranes made up of pure phospholipids comprising 16C long unsaturated Fatty acids
Unsaturated fatty acids have a lower Tm than saturated fatty acids.
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