Topic 2: Knowledge Check Answers
1. Which sentence is true?
Correct answer: A. Membranes are composed of lipids arranged in a lipid bilayer, with the hydrophilic glycerol and phosphate “head” groups of the lipid molecules forming the two outside layers and the hydrophobic “tail” groups arranged inside.
2. Histones are proteins present in the nucleus of the cells with the function of:
Correct answer: A. Interact with the DNA to form nucleosomes.
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