1. Which statement is accurate/true about cholesterol? a. It is completely hydrophobic. b. It is extremely rare in eukaryotic plasma membranes, in a 1:1000 ratio with phospholipids. c. It is highly abundant in eukaryotic plasma membranes, in nearly a 1:1 ratio with phospholipids. d. It has a flexible steroid ring structure attached to a hydrocarbon tail that is longer than most phospholipid tails 2. What are liposomes? a. Specific sites in the endoplasmic reticulum where phospholipids are synthesized b. Spherical aggregations of non-ionic detergent c. Synthetic/ artificial and spherical lipid bilayers d. Derived from the endoplasmic reticulum after homogenization 3. Plasma membranes from different types of cells have the same phospholipid composition. a. True b. False 4. Lipid bilayers can form domains/regions of different compositions. a. True b. False 5. Each monolayer in a lipid bilayer has the same phospholipid composition a. True b. False
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Step 2: Liposomes are synthetic/artificial and spherical lipid bilayers. Step 3: Plasma membranes from different types of cells do not have the same phospholipid composition. Step 4: Lipid bilayers can form domains/regions of different compositions. Step 5: Show more…
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