Cholesterol is a type of lipid that helps keep cell membranes fluid rather than stiff.What aspect of a cholesterol molecule's structure helps it fulfill this role?A.It contains two hydrocarbon chains that attract water and a phosphate group that repels water.B.Its straight structure packs tightly with the straight hydrocarbon chains of other membrane lipids.C.Its slight bend keeps the straight hydrocarbon chains of other membrane lipids from packing together.D.It contains two hydrocarbon chains that repel water and a phosphate group that attracts water.SUBMITarrow_backPREVIOUS

What is cholesterol? A) A lipid with a tetracyclic structure B) A glycolipid with a linear structure C) A triglyceride D) A saturated fatty acid E) A lipoprotein

Role of cholesterol in the cell membrane.Question 3Answera.Integrity b.Fluidityc.Adhesion d.Signaling

Cell membrane has a lipid component that helps to regulate fluidity of membrane. This component is:Select one:a. Cephalinb. Sphingomyelinc. Lecithind. Cholesterol

2. Cholesterol is an important component of cell membranes, yet high levels of circulating cholesterol are associated with an increased risk of coronary heart disease. a. Summarise the mechanisms that control cholesterol biosynthesis. b. Why do bile sequesterants help to reduce levels of circulating cholesterol?

Cholesterol travels the bloodstream as part of what macromolecule?