Question

8. Which of the following statements about phospholipids is true? a. A phospholipid may have a net neutral charge. b. To make a phospholipid from a triglyceride one must simply remove two fatty acid tails from the triglyceride and add a phosphate group and a head group instead. c. The shorter the fatty acid tails of phospholipids that make up a plasma membrane, the less permeable the membrane will be. d. A phospholipid’s amphipathic nature means it has a negative end and a positive end. e. None of the above

Answer 1

the phospholipid, contains two fatty acids and a phosphat group attached to a glycerol. they are amphipathic in nature means they have both hydrophilic and hydrphobic groups.

so option

A. wrong because phosphate have charge and fatty acids are neutral. some phospholipids like shingomylin are neutral.

B. B is wrong because one fatty acid is removed and a phosphate is attached.

C. false shorter fatty acids make the membrane more fluid.

D. wrong because amphipathic molecule have both polar and non polar groups.