Question

A triacylglycerol consists of _______ and ______ fatty acids. A glycerophospholipid is different in that it also consists of _______ but has ______ fatty acids. The hydroxyl group on its ______ carbon is attached by a phosphate bond to _______, which is attached by a phosphate ester bond to an ionized amino alcohol.

Answer 1

Answer:

1. Glycerol

2. Three

3. Bilayer membrane

4. diglyceride

5. 1 and 2 (C1 and C2)

6. C3

Explanation:

A triglyceride is defined as an ester which consists of glycerol and three fatty acids.

Glycerophospholipid are different from triglyceride as they are also consist of the membrane bilayer, which make a tough cell membrane and help them to hold the definite shape. Glycerophospholipids carry two or diglyceride fatty acid.

Hydroxyl group in glycerophospholipid is present in C1 and C2 and a phosphate group is attached at C3 (Carbon-3) with phosphodiester bond.

Hence, the correct answers are:

1. Glycerol

2. Three

3. Bilayer membrane

4. diglyceride

5. 1 and 2 (C1 and C2)

6. C3