Phospholipids arrange themselves in a double layer in the presence of water in the………
a) cell wall
b) cytoplasm
c) plasma membrane
d) animal fat and plant oil
Waxes are formed by long chain fatty acid bonded to……..
a) carboxyl group
b) long chain alcohol
c) amino group
d) benzyl group
Explanation: waxes are solid at room temperature because of high melting point
Which of the following class of lipids form a waterproof layer on the surfaces of some plant parts such as leaves?
a) acylglycerol
b) phospholipids
c) waxes
d) steroids
Steroids are lipids that do not contain…
a) carbon
b) hydrogen
c) carbon rings
d) fatty acids
Each steroid is formed of a backbone of …….fused carbon rings containing 17 carbon atoms.
a) two
b) three
c) four
d) five
Cholesterol
is the important representative example of the………
a) Terpenoids
b) phospholipids
c) waxes
d) steroids
