Question

question 22
which of the following statements about lipids is true?
a lipids are composed of carbon, hydrogen, oxygen, and nitrogen.
b lipids are not essential nutrients.
c lipids are freely soluble in water.
d lipids are hydrophobic.

Explanation:

• Option A: Lipids are composed of carbon, hydrogen, and oxygen (not nitrogen). So this option is incorrect.
• Option B: Lipids are essential nutrients (e.g., certain fatty acids are essential). So this option is incorrect.
• Option C: Lipids are hydrophobic (water - fearing) and not freely soluble in water. So this option is incorrect.
• Option D: Lipids are hydrophobic. This is a correct property of lipids.

Answer:

D. Lipids are hydrophobic.