Question

Which of the following statements are correct?
(A) Some types of lipids play critical roles as cofactors or signals.
(B) Prostaglandins are derived from arachidonate.
(C) Steroid hormones are derived from sterols.
(D) Vitamins D, A, and E are fat-soluble.
Choose the correct answer from the options given below:

• A. (A), (B) and (D) only
• B. (A), (B) and (C) only
• C. (A), (B), (C) and (D)
• D. (B), (C) and (D) only

Hint:

Fat-soluble vitamins (D, A, E, K) and steroid hormones share lipid-related origins.

Answer 1

The Correct Option is C

- (A) Correct: Phosphatidylinositol derivatives, a class of lipids, function as cofactors or signaling molecules.
- (B) Correct: Arachidonic acid, a polyunsaturated fatty acid, serves as the precursor for prostaglandins.
- (C) Correct: Cholesterol (asterol) is the source of steroid hormones such as cortisol and testosterone.
- (D) Correct: Fat-soluble vitamins D, A, E, and K accumulate in body fat.