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Following are the statements with reference to 'lipids'.

(a) Lipids having only single bonds are called unsaturated fatty acids.

(b) Lecithin is a phospholipid.

(c) Trihydroxy propane is glycerol.

(d) Palmitic acid has 20 carbon atoms including carboxyl carbon.

(e) Arachidonic acid has 16 carbon atoms.

Choose the correct answer from the options given below.

Option: 1

(a) and (b) only

Option: 2

(c) and (d) only

Option: 3

(b) and (c) only

Option: 4

(b) and (e) only

Answers (1)

  • Statement (b) is correct. Lecithin is indeed a phospholipid.
  • Statement (c) is also correct. Trihydroxy propane is another name for glycerol, which is a common component of lipids.
  • Statements (a), (d), and (e) are incorrect:
  • Statement (a) is incorrect. Lipids having only single bonds are called saturated fatty acids, not unsaturated fatty acids.
  • Statement (d) is incorrect. Palmitic acid has 16 carbon atoms, not 20.
  • Statement (e) is incorrect. Arachidonic acid has 20 carbon atoms, not 16.
  • Therefore, the correct answer is option 3.
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