Question

Read the following statements on lipids and find out correct set of statements:

1. Lecithin found in the plasma membrane is a glycolipids
2. Saturated fatty acids possess one or more c = c bonds
3. Gingely oil has lower melting point, hence remains as oil in winter
4. Lipids are generally insoluble in water but soluble in some organic solvents
5. When fatty acid is esterified with glycerol, monoglycerides are formed.

Choose the correct answer from the options given below

• A. (a), (b) and (c) only
• B. (a), (b) and (e) only
• C. (c), (d) and (e) only
• D. (a), (b) and (d) only

Answer 1

The Correct Option is C

To determine the correct set of statements on lipids, we will evaluate each statement listed:

• Statement (a): Lecithin found in the plasma membrane is a glycolipid.
  Lecithin is actually a type of phospholipid, not a glycolipid. Therefore, this statement is incorrect.
• Statement (b): Saturated fatty acids possess one or more c = c bonds.
  Saturated fatty acids do not contain any c = c (carbon-to-carbon double) bonds; they only have single bonds between the carbons. Therefore, this statement is incorrect.
• Statement (c): Gingely oil has a lower melting point, hence remains as oil in winter.
  Gingely oil, also known as sesame oil, is high in unsaturated fats, which have lower melting points and remain liquid at lower temperatures compared to saturated fats. This statement is correct.
• Statement (d): Lipids are generally insoluble in water but soluble in some organic solvents.
  This is a characteristic property of lipids. They are hydrophobic and do not dissolve in water but are soluble in organic solvents like ethanol and chloroform. This statement is correct.
• Statement (e): When fatty acid is esterified with glycerol, monoglycerides are formed.
  When one molecule of fatty acid is esterified with glycerol, a monoglyceride is indeed formed. This statement is correct.

Based on the evaluation:

• Correct Statements: (c), (d), and (e)

The correct answer is:

(c), (d) and (e) only