Question:

Which of the following is correctly matched?

Show Hint

Cellulose, Starch, and Glycogen are all Homopolysaccharides of Glucose. They differ only in the type of glycosidic linkages and degree of branching.
  • Globulins – Conjugated proteins
  • Homopolysaccharides ‐ Cellulose
  • Phospholipids – Simple lipids
  • Stearic acid – Unsaturated fatty acid
Show Solution
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The Correct Option is B

Solution and Explanation

Step 1: Understanding the Question:
The question requires identifying the correct biological classification match between a compound and its category.

Step 2: Detailed Explanation:


Analysis of Option (A): Globulins are "Simple Proteins" because they yield only amino acids upon hydrolysis. Conjugated proteins are those containing non-protein groups (like hemoglobin). This match is incorrect.

Analysis of Option (B): Homopolysaccharides are carbohydrates composed of only one type of monosaccharide unit. Cellulose is composed entirely of $\beta$-D-glucose units. Thus, this match is correct.

Analysis of Option (C): Phospholipids are "Compound Lipids" or "Complex Lipids" because they contain a phosphate group in addition to fatty acids and glycerol. Simple lipids include only fats and waxes. This match is incorrect.

Analysis of Option (D): Stearic acid (C18:0) is a saturated fatty acid (contains no double bonds). Unsaturated fatty acids include oleic or linoleic acid. This match is incorrect.

Step 3: Final Answer:

Only option (B) represents a scientifically accurate classification.
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