Question:
Which one of the monomers given is used in the synthesis of cellulose?
Which one of the monomers given is used in the synthesis of cellulose?
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Remember: Cellulose is built from \textbf{β-D-glucose} units, while starch and glycogen are made of \textbf{α-D-glucose} units.
Updated On: Aug 29, 2025
- Fructose
- Lactic acid
- Galactose
- Glucose
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The Correct Option is D
Solution and Explanation
Step 1: Recall the composition of cellulose.
Cellulose is a polysaccharide made up of repeating units of a monosaccharide.
Step 2: Identify the correct monomer.
The monomeric unit of cellulose is β-D-glucose. Each glucose molecule is linked through $\beta(1 \rightarrow 4)$ glycosidic bonds.
Step 3: Eliminate the incorrect options.
- Fructose: Found in sucrose, not cellulose.
- Lactic acid: Involved in polylactic acid polymers, not cellulose.
- Galactose: Monomer of lactose, not cellulose.
Step 4: Conclude.
Hence, the correct monomer is Glucose. Final Answer: \[ \boxed{\text{Glucose}} \]
Cellulose is a polysaccharide made up of repeating units of a monosaccharide.
Step 2: Identify the correct monomer.
The monomeric unit of cellulose is β-D-glucose. Each glucose molecule is linked through $\beta(1 \rightarrow 4)$ glycosidic bonds.
Step 3: Eliminate the incorrect options.
- Fructose: Found in sucrose, not cellulose.
- Lactic acid: Involved in polylactic acid polymers, not cellulose.
- Galactose: Monomer of lactose, not cellulose.
Step 4: Conclude.
Hence, the correct monomer is Glucose. Final Answer: \[ \boxed{\text{Glucose}} \]
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