Question:
Name the polymer in which chains are formed by \(\alpha\)-1,4-glycosidic linkages between \(\alpha\)-glucose units and branches are formed by \(\alpha\)-1,6-glycosidic linkages.
Name the polymer in which chains are formed by \(\alpha\)-1,4-glycosidic linkages between \(\alpha\)-glucose units and branches are formed by \(\alpha\)-1,6-glycosidic linkages.
Show Hint
The branched component of starch with alpha-1,6 links is amylopectin.
Updated On: Nov 12, 2026
- Amylose
- Amylopectin
- Starch
- Cellulose
Show Solution
Verified By Collegedunia
The Correct Option is B
Solution and Explanation
Step 1: Understanding the Concept
Starch is a mixture of two polysaccharides, amylose and amylopectin. Both are made of \(\alpha\)-glucose.
Step 2: Compare the polymers
Amylose is an unbranched chain with only \(\alpha\)-1,4 links.
Amylopectin has main chains of \(\alpha\)-1,4 links with branches attached through \(\alpha\)-1,6 links.
Cellulose has \(\beta\)-1,4 links between \(\beta\)-glucose units.
Step 3: Conclusion
The description with \(\alpha\)-1,6 branching matches amylopectin. Starch is a mixture, so it is not the single polymer described.
Final Answer:
The polymer is amylopectin. \[ \boxed{\text{(B) }\text{Amylopectin}} \]
Starch is a mixture of two polysaccharides, amylose and amylopectin. Both are made of \(\alpha\)-glucose.
Step 2: Compare the polymers
Amylose is an unbranched chain with only \(\alpha\)-1,4 links.
Amylopectin has main chains of \(\alpha\)-1,4 links with branches attached through \(\alpha\)-1,6 links.
Cellulose has \(\beta\)-1,4 links between \(\beta\)-glucose units.
Step 3: Conclusion
The description with \(\alpha\)-1,6 branching matches amylopectin. Starch is a mixture, so it is not the single polymer described.
Final Answer:
The polymer is amylopectin. \[ \boxed{\text{(B) }\text{Amylopectin}} \]
Was this answer helpful?
0
0
Top MHT CET Chemistry Questions
- The temperature of $32^{\circ}C$ is equivalent to
- The heat of formation of water is $ 260\, kJ $ . How much $ H_2O $ is decomposed by $ 130\, kJ $ of heat ?
- If a metal crystallises in bcc structure with edge length of unit cell $4.29 \times 10^{-8}\, cm$ the radius of metal atom is
- Which of the following oxides can act both as an oxidising agent as well as reducing agent ?
- "The mass and energy both are conserved in an isolated system", is the statement of
View More Questions
Top MHT CET Carbohydrates Questions
- Stachyose is a
- Which of the following is a non-reducing sugar?
- What is the structural feature of glucose that makes it a reducing sugar?
- What is the structural feature of glucose that makes it a reducing sugar?
- Which among the following is a product of hydrolysis of one mole raffinose?
View More Questions
Top MHT CET Questions
- During r- DNA technology, which one of the following enzymes is used for cleaving DNA molecule ?
- In non uniform circular motion, the ratio of tangential to radial acceleration is (r = radius of circle, $v =$ speed of the particle, $\alpha =$ angular acceleration)
- The temperature of $32^{\circ}C$ is equivalent to
- The line $5x + y - 1 = 0$ coincides with one of the lines given by $5x^2 + xy - kx - 2y + 2 = 0 $ then the value of k is
- The heat of formation of water is $ 260\, kJ $ . How much $ H_2O $ is decomposed by $ 130\, kJ $ of heat ?
View More Questions