Question

The difference between amylose and amylopectin is:

• A. Amylopectin has a 1 $\to$ 4 $\alpha$- linkage and a 1 $\to$ 6 $\beta$-linkage
  
• B. Amylose has a 1 $\to$ 4 $\alpha$- linkage and a 1 $\to$ 6 $\beta$-linkage
  
• C. Amylopectin has a 1 $\to$ 4 $\alpha$- linkage and a 1 $\to$ 6 $\alpha$-linkage
  
• D. Amylose is made up of glucose and galactose

Answer 1

The correct option is C Amylopectin has a 1 $\to$ 4 $\alpha$- linkage and a 1 $\to$ 6 $\alpha$-linkage


Amylose and Amylopectin are polymers of $\alpha$-D-glucose, so $\beta$-link is not possible. Amylose is linear with a 1 $\to$ 4 $\alpha$-linkage whereas Amylopectin is branched and has both 1 $\to$ 4 and 1 $\to$ 6 $\alpha$ -linkages.