Question

The difference between amylose and amylopectin is

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

Answer 1

Answer: (B)

Amylopectin have $1 \rightarrow 4 \alpha$ -linkage and $1 \rightarrow 6 \alpha$ -linkage

Answer 2

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