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  4. The glycosidic linkage involved in linking the glucose unit in amylose part of starch is:

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Q. The glycosidic linkage involved in linking the glucose unit in amylose part of starch is:

Biomolecules

Solution:

$C _{1}- C _{4} \alpha-$ linkage.
Amylases starch is a polymer of glucose molecule linked with glycosidic linkage. It comes in two forms, i.e amylose and amylopectin. Here amylose shows a linear structure of glucose units linked together by glycosidic bonds to form a helical structure.
Amylose is a polysaccharide made of $\alpha-D-$ glucose units, bonded to each other through $\alpha(1 \rightarrow 4)$ glycosidic bonds.
It is one of the two components of starch, making up approximately $20- 30 \%$.