What is the function of glucose?

Sucrose on hydrolysis gives:

What do you understand by the term glycosidic linkage?

The reaction of glucose with $CH_3OH$ in the presence of dry $HCl$ yields methyl glucoside,which indicates the presence of a/an .... in glucose.

Natural glucose is termed $D$-glucose because

The reagents with which glucose does not react to give the corresponding tests/products are
$A$. Tollen's reagent
$B$. Schiff's reagent
$C$. $HCN$
$D$. $NH_2OH$
$E$. $NaHSO_3$
Choose the correct options from the given below: