Which of the following molecules serves as fibrous content of food only and is useful for bowel movement in humans?

Methyl-$\alpha-D$-glucoside and methyl-$\beta-D$-glucoside are

Which reagent forms a crystalline osazone derivative upon reaction with glucose?

If a monosaccharide contains an aldehyde group,it is known as:

The carbohydrate present in $DNA$ is $2$-deoxy-$D$-ribose. Which of the following statements are correct regarding this sugar?
$A.$ It is a pentose sugar.
$B.$ It is present in pyranose form.
$C.$ It is in $D$-configuration.
$D.$ It is a reducing sugar when free.
$E.$ It is in $\alpha$-anomeric form.
Choose the correct answer from the options given below:

The aqueous solution of a carbohydrate gives a dark blue colour with iodine. It is