Question

Which of the following monosaccharide is a pentose ?
(a) Galactose
(b) Glucose
(c) Fructose
(d) Arabinose

Answer 1

Option d arabinose is the right answer

Answer 2

Answer: the correct answer is d) Arabinose

Explanation:

Carbohydrates is one of the examples of Biomolecules.

They are major source of energy.

They are optically active polyhydroxy ketones or aldehydes that can be hydroylsed to polyhydroxy ketones or aldehydes.

Carbohydrates are classified as follows:

1) simple carbohydrates

2) complex carbohydrates

Simple carbohydrates are known as monosaccharides.

They are the basic unit of carbohydrates.

There are about 20 of them in nature.

Upon the carbon number, monosaccharides are classified as triose, tetrose, pentise, hexose, etc

Arabinose is an aldopentose that is it has 5 carbons.

Formula is C5H10O5