Question

4. An L-isomer of monosaccharide formed in human body during uronic acid pathway is....
and Why?
a. L-Xylulose (b) L-Erythrose
b. L-Ribulose (d) L-Fructose​

Answer 1

The L-isomer of monosaccharide formed in human body during uronic acid pathway is L-Xylulose

• Uronic acid pathway is one of the alternative oxidative pathway for the glucose metabolism.
• During step 7 of the reaction process the decarboxyllation of 3-keto L-gluconic acid forms L-Xylulose and keto pentose and release CO₂ gas.
• The L-Xylulose is an intermediate product formed in the reaction.
• L-Xylulose again on oxidation reduces to xylitol via xylitol dehydrogenase  also called as xylulo sereductase.

Answer 2

Answer:

L-Xylulose

Explanation:

It is a pentose sugar formed in body during uronic acid pathway