BIOMOLECULES AND ENZYMES

BIOLOGY

CARBOHYDRATES

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
these are converted to glucose for use by body cells
A
fructose
B
ribose
C
galactose
D
deoxyribose
Explanation: 

Detailed explanation-1: -Galactose can be converted to glucose-6-P, after which it can be used for glycogen synthesis; or it can be oxidized further to form PYR or acetyl-CoA for additional energy generation or fatty acid synthesis. Galactose is initially phosphorylated by galactokinase to form galactose-1-phosphate (galactose-1-P).

Detailed explanation-2: -Galactose is one of the monosaccharides of importance in human nutrition. It is converted to glucose-1-phosphate in the liver and subsequently stored as glycogen, or is converted to glucose and released into the circulation.

Detailed explanation-3: -Galactose is a simple sugar that is normally transformed in the liver before being used up as energy. This sugar is quite abundant in human diets and helps in a number of functions. Because galactose is a precursor to glucose production, it is an important energy-providing nutrient.

Detailed explanation-4: -Galactose is an essential carbohydrate for cellular metabolism, as it contributes to energy production and storage in several human tissues while also being a precursor for glycosylation.

Detailed explanation-5: -The enzyme UDP-galactose-4-epimerase (GAL10) catalyzes a key step in galactose metabolism converting UDP-galactose to UDP-glucose which then can get metabolized through glycolysis and TCA cycle thus allowing the cell to use galactose as a carbon and energy source.

There is 1 question to complete.