HUMAN NUTRITION

NUTRITION

LIPIDS

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
Which is a monosaccharide?
A
sucrose
B
glucose
C
starch
D
glycogen
Explanation: 

Detailed explanation-1: -Glucose is classified as a monosaccharide because it cannot be broken down further by hydrolysis. It is further classified as a hexose because of its six-carbon skeleton and as an aldose, because of the presence of an aldehyde group on carbon 1.

Detailed explanation-2: -The chemical formula of Glucose is C6H12O6. Glucose is a monosaccharide containing an aldehyde group (-CHO). It is made of 6 carbon atoms, 12 hydrogen atoms and 6 oxygen atoms.

Detailed explanation-3: -The most nutritionally important monosaccharides are the pentoses (5-carbon atom skeleton), e.g., ribose, and the hexoses (6-carbon atom skeleton), e.g., glucose. Other examples of monosaccharides include fructose, galactose, and xylose.

Detailed explanation-4: -There are nine common monosaccharides found in vertebrate glycoconjugates (Figure 2.4). Once incorporated into a glycan, these nine monosaccharide building blocks can be further modified to generate additional sugar structures.

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