Assignment/Presentation Questions
Provide the expected answers to the following questions:
1. Explain the distinction between aldoses and ketoses based on their functional groups.
2. Provide the structures and properties of both aldoses and ketoses.
3. Identify the general characteristics of carbohydrates.
4. Explain the significance of glyceraldehyde as a reference molecule for carbohydrate configuration.
5. Discuss the stereochemical configurations of carbohydrates, specifically focusing on the D and L forms.
6. Hydrolysis of Fats and Oil or simple Lipids do produce
7.
Explain the following as it affects sugar molecule
i) anomerism ii) Mutarotation
(A) Glycerol (B) Glyceraldehyde (C) Fatty Acids (D) Soap
8. The –OH groups in sugar due to one of the
following reasons
(A) presence of glycosidic bonding
(B) lack of free carbonyl group
(C) presence of free carbonyl group
(D) Lack of ionic character
9. Complete hydrolysis of starch with dil.HCl
yield
A) Sucrose units (B) Fructose units (C) glucose units (D) none
10. Plant gums are naturally occurring
carbohydrates classified as
(A) Monosaccharides (B) Dissacharides (C)
Polysaccharides (D) polymers
11. Naturally occurring compounds that can rotate
of plane polarized light are said to be
(A) Natural product (B) optically active (C) Isotopes
(D) Isomers
12. The number of –OH groups in sugar molecules
can be determined by
(A) carbonization
(B) acetylation (C) methylation
(D)Oxidation
13. The most abundant carbohydrate in existence
is
(A) fructose (B) Glucose (C) Manose (D) sucrose
14. In reduction reaction, glucose is converted
to
(A) Glucaric acid (B)D-glucitol (C) Glyconic acid (D) Fructose
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