BCH 501 BASIC BIOCHEMISTRY

 

UASR/ACR/BCH 501/AQ EXAM/2012-13/IISEM/1-3-2013/15 MARKS/
1 HOUR

Q I Fill in blank with appropriate words (0.5 x 10 = 5)

1. Em & Es (Check) & Kreb Scientists studied the Glycolysis.

2. Pectin contains D-galactose (cell wall).

3. Dielectric constant of water is high.

4. In water molecule oxygen (O2) is electronegative atom.

5. Specific rotation of sucrose is 52.7 + 19°C.

6. C6H12O6 is general molecular formula of carbohydrates.

7. Onion contains inulin as storage polysaccharide.

8. Raffinose is a Trisaccharide.

9. Fungal cell wall contain chitin as carbohydrate.

10. Lipids are hydrolysed by the enzymes Lipase.

Q II Write true or False (0.5 x 8 = 4)

1. Scientist Northroop for the first time coined the term enzyme. False

2. Naturally occurring fructose is a D-sugar. False

3. Amylose is a branched polymer of glucose. False

4. Arachidic acid is a short chain fatty acid. False

5. Disterioisomers are optical isomers. False

6. Verbiscose is a pentose sugar. True

7. Hydrogenation of Tripalmitolein produces Tristearine. False

8. All D-sugars are dextrorotatory sugars. True

Q III Write The structures of following (0.5 x 4 = 2)

1. Cellulose

2. 2-linolio-1,3-dipalmitine

3. Amylopectine

4. Trilinolein

Q IV Define the following (1 x 4 = 4)

1. Hydrogen bond

2. Anomers

3. Optical isomers

4. Specific heat of water