LinkedIn Insight BSc. Chemistry-I : Bio-organic Chemistry -Mumbai-April 2018 - Grad Plus

BSc. Chemistry-I : Bio-organic Chemistry -Mumbai-April 2018

MUMBAI UNIVERSITY

Subject: Chemistry-I: Bio-organic Chemistry 

Semester: 2

[Total Time: 2 Hours]
[Total Marks: 75]
Please check whether you have got the right question papers

N.B:   1) Attempt all questions.
2) All questions carry equal marks.
3) Draw neat labeled diagrams wherever necessary
4) Use of log tables and non-programmable calculators is allowed.
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Q. 1) Do as directed: (Any fifteen) (15M)

1) Define the following terms:

1) Carbohydrate

2) Dipeptide

3) Isoelectric pH

4) Isomers

5) Unsaturated fatty acid

6) Pitch of the helix

7) Saponification

Draw structures of the following biomolecules

8) Purine base

9) D-glyceraldehyde

10) D-glucose

11) Serine

12) Acetone

Name the following:

13)  An acidic amino acid

14) One keto sugar

15) Sterol of biological significance

16) Fibrous protein present in hair

17) Sugar present In DNA

18) Parent. compound of phospholipids

19) The transport protein present the red blood cell

20) Type of bond present between base pair G-C

Q. 2) a) Compare and contrast: Unsaturated fatty acids and Saturated fatty acids. (8M)

b) Define and classify monosaccharides. (7M)

OR

c) Compare and contrast: (8M)
I) Maltose and Lactose
ii) Starch and Cellulose

d) What are phospholipids? Draw structures of Lecithin and Cephalin (7M)

Q. 3) a) Explain N-terminal sequencing of proteins using Edman’s and Sanger’s Methods. (8M)

b) Classify amino acids on the basis of the polarity of the Reraup. (7M)

OR

c) Schematically represent the titration curve of an amino acid and describe the different stages. (8M)

d) Explain the term conjugated Proteins Give examples and state there-functions: (7M)

Q. 4) a) Give a brief account of types of RNA and discusses their functions. (8M)

b) Explain denaturation and renaturation of DNA in detail. (7M)

OR

c) Give an account of different conformations of DNA double helix. (8M)

d)  Explain Cloverleaf model of tRNA using a suitable diagram. (7M)

Q. 5) Write a short note on (Any three) (15M)

a) Types of Triacylglycerol

b) Structure and functions of STarch

c) Denaturation of proteins

d) Chargaff’s rule

e) Function of Nucleotides.

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