Janardan Rai Nagar Rajasthan Vidyapeeth 2006 B.Tech Biotechnology BIOMOLECULES - Question Paper

Model Question Papers

BSBT4 BIOMOLECULES

Duration : 3 Hrs. Maximum Marks : 75

 

Instruction:

1. Question paper is divided into Group A, Group B and Group C

2. Each Group is of 25 Marks

3. Figure to the right in bracket indicate marks.

4. Good Handwriting is expected

 

Group A (25 Marks)

 

Answer any three questions (Question 1 is compulsory)

	(5)

 

Q.1: Define carbohydrates and classify it.

(10)

Q.2: Difference between reducing and non-reducing sugar.

(10)

Q.3: Explain the reaction that will distinguish between ketose and aldose

(10)

Q.4: Write down some common methods for analysis of complex carbohydrates.

(10)

Q.5: Write about chemical bonds involved in protein structure.

 

Group B (25 Marks)

 

(5)

Answer any three questions (Questions 6 is compulsory)

Q.6: Classify protein on basis of its composition and solubility

(10)

Q.7: What are the chemical properties of protein.

(10)

Q.8: Define lipids and classify it in detail.

(10)

Q.9: Write note on Heterolipids and explain structure of sphingomyelin

(10)

Q.10: Write down the comparison between DNA and RNA.

 

Group C (25 Marks)

 

All Questions are Compulsory.

 

Q.11. (A) Fill in the blanks (Each question carries 2 Marks, Total = 10 Marks)

 

(i) The substance upon which an Enzyme acts is called as _____________.

(ii) Denaturation is the property of _____________.

(iii) Ribo nuclease is an Enzyme secreted by _____________.

(iv) Xeropthalmia is due to the deficiency of _____________.

(v) The technique of separation of substance according to their partition coefficients in two immiscible phases is called as ___________.

 

Q.11. (B) Multiple choice questions (Each question carries 2 marks, Total = 10 marks)

 

(i) Multiple forms of the Enzymes are called as __________

(a) L - cystine (c) isoenzymes

(b) Lipids (d) multivitamins

 

(ii) Which of the following is both a vitamin and a harmone.

(a) ascorbic and (c) thiamine

(b) calciferol (d) viboflavin

 

(iii) Carboxy methyl cellulose and deithylaminoethyl cellulose can be easily separated by ___________

(a) Ion exchange chromatography (b) TLC

(c) Paper chromatography (d) Gas chromatography

 

(iv) When native DNA is denatured, there is increase in the optical absorbance by pyrimidine and purine bases, an effect is called as ____________

(a) Hyper chromicity (b) Polarity

(c) Hypo chromicity (d) Deflection

 

(v) Chordroitin is similar in structure to hyaluronic acid except that it contain _____ rather than glucosamine.

(a) glucuronic acid (b) galactosamine

(c) acetic acid (d) galactose

 

Q.11. (C) Indicate whether following statements are True or False (Each question carries 1 marks, Total = 5 Marks)

 

(i) Starch is an example of Trisac charides.

(ii) Structural isomers have the same moleculer formula but different structures.

(iii) Deficiency of vitamin D in adults leads to adult rickets.

(iv) Migration of ions in an electrical field at a definite PH is called ultra centrifugation.

(v)      The non-sugar part of a glycoside is called as Aglycon.

 

 

 

 

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