Download PTU B.Sc -MLS 1st Semester 2019 May 48050 BASICS OF BIOCHEMISTRY Question Paper

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Roll No. [ ] [ ] [ ] [ ] Total No. of Pages : 02
Total No. of Questions : 09

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INSTRUCTION TO CANDIDATES :

1. SECTION-A is COMPULSORY consisting of TEN questions carrying TWO marks each.
2. SECTION-B contains FIVE questions carrying FIVE marks each and students have to attempt any FOUR questions.
3. SECTION-C contains THREE questions carrying TEN marks each and students have to attempt any TWO questions.

SECTION-A

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1. Answer briefly :

1. Define normality.
2. Define pH.
3. Name any five indicators and their respective color at different pH.
4. Define osmosis.

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5. Define dialysis.
6. Give SI unit of mass, length and substance.
7. Define primary standards.
8. Write any two factors affecting osmotic pressure.
9. Explain steps involved in cleaning borosilicate glassware.

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10. Define standard solutions.

SECTION-B

2. Explain Henderson-Hasselbalch equation.

3. Discuss various types of osmosis and also give their applications.

4. How will you prepare 300ml of N/20 Oxalic acid?

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5. Discuss various steps involved in preparation of chromic acid solution.

6. Write short notes on Van't Hoff's equation.

SECTION-C

7. Discuss various methods of preparing distilled water and also comment on its storage.

8. Describe the principle, working and maintenance of analytical balance.

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9. Write detailed notes on :

1. pH meter
2. First aid

NOTE : Disclosure of Identity by writing Mobile No. or Making of passing request on any page of Answer Sheet will lead to UMC against the Student.

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