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Posted By: krishna mohan Member Level: Gold Posted Date: 02 Jun 2008
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2007 Jawaharlal Nehru Technological University B.E Biomedical engineering APPLIED CHEMISTRY AND BIOCHEMISTRY Question paper
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Code No: R050211101 Set No.2
II B.Tech I Semester Regular Examinations, November 2007
APPLIED CHEMISTRY AND BIOCHEMISTRY
(Bio Medical Engineering)
Time:3 hours Max Marks:80
Answer any FIVE Questions
All Questions carry equal marks
1. ( a) De?ne electrolyte and non-electrolyte with suitable examples .
(b) De?ne strong and weak electrolytes
(c) Explain Arrhenius ionic theory along with postulates. [5+5+6]
2. (a)What is the Composition of natural rubbers? How is it obtained from its natural source?
(b) Write a note on vulcanization of rubber. [8+8]
3. (a) What is lubrication ? What are the requirements of a good lubricant ?
(b) Under what operating conditions would you use ,
i. lubricating oils
ii. Greases,
iii. Solid lubricants? Explain with examples. [4+4+4+4]
4. (a) Di?erentiate between prokaryotic and eukouyotic cells with suitable examples .
(b) Explain the composition or cell walls of prokaryotic cells. [8+8]
5. What is an enzyme? What is its chemical nature? Explain how the enzymes accelerate reactions . [16]
6. Discuss the Nucleic acid chemistry with suitable examples . Write about Replication. [16]
7. (a) Illustrate the structure of hemoglobin .
(b) Describe biological functions and mechanism of hemoglobin. [8+8]
8. Write a short note on :
(a) Fluorometry
(b) Flame photometry. [8+8]
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