GTU BE/B.Tech 2019 Winter Question Papers || Gujarat Technological University
Subject Code: 2153605
GUJARAT TECHNOLOGICAL UNIVERSITY
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BE - SEMESTER- V (New) EXAMINATION - WINTER 2019
Date: 29/11/2019
Subject Name: Microbiology & Formulation Technology of Liquids & Topicals
Time: 10:30 AM TO 01:00 PM
Instructions:
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- Attempt all questions.
- Make suitable assumptions wherever necessary.
- Figures to the right indicate full marks.
| Q.1 | (a) | What are the ideal properties and advantages of suspensions ? | MARKS |
| (b) | Explain the concept of allergy | 03 | |
| (c) | Define ointment. Describe in detail how ointments are made. | 04 | |
| Q.2 | (a) | Define taxonomy | 07 |
| (b) | Write a note on emulsion instabilities | 03 | |
| (c) | Mention the principle behind the sterility testing. Explain the sterility test methods in detail | 04 | |
| OR | 07 | ||
| Explain Culture Preservation in detail | |||
| Q.3 | (a) | Explain the morphology of Virus | 07 |
| (b) | Explain: Scanning and Tanning Electron Microscope | 03 | |
| (c) | Describe gram staining method in detail | 04 | |
| OR | 07 | ||
| Explain: Capsule & Slime Layer | |||
| Q4 | (a) | Explain the steps involved in the virus replication | 03 |
| (b) | Define Antigen & Antibodies. Discuss the structure of Antigen briefly indicating epitopes and their role. Also discuss the structure of an antibody with the help of schematic and describe its various parts | 04 | |
| (c) | Classify emulsions in detail | 07 | |
| OR | |||
| Write a note on Emulsion formulation components | |||
| Q.5 | (a) | What are the formulation components of the syrup, write in brief | 03 |
| (b) | OR | 04 | |
| Define Emulsions and Suspensions | |||
| (c) | Write a note on syrup | 07 | |
| Explain in detail tests to identify emulsion type | |||
| (a) | Explain (1). Magnification, (2). Resolution (3). Numerical Aperture | 03 | |
| (b) | Differentiate between: anionic and cationic stain, basic and acidic stain | 04 | |
| (c) | List out any five methods of measuring microbial growth. Discuss the serial dilution method in detail with the help of figures | 07 | |
| OR | |||
| Write Differences between Wet mount and Hanging Drop Technique | |||
| Write short note: Radioimmunoassay(RIA) | |||
| Which are the different methods of maintaining and preserving pure cultures. Explain each method briefly |
Total Marks: 70
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