GTU BE/B.Tech 2018 Winter Question Papers || Gujarat Technological University
GUJARAT TECHNOLOGICAL UNIVERSITY
BE - SEMESTER-IV (NEW) EXAMINATION - WINTER 2018
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Subject Code: 2140405 Date: 22/11/2018
Subject Name: Cell Biology and Industrial Biotechnology
Time: 02:30 PM TO 05:30 PM Total Marks: 70
Instructions:
- Attempt all questions.
- Make suitable assumptions wherever necessary.
- Figures to the right indicate full marks.
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| MARKS | ||
| Q.1 | (a) Why are mitochondria termed as power house of cell? | 03 |
| (b) Describe chemical composition of plasma membrane. | 04 | |
| (c) Draw a labelled diagram of plant cell. Also describe functions of typical plant cell structures only. | 07 | |
| Q.2 | (a) Define the terms: peroxisomes and glyoxysomes. | 03 |
| (b) Describe various functions of Golgi apparatus. | 04 | |
| (c) What is cell theory? Describe the cell theory along with its exceptions. | 07 | |
| OR | ||
| (c) What is cytoplasmic matrix? Describe various theories regarding physical nature of matrix. | 07 | |
| Q.3 | (a) Write a note on lysosomes in plants. | 03 |
| (b) Draw labelled diagram of fluid mosaic model of plasma membrane. | 04 | |
| (c) What is endoplasmic reticulum? Explain its types, structure and function. | 07 | |
| OR | ||
| (a) Define the terms plasmid, nucleoid and mesosome. | 03 | |
| (b) Describe the structure and function of nucleolus. | 04 | |
| (c) Describe the ultrastructure of chloroplast. | 07 | |
| Q.4 | (a) What is meant by 70S and 80 S ribosomes? How many types of RNA and proteins are found in them? | 03 |
| (b) Compare cell wall of eubacteria and archea bacteria. | 04 | |
| (c) Explain ultra structure of bacterial flagella. | 07 | |
| OR | ||
| (a) What is secondary messenger? Give example of it. | 03 | |
| (b) Explain molecular mechanism of G protein linked signal transduction. | 04 | |
| (c) Describe the events of first meiotic prophase with diagram. | 07 | |
| Q.5 | (a) Explain different strategies of strain improvement. | 03 |
| (b) Compare first meiotic anaphase and second meiotic anaphase events. | 04 | |
| (c) Explain fermentative production of cephalosporin antibiotic. | 07 | |
| OR | ||
| (a) Explain simple and complex media. | 03 | |
| (b) What are medium requirements for fermentative production? | 04 | |
| (c) Explain fermentative production of citric acid. | 07 |
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