B.Sc. (Biotechnology) Sem II 2022 2023 Apr 2023 CELL BIOLOGY AND MICROBIOLOGY II Question Paper - Mumbai University | munotes

Questions asked in this paper

• 1. Attempt all questions

1. Q2 All questions carry equal marks t 4. Use of log tables and non-programmable calculator is allowed
2. Q5 For Q2, Q3 and Q 4 attempt A and B OR C and D directed (Any fifteen) 15 What are prokaryotes?
3. Q2 Prokaryotic flagellar filament is made up of protein known as A short rod shaped cell intermediate in shape between cocci and bacilli is called as 4, State true or the lipid molecules in cell membrane are amphiphilic in nature" What do you mean by monotrichous bacteria?
4. Q6 What is periplasmic space? What are integral membrane proteins?
5. Q8 Define virion
6. Q9 Give an example of ssDNA virus
7. Q10 Name any one cell line used for cultivation of animal viruses Fill in the blank: In 1892, Dmitrii lvanowski discovered that the causative agent of State whether true or false: Viruses lack enzymes for protein synthesis
8. Q13 What is plaque?
9. Q14 Name any one technique used for identification of viruses 15 State true false: Eventually population of the microbial growth ceases and the growth becomes horizontal in the stationary phase
10. Q16 What do you mean by unbalanced growth of microorganisms? Explain the term generation time
11. Q18 | How would you count the viable microbial cells in a given sample? 19, Mention the temperature at which samples are stored in liquid Nitrogen
12. Q20 What is the role of ATCC? Draw a neat labeled diagram of the structure of the plasma membrane. Enlist the unctions of plasma membrane and add a note on membrane proteins Compare and contrast between gram positive and gram negative bacterial cell walls. 07
13. Q2 C_ Compare and contrast between prokaryotic and eukaryotic cell. Withaneat labeled diagram explain the structure of prokaryotic flagella. 07 Elaborate on the four different phases of growth observed on plotting the logarithm of number of viable microorganism versus the incubation time Give an account on the different methods used to enumerate the number of microorganisms in a sample mentioning its advantages and disadvantages Why do you need to preserve and maintain organisms? Explain how you would preserve cultures for a short term period Give an account on the mathematical expression for the generation time and the mean 97 growth rate constant inorder to understand the concept of microbial growth 8 marks
14. Q4 A_ Explain in detail the general morphology of viruses 8 marks
15. Q4 B an account of multiplication of animal viruses Give an account of host range and structure of viruses 08 7 marks
16. Q4 D_ Write a note on Influenza virus. 7 marks
17. Q5 short note on any three of the following Properties used for classification of viruses 15 marks

Read from the scan above, so a character or two may differ. The scan is the original.