BSc Biotechnology Sem VI ATKT 2018-19 ATKT Biotech I Cell Biology Question Paper - Mumbai University | munotes

Questions asked in this paper

• Please check whether you have got the right question paper

1. Q2 All questions carry equal marks
2. Q4 Use of log books and non —programmable calculator is allowed
3. Q1 a. Explain the following: (any three) 3 marks
4. Q1 Gap Junctions
   • iv) GPCR
   • v) Desensitization
   • b. Discuss the following: (any. two) 12
5. Q1 of a cell to multiple extracellular signals li) Role of NO as an extracellular messenger ili) Mechanism of activation of Receptors Tyrosine Kinase
   • iv) Role of calcium as a second messenger
6. Q2 a. Name the following: (any three) 3 marks
7. Q1 phase of cell cycle at which the chromosomes move to the opposite poles of
   • ii) that possess a relatively high level of mitotic activity
   • iii) that moves phosphatidylserine molecules to the outer leaflet of the plasma membrane where they are recognized by macrophages
   • iv) Malignant tumors of hematopoietic cells of bone marrow
   • v) Process where clusters of cancer cells dislodge from a tumor and invade the blood
   • vi) Anextracellular messenger protein that has the ability to kill tumor cells Give an account of the following: (any two) 12
   • i) Regulation of the activities of CdKs Intrinsic pathway of apoptosis
   • iii) Tumour Suppressor Genes and their role
   • iv) Significance of apoptosis
8. Q3 a. directed: (any three) 3 marks
9. Q1 Give aterm for the following — The antimicrobial agent that is effective only against a limited variety of pathogens Give one example of antiviral drug
   • iii) State true or false- Indiscriminate antimicrobial use results in the selection of
   • iv) Name the scientist who coined the term selective toxicity
   • Q.P. Code :32302
   • v) Fill in the blank- a polyene antifungal from Streptomyces is used to
   • vi) Name one desirable pharmacologic activity of an antimicrobial agent
   • b. Elaborate on the following: (any two) 12
10. Q1 of drug resistance with examples
    • ii) Mode of action of Cephalosporins
    • iii) Origin and transmission of drug resistance
    • iv) of action of Aminoglycosides with example
11. Q4 a. instructed: (any three) 3 marks
12. Q1 standard deviation if Variance is li) the mode in the given series 3,4,5,6,6,6,6,7,7,8,9 ili) | Name the parametric test used to test the significance of means for sample size 25 marks
    • iv) Give the formula to calculate Coefficient of variance
    • v) Define Arithmetic mean
    • vi) true or false- The normal probability curve is a bell shaped curve
    • b. Attempt the following: (any two) 12
13. Q1 is regression? Give two lines of regression and regression equations
    • ii) wants to represent the data with diagrams and graphs. Which are the different diagrams and graphs you would recommend for data representation?
    • ii) Aherd of 100 cattle was fed a special high-protein grain for a month and had gained an average of 6.5 pounds. If the standard deviation of weight gain for the entire herd is 1.0 pounds, test the hypothesis at 5% level of significance that the average weight gain per cattle for the month was more than 5 pounds
    • iv). Ina biology experiment a number of cultures were grown in a laboratory. The number of bacteria in millions and their ages in days are given below. Calculate the coefficients of correlation Write short notes on the following: (any three) 15
    • i) Mode of action of Metronidazole Use.and misuse of antimicrobial agents
    • iii) Concepts and uses of Chi-square test Relationship between number of surface receptors and the ligand concentration
    • v) . Characteristic features of endocrine signalling
    • vi) Interphase and its stages

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