N A L A N D A O P E N U N I V E R S I T Y
M.Sc. Botany, Part-I
PAPER-VII
(Cell Biology)
Annual Examination, 2017
Time 3 Hours. Full Marks 80
Answer any Five Questions. All questions carry equal marks.
1. What is plasma membrane Describe fluid mosaic of plasma membrane.
2. Give an account of ultrastructure of chloroplast and its function.
3. What is cell cycle Describe with suitable diagram and illustration different steps of mitosis.
4. What is senescence of a cell Describe the changes that occur in a cell during senescence.
5. Describe in detail prophase of meiosis. Describe significance of this phase.
6. What do you mean by ecological amplitude in the cell under fresh water environment.
7. Write short notes on any Two of the following
Structure of eukaryotic chromosome
Chemical structure of DNA
Types of viral genome.
8. Give an experimental proof to support biochemical theory of origin of life.
9. Write short notes on any Two of the following
Function of Lysosome
Types of RNA and its function
Peroxisome and its function
10. Mention steps followed during preparation of a cytological preparation of a cell.