Loyola College B.Sc. Zoology April 2008 Cell Biology Question Paper PDF Download

                LOYOLA COLLEGE (AUTONOMOUS), CHENNAI – 600 034

B.Sc. DEGREE EXAMINATION – ZOOLOGY

TS 11

 

FIFTH SEMESTER – APRIL 2007

ZO 5500 – CELL BIOLOGY

 

 

 

Date & Time: 27/04/2007 / 1:00 – 4:00 Dept. No.                                                Max. : 100 Marks

 

 

 

PART A                                             (Answer all)                           10 x 2 = 20

  1. What is Camera Lucida?
  2. Mention the discoverers of lysosome and nucleus.
  3. Differentiate micron from angstrom units
  4. What is ital staining?
  5. Comment on “suicidal bags of cells”.
  6. What is a nucleoid?
  7. Define heterochromatin.
  8. Mitochondrion is the power house of the cell – Justify.
  9. What are chromosomal puffs?
  10. What are SEM and TEM?

 

PART B                                             (Answer any four)                             4 x 10 = 40

  1. Explain the principle involved in compound microscopy.
  2. Describe polymorphism in lysosomes.
  3. Explain the double helical model of DNA.
  4. Write notes on giant chromosomes.
  5. Describe the structure of golgi complex.
  6. Elucidate the fluid mosaic model of membranes.

 

PART C                                             (Answer any two)                              2 x 20 = 40

  1. Write an essay on cytology of cancer.
  2. Enumerate the colloidal properties of protoplasm.
  3. Describe biosynthesis of proteins.
  4. With suitable diagrams describe the structure of nucleus and nucleolus.

 

 

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