Loyola College B.Sc. Adv. Zoology & Bio-Technology April 2008 Cell Biology Question Paper PDF Download

LOYOLA COLLEGE (AUTONOMOUS), CHENNAI – 600 034

       B.Sc. DEGREE EXAMINATION – ADVANCED ZOOLOGY & BIOTECH.

DE 13

 

FIFTH SEMESTER – APRIL 2008

AZ 5500 / ZO 5500 – CELL BIOLOGY

 

 

 

Date : 07/05/2008                Dept. No.                                        Max. : 100 Marks

Time : 9:00 – 12:00

 

PART – A

Answer ALL the following questions in few sentences.                               (10 x 2 = 20 marks)

 

  1. Define Cell theory.
  2. What are stage micrometer and ocular micrometer?
  3. What is fixative?  Give example.
  4. Mention any four differences between prokaryotes and eukaryotes.
  5. Define active transport.  Give example.
  6. What are peroxisomes and glyoxisomes?
  7. What are the components of nucleus?
  8. What are nucleoside and nucleotide?
  9. Define cell cycle.
  10. Define Cancer Cell.

PART – B

Answer any FOUR following questions                                                      (4 x 10 = 40 marks)

 

  1. Explain the principle involved in phase contrast microscope.
  2. Give an account on cell fractionation and differential centrifugation.
  3. Elucidate the ultra structure and models of plasma membrane.
  4. Describe the role of centrioles and microtubles.
  5. Explain the cytological events of Prophase I of Meiosis.
  6. Give an account of cytology of Cancer.

PART – C

Answer any TWO of the following questions                                                   (2 x 20 = 40 marks)

 

  1. Describe the functions of plasma membrane.
  2. Discuss the structure, chemical composition and functions of Lysosomes.
  3. Elucidate the DNA transcription and protein synthesis.
  4. Describe the ultra structure and functions of giant chromosomes.

 

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