Loyola College Cell Biology Question Papers

Loyola College M.Sc. Zoology April 2007 Cell Biology Question Paper PDF Download

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LOYOLA COLLEGE (AUTONOMOUS), CHENNAI – 600 034

M.Sc. DEGREE EXAMINATION – ZOOLOGY

TS 27

SECOND SEMESTER – APRIL 2007

ZO 2800 – CELL BIOLOGY

 

 

Date & Time: 17/04/2007 / 1:00 – 4:00    Dept. No.                                                               Max. : 100 Marks

 

 

Part A                                                (Answer all)                                    10 X 2 = 20

  1. What do you mean by resolving power of a microscope?
  2. Differentiate nucleoid from nucleus.
  3. Assess the symbiotic theory of origin of eukaryotes.
  4. What are vital stains?
  5. Comment on Balbiani rings.
  6. Mitochondria is a semi autonomous cell organelle. Justify.
  7. Mention the discoverers of the following:
  1. a) Lysosomes
  2. b) Nucleus
  3. c) Nucleolus
  4. d) Double helical DNA
  1. What are T and B lymphocytes?
  2. What are oncogenes?
  3. Comment on cell diffusion.

Part B                         (Answer any four)                             4 X 10 = 40

 

  1. Write notes on polymorphism in lysosomes.
  2. Illustrate and explain the fluid mosaic model of plasma membrane.
  3. Distinguish prokaryotic cell from eukaryotic cell.
  4. Explain the ultra structure of SAT-chromosome.
  5. Explain the principle involved in a compound microscope. In what way it differes from an electron microscope.
  6. Write short notes on Sodium-Potassium pump.

 

   Part C                            (Answer any two)                             2 X 20 = 40

 

  1. Illustrate the ultra structure of a mitochondrion and elaborate its functions.
  2. Write an essay on transcription and translation.
  3. Discuss “immune responses”.
  4. Write notes on:
  1. a) Structure of a cilium/flagellum.
  2. b) Giant  chromosomes.

 

 

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Loyola College B.Sc. Zoology April 2006 Cell Biology Question Paper PDF Download

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             LOYOLA COLLEGE (AUTONOMOUS), CHENNAI – 600 034

B.Sc. DEGREE EXAMINATION – ZOOLOGY

TS 11

FIFTH SEMESTER – APRIL 2006

                                                               ZO 5500 – CELL BIOLOGY

(Also equivalent to ZOO 509)

 

 

Date & Time : 20-04-2006/AFTERNOON   Dept. No.                                                       Max. : 100 Marks

 

 

 

Part A                                     (Answer All)                          10 X 2 = 20

 

  1.  Mention the discoverers of the following

(a) Nucleolus               (b) lysosome.

  1. What do you mean by resolving power of microscope?
  2. Explain the terms micron and angstrom units.
  3. State the significance of sedimentation coefficient.
  4. What are peroxysomes?
  5. Differentiate euchromatin from heterochromatin.
  6. What is oxidative phosphorylation?
  7. Comment on nucleolar organizer.
  8. Distinguish haplosis from meiosis.
  9. Give two examples for each

(a) Fixative                  (b) Vital stain.

Part B                                     (Answer any four)                 4 X 10 = 40

 

  1.  Explain the principle involved in electron microscopy.
  2. Briefly describe one suitable method for animal cell culture.
  3. Write notes on giant chromosomes and illustrate.
  4. Elucidate membrane permeability and transport.
  5.  With suitable illustrations explain polymorphism in lysosomes.
  6.  Highlight the sequential changes in Prophase I of Meiosis.

Part C                                    (Answer any two)                            2 X 20 = 40

  1.  Write an essay on biosynthesis of protein.
  2. Discuss cytology of cancer.
  3. Explain the colloidal properties of protoplasm.
  4. Write notes on (1) Membrane models   (2) Endoplasmic reticulum.

 

 

 

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Loyola College B.Sc. Zoology Nov 2006 Cell Biology Question Paper PDF Download

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             LOYOLA COLLEGE (AUTONOMOUS), CHENNAI – 600 034  B.Sc. DEGREE EXAMINATION – ZOOLOGY

AF 09

FIFTH SEMESTER – NOV 2006

         ZO 5500 – CELL BIOLOGY

(Also equivalent to ZOO 509)

 

 

Date & Time : 25-10-2006/9.00-12.00         Dept. No.                                                       Max. : 100 Marks

 

 

 

SECTION –A

 

I.Answer in a few sentences    ( 10 x 2=20 marks)

 

  1. Define numerical aperture and resolving power.

2.What is autoradiography ?

  1. Compare Prokaryotic and Eukaryotic ribosomes
  2. Mention an initiation codon and terminate codon.
  3. What is vital staining ? Cite two examples.
  4. Illustrate the ultra structure of cilium or flagellum .

7.Sketch any one model of nucleopore complex.

  1. What are histones ? Mention their significance.
  2. Draw a cell cycle and mention the role of each phase.
  3. Expand: MTOC and ETS.

 

SECTION –B

 

II Briefly Answer any FOUR of the following   (4 x 10 =40 Marks)  

 

  1. Explain the principle and application of electrophoresis.
  2. Highlight the significance of oil immersion and phase contrast microscope.
  3. Outline the significance of Mosaic Membrane model.
  4. Illustrate the intra cellular digestion and polymorphic forms of lysosome.
  5. Explain the process of DNA replication.

16.Enumerate the characteristics of cancer cells.

 

SECTION –C

 

III. Write any TWO  Detailed  answer  (2 x 20  = 40 Marks)

 

17.Expalin the principle and protocol of  cell fractionation and  ultra centrifugation.

  1. How are mRNA codons are translated into amino acids or proteins during

translation.

  1. Give an account on Chromosomes and Giant Chromosomes.
  2. Highlight the mechanism of mitotic cell division.

 

 

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

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                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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Loyola College B.Sc. Adv. Zoology & Bio-Technology April 2016 Cell Biology Question Paper PDF Download

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

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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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