LOYOLA COLLEGE (AUTONOMOUS), CHENNAI – 600 034

IB 28

B.Sc.  DEGREE EXAMINATION –PLANT BIOLOGY & PLANT BIO-TECH.

FIFTH SEMESTER – APRIL 2007

PB 5401 – MEDICAL MICROBIOLOGY

 

 

Date & Time: 03/05/2007 / 1:00 – 4:00          Dept. No.                                                     Max. : 100 Marks

 

 

PART A

Answer all the following questions                                                                         (20 marks)

1. Choose the correct answer (5 x 1 = 5 )

 

1. Name the person who coined the term chemotherapy.
2. a) Lister b) Leewenhock    c) Lederberg d) Lille
3. An example of a semisynthetic drug is
4. a) sulphonamide b) ampicillin c) penicillin      d) bacitricin.
5. A disease which runs a rapid and severe course with distinct symptoms is called
6. a) chronic b) latent c) acute      d) localised
7. TB is caused by the bacterium
8. a) Corynebacterium b) Clostridium c) Meningococcus d) Mycobacterium
9. Which among the following is a sexually transmitted disease.
10. a) syphilis b) typhoid c) cholera d) plague

 

 

1. State whether the following statements are True or False (5 x 1 = 5 )
2. Cold sterilization  refers to killing microbes using low temperatures.
3. Streptomycin is obtained from Streptomyces griseus.
4. Vaccination comes under passive immunity.
5. Chicken pox is a viral disease.
6. Malaria is caused by

 

 

III. Complete the following                                                                              (5 x 1 = 5)

11. Pasteurization was proposed by ________.
12. If a disease spreads all over the body affecting various parts, it is called ____ infection .
13. Penicillin is obtained from the fungus______.
14. Rice water stool is the most prominent symptom of ______.
15. Fungal infections of skin are called _____infections. .

 

 

 

1. Answer the following in one or two sentences. (5 x 1 = 5)
2. Write down any two of Koch’s postulates.
3. What is Crede’s method ?
4. Distinguish between endemic and pandemic disease.
5. Name the causal organism of tetanus. Add a note on symptoms.
6. Write down any 2 symptoms of gonorrhoea,.

 

PART B

 Answer any five of the following each in about 350 words.                           (5 x 8 = 40)

21. Write down the importance of radiation as a method of control.
22. Mention the source, mode of action , spectrum of activity of any two antibiotics.
23. Give an outline of immunity.
24. Discuss the symptoms, treatment and control of tuberculosis.
25. Give a schematic representation only of the disease cycle of malarial parasite.
26. Expand the following with a footnote each.
27. LTH ii. BCG iii. AVS           iv.  NmEP
28. Write about the gaseous chemosterilizers.
29. Mention the contributions of any four microhiologists to medical microbiology.

PART C

Answer any two of the questions in about 1500 words. Draw necessary diagrams     (2 x 20 = 40)

 

29. a) Describe the physical methods of control of microbes

OR

1. Write about any four antigen – antibody reactions.

 

30. a) Write an essay on the causal organism , mode of transmission, symptoms and treatment of AIDS.                                           OR
31. Write short notes on
32. ameobiasis (10)
33. exotoxins (10)

 

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