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Microbiology > MCQs > Flashcards

MCQs Flashcards

1
Q

sir alexander Fleming found penicillium produced what antibiotic active against?

A

staphylococcus aureus

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2
Q

penicillium consists of :

A

-acytl chain
-beta lactam ring
- thiazoidine ring

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3
Q

autolysins responsible for ?

A

penicillin being bacteriacidal

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4
Q
  1. The minimum inhibitory concentration of an antibiotic is:
A

lowest concentration of an antibiotioc that will stop the growth of a bacterium

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5
Q

what physician work hand washing reducing no. of children dying at birth?

A

ignaz semmelwiess

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5
Q

antigens can serve as growth promoters in;

A

cattle in the usa

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6
Q

who was the first person to observe bacteria in a microscope?

A

antoni van leeuwenhoek

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6
Q

what is a biofilm model?

A

flow cell

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7
Q

beta lactams are:

A

a class of antibiotics

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7
Q

free living bacteria are called?

A

planktonic

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8
Q

external structure of prokaryotes help adhere substances to the environment?

A

fimbriae

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9
Q

what type of medium inhibit growth?

A

selective media

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10
Q

duplication time for myobacterium tuberculosis?

A

792 mins

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10
Q

minimum nutrients required for growth is:

A

C, H, N ,O,P ,S

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11
Q

what component represents a typical virus partical?

A

genome, capsid, matrix, envelope

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12
Q

a capsid may be?

A

naked icosahedral

12
Q

what represents a virus transmission?

A

vector-bome

12
Q

one of the steps in virus replication

A

transcription

12
Q

what do eukaryotes have that prokaryotes not?

A

nucleus

12
Q

two types of parokaryotic organisms?

A

bacteria and archea

13
Q

typical size for eukaryotic cells?

A

10-100

14
Q

what organism is the target of many antibacterial drugs?

A

ribosomes

15
Q

what is not found in the wall od the eukaryotics

A

peptidoglycan

16
Q

tuberculosis is transmitted by?

A

air

17
Q

what disease is not spread by a common source?

A

measles

18
Q

what is not a vector important in disease transmission?

A

fomites

18
Q

how is treponema pallidum transmitted?

A

person to person contact

19
Q

what is a potential resivour for rabies ?

A

bats

20
Q

what is anon living osurce of an infectous agent that infects many people is called a?

A

vehcile

21
Q

what is a type of asexual spore?

A

sporangiospores

21
Q

what is amanita muscaria commonly known as?

A

fly agaric

21
Q

what is symbiotic association between fungus and the root of a plant called?

A

a mycorrhiza

22
Q

what is a nitrogen-fixing gerea forms heterocysts?

A

anabeana

Microbiology (10 decks)

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