Bacteria and Gram Staining - Mock Test 2

Question 11

Cholera red reaction is identified by?

A) Sulphuric acid B) Nitric acid C) Hydrochloric acid D) Carbolic acid

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Question 12

Toxins or enzymes which are not produced by streptococcus pyrogens?

A) Hyaluronides B) Phosphate C) Hemolysin D) Streptokinase

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Question 13

Identify the obligate anaerobes?

A) Salmonella B) Vibrio cholera C) Cl. tetani D) Sarcinae

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Question 14

All of the following are energy source of bacteria except?

A) Oxidation of inorganic compounds B) Oxidation of organic compounds C) Absorption of heat D) Utilisation of visible light

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Question 15

All of the following are acid fast structures except?

A) Clostridium B) Bacterium spores C) Exoskeleton D) None of these

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Question 16

Which of the following are acid fast structures?

A) Mycobacteria B) Bacterial spores C) Nocardia D) All of these

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Question 17

Which of the following is the charachteristic of bacterial spore?

A) Highly refractile B) Usually dehydrated C) Sensitive to formaldehyde D) All of these

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Question 18

What is the function of bacterial capsule?

A) Production of organism from phagocytosis B) Helps in adherence of bacteria to surface in its environment C) Both a and b D) None of these

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Question 19

One flagelium at one end of the organ is called ?

A) Monotrichate B) Amphitrichate C) Iophotrichate D) Peritrichate

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Question 20

Techoic acid is ?

A) Found in the walls of Gram positive bacteria B) Provide receptors for phages C) Make up outer wall of Gram negative bacteria D) Influence the permeability of the membrane

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