Bacteria and Gram Staining - Mock Test 13

Question 121

Chlamydiae occur in?

A) Elementary bodies B) Reticulate bodies C) Complex structures D) a and b

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Question 122

Rickettsiae stained by this technique responds as?

A) Gram positive B) Gram negative C) Between positive and negative D) None of these

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Question 123

Cell-wall is?

A) Thick in Gram positive than Gram negative B) Thick in Gram negative than Gram positive C) Equal in both D) In Gram negative cell-wall is absent

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Question 124

Lipid contents is more in?

A) Gram negative bacteria B) Gram positive bacteria C) Same in both D) None of these

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Question 125

The action of alcohol during Gramstaining is?

A) Allows the color B) It adds color C) Decolorises the cells D) None of these

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Question 126

Gram negative bacteria appear as?

A) Pink B) Violet C) both a & b D) None of these

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Question 127

Gram positive bacteria appear as?

A) Pink B) Violet C) both a & b D) None of these

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Question 128

The percentage of alcohol used in Gramstaining is?

A) 75% B) 90% C) 60% D) 25%

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Question 129

The order of stains in Gram-staining procedure is?

A) Crystal violet, Iodine solution, Alcohol, Saffranine B) Iodine solution, Crystal Violet, Saffranine, Alcohol C) Alcohol, Crystal Violet, Iodine solution, Saffranine D) All of these

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Question 130

Endospores can be stained with?

A) Safranine B) Crystal violet C) Methylene blue D) Malachite green

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