BACTERIA MORPHOLOGY MICRO BIOLOGY QUESTIONS

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21. A medium containing crystal violet dye plus sodium deoxycholate will allow
A. gram (-)ve intestinal bacteria to grow
B. gram (+)ve intestinal bacteria to grow
C. aquatic bacteria to grow
D. none of these

Answer: Option A

Explanation:

No answer description available for this question. Let us discuss.
22. Which of the following bacteria can grow in alkaline pH?
A. Shigella
B. Lactobacilli
C. Salmonella
D. Vibrio cholerae

Answer: Option D

Explanation:

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23. All bacteria that inhabit the human body are
A. heterotrophs B. chemolithotrophs
C. autotrophs D. phototroph

Answer: Option A

Explanation:

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24. When a substance is added to a liquid medium which inhibits the growth of unwanted bacteria and favors the growth of wanted bacteria, it is known as
A. differential medium
B. enriched medium
C. enrichment medium
D. selective medium

Answer: Option C

Explanation:

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25. Which of the following methods is most likely to be quantitative?
A. Dilution and plating
B. Gram staining
C. Wet mount
D. None of these

Answer: Option A

Explanation:

No answer description available for this question.
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