1.
Which of the following bacteria lack a cell wall and are therefore resistant to penicillin?
A. Cyanobacteria B. Mycoplasmas
C. Bdellovibrios D. Spirochetes
Answer & Explanation
Answer: Option B
Explanation:
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2.
A cluster of polar flagella is called
A. lophotrichous B. amphitrichous
C. monotrichous D. petritrichous
Answer & Explanation
Answer: Option A
Explanation:
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3.
Flagella move the cell by
A. many flagella beating in a synchronous, whip-like motion
B. an individual flagellum beating in a whip-like motion
C. spinning like a propeller
D. attaching to nearby particles and contracting
Answer & Explanation
Answer: Option C
Explanation:
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4.
The protein from which hook and filaments of flagella are composed of, is
A. keratin B. flagellin
C. gelatin D. casein
Answer & Explanation
Answer: Option B
Explanation:
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5.
The cooci which mostly occur in single or pairs are
A. Streptococci
B. Diplococci
C. Tetracocci
D. None of these
Answer & Explanation
Answer: Option B
Explanation:
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