GROWTH AND NUTRITION OF BACTERIA QUESTIONS

21.

The reproduction by budding occur in
A.     Rhodopseudomonas acidophila
B.     Hyphomicrobium vulgare
C.     Bacillus subtilis
D.     Both (a) and (b)
Answer & Explanation

Answer: Option D

Explanation:

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22.

Starvation proteins are produced by a culture during which of the following segments of the growth curve?
A.     Lag phase
B.     Exponential phase
C.     Stationary phase
D.     Death phase
Answer & Explanation

Answer: Option C

Explanation:

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23.

The cell reproduction in bacteria may occur by
A.     binary fission
B.     budding
C.     fragmentation
D.     all of these
Answer & Explanation

Answer: Option D

Explanation:

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24.

During exponential growth, the growth rate is
A.     number of generations per unit time
B.     reciprocal of generation time
C.     both (a) and (b)
D.     none of these
Answer & Explanation

Answer: Option B

Explanation:

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25.

A spore differs from an actively replicating bacterium in that the spore
A.     is produced during a process involving asymmetric division
B.     is able to withstand more extreme conditions than the replicating cell
C.     is metabolically inactive
D.     all of the above
Answer & Explanation

Answer: Option D

Explanation:

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