46.
Bacteria of genus Nitrosomonas use __________ as their electron source.
A. ammonia B. H2S
C. succinate D. light
Answer & Explanation
Answer: Option A
Explanation:
No answer description available for this question. Let us discuss.
View Answer Workspace Report Discuss in Forum
47.
All organisms require at least small amounts of carbondioxide, However, some can use CO2 as their sole source of carbon. Such organisms are termed as
A. autotrophs B. phototrophs
C. chemotrophs D. photo-organotrophs
Answer & Explanation
Answer: Option A
Explanation:
No answer description available for this question. Let us discuss.
View Answer Workspace Report Discuss in Forum
48.
The generation time of a culture that produces two generations per hour is
A. greater than that produces three generations per hour
B. lesser than that produces three generations per hour
C. equal to that produces three generations per hour
D. none of the above
Answer & Explanation
Answer: Option A
Explanation:
No answer description available for this question. Let us discuss.
View Answer Workspace Report Discuss in Forum
49.
Autotrophic bacteria are those which
A. make their own food
B. form a long chain glycocalyx
C. are highly susceptible to penicillin
D. produce a blue-green pigment
Answer & Explanation
Answer: Option A
Explanation:
No answer description available for this question. Let us discuss.
View Answer Workspace Report Discuss in Forum
50.
Which of the following organisms typically get their carbon for biosynthesis from organic compounds?
A. Aerobic, glucose-respiring bacteria (aerobic respiration)
B. Ammonia-oxidizing bacteria (chemolithotrophic bacteria)
C. Photosynthetic cyanobacteria (phototrophic metabolism)
D. None of the above
Answer & Explanation
Answer: Option A
Explanation:
No answer description available for this question.