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The Desulfovibrio bacterium breaks down ...

The Desulfovibrio bacterium breaks down organic matter (which it must have) and uses sulphate (not oxygen) as an electron acceptor. As a result, it produces hydrogen sulphide accounting for the 'rotten egg' smell of swamp mud, oxygen is a deadly poison to Desulfovibrio. We would call Desulfovibrio.

A

a facultatively aerobic chemoheterotroph

B

an obligately anaerobic chemoheterotroph

C

a facultatively anaerobic chemoautotroph

D

an obligately anaerobic chemoautotroph

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The correct Answer is:
B
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ARIHANT NEET-MONERA-Chapter exercises Taking it together ( Assorted questions of the chapter for advanced level practice)
  1. Which of the following is not correct ?

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  2. In prokaryotes , chromatophores are

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  3. The Desulfovibrio bacterium breaks down organic matter (which it must ...

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  4. The main difference between photosynthetic and chemosynthetic bacteria...

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  5. Auxotrophs differ from prototrophs in

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  6. Consider the following given bacteria and classify then as Gram positi...

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  7. The process (discovered in 1928 by F Griffith) by which a bacterium ac...

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  8. When DNA is exchanged via cytoplasmic bridges between two bacteria, th...

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  9. The process in which a part of DNA of dead bacterial cell is incorpora...

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  10. Bacterium Pseudomonas is useful as it can

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  11. The bacterium naturally not present in human alimentary canal is

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  12. The bacteria present in the guts of several ruminant animals such as c...

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  13. Clostridium butylicum has been used in the synthesis of

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  14. It is important to boil surgical instruments before using them in an o...

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  15. In unfavourable adverse conditions bacteria produce resting spores cal...

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  16. The water of river Ganga is purified by the

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  17. When a bacteriophage, in its lytic phase, carries some of the bacteriu...

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  18. Bacterial nucleoid consists of

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  19. Terramycin is obtained from:

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  20. Waksman got the Noble Prize for the discovery of

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