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Question: Answered & Verified by Expert
Which of the following statement is correct?
BiologyBiological ClassificationNEET
Options:
  • A All bacteria are heterotrophic
  • B Bacteria are either heterotrophic or chemoautotrophic
  • C Bacteria are either heterotrophic, chemoautotrophic or photoautotrophic
  • D Bacteria are either chemoautotrophic or photoautotrophic
Solution:
1886 Upvotes Verified Answer
The correct answer is: Bacteria are either heterotrophic, chemoautotrophic or photoautotrophic
Bacteria (Greek word "bacterion" meaning small stick) belong to the kingdom Monera, they are microscopic organisms mostly ranging between 1-5 μm. They are autotrophic as well as heterotrophic.

Autotrophic bacteria can derive their nutrition either through sunlight (photoautotrophic) or through certain chemicals (chemoautotrophic). Heterotrophic bacteria can derive their nutrition from decaying matter (decomposer) or they may take nutrition from host (parasitic). Bacteria show great diversity in their mode of nutrition.

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