AIIMS2018Botany-Biology

AIIMS 2018 Botany Biology MCQ Question

Type: MCQ-conceptual-Medium-Class 11

The bacteria which oxidize various inorganic substances and use the released energy for the synthesis of food are called _______________.

A

Archaebacteria

B

Heterotrophic bacteria

C

Photosynthetic autotrophic bacteria

D

Chemosynthetic autotrophic bacteria

Correct Answer

Option D

Detailed Explanation

The correct answer is D) Chemosynthetic autotrophic bacteria because these bacteria are capable of oxidizing inorganic substances, such as hydrogen sulfide or ammonia, to release energy. They utilize this energy to convert carbon dioxide into organic compounds, essentially synthesizing their own food through chemosynthesis, rather than relying on sunlight or organic matter as in heterotrophic bacteria.

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