Are chemosynthetic bacteria autotrophic ...

Are chemosynthetic bacteria autotrophic or heterotrophic ?

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Chemosynthetic bacteria are capable of oxidising various inorganic substances such as nitrates, nitrites and ammonia and use the energy released for their ATP production. So, they are autotrophs and not heterotrophs.

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State whether the given statements are true or false. I. Bacteria show both autotrophic and heterotrophic nutrition. II. Some of the bacteria are autotrophic. They may be photosynthetic autotrophic or chemosyntetic autotrophic. III. Heterotrophic nurition involves obtaining of readymade organic food from outside source.

Only I is true

I and II are true

I is true, II and III are false

All are true

Chemosynthetic bacteria are those bacteria

which synthesise food without light

which are unable to carry out chemical reactions

which carry out synthesis in light

which carry out photosynthesis

Chemosynthetic autotrophic bacteria :

are Nitrocystis and Anabaena

play great role in recycling of minerals

are important decomposers

more than one option is correct

Are chemosynthetic bacteria autotrophic or heterotrophic ?

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Chemosynthetic bacteria are those bacteria

Chemosynthetic autotrophic bacteria :

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