Fundamentholfundamenthol
NEET2022Biology
Q.

Which of the following is a correct statement?

  1. A

    Cyanobacteria are a group of autotrophic organisms classified under Kingdom Monera.

  2. B

    Bacteria are exclusively heterotrophic organisms.

  3. C

    Slime moulds are saprophytic organisms classified under Kingdom Monera.

  4. D

    Mycoplasma have DNA, Ribosome and cell wall

Solution

Cyanobacteria (blue-green algae) are prokaryotic photoautotrophs that fix carbon dioxide using oxygenic photosynthesis. They are placed in Kingdom Monera. Statement (1) is correct.

Bacteria are nutritionally diverse: autotrophic, heterotrophic, photosynthetic, chemosynthetic. Slime moulds are classified under Kingdom Protista, not Monera. Mycoplasmas lack a cell wall. So options (2), (3), and (4) are incorrect.

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