Question

Which of the following is a correct statement?

• A. Cyanobacteria are a group of autotrophic organisms classified under Kingdom Monera.
• B. Bacteria are exclusively heterotrophic organisms
• C. Slime moulds are saprophytic organisms classified under Kingdom Monera.
• D. Mycoplasma have DNA, Ribosome and cell wall

Answer 1

Answer: (A)

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

Answer 2

The nutrition in bacteria is mainly autotrophic and heterotrophic. Phototrophic bacteria contain various pigments to synthesise their own food, while heterotrophic bacteria are dependent on other organisms for food. Parasitic bacteria fulfil their nutrition needs or requirements from the host cell. Slime moulds are saprophytes belonging to Kingdom Protista. Mycoplasma are prokaryotic organisms which do not possess a DNA or a cell wall.