Which of the following is a correct statement?
Answer: (A) Cyanobacteria are a group of autotrophic organisms classified under Kingdom Monera.. Answer: (A) Cyanobacteria are autotrophic, classified under Kingdom Monera Solution: Cyanobacteria are prokaryotic photosynthetic autotrophs placed in Monera, so A is correct.
- 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
Correct Answer
(A) Cyanobacteria are a group of autotrophic organisms classified under Kingdom Monera.
Solution & Explanation
Answer: (A) Cyanobacteria are autotrophic, classified under Kingdom Monera Solution: Cyanobacteria are prokaryotic photosynthetic autotrophs placed in Monera, so A is correct. B is wrong—bacteria show extensive metabolic diversity and may be autotrophic or heterotrophic. C is wrong—slime moulds are saprophytic protists (Kingdom Protista), not Monera. D is wrong—Mycoplasma completely lack a cell wall. NCERT Reference: NCERT Class XI, Biological Classification, p.13, lines 26-28 — "cyanobacteria ... are photosynthetic autotrophs"