Read the following statements carefully: (a) Bacteria reproduce mainly by fission. (b) All cyanobacteria can fix atmospheric nitrogen in specialized cells called heterocysts. (c) Chemosynthetic autotrophic bacteria oxidize various inorganic substances to produce ATP. (d) Slime moulds form a plasmodium under unfavourable conditions. (e) Mycoplasma are pathogenic to animals but not to plants. How many of the above stat

Step-by-step solution

Let us evaluate each statement based on NCERT facts: (a) Correct: Bacteria reproduce mainly by fission. (b) Incorrect: Not all, but only 'some' cyanobacteria (like Nostoc and Anabaena) can fix atmospheric nitrogen in specialized cells called heterocysts. (c) Correct: Chemosynthetic autotrophic bacteria oxidize inorganic substances (such as nitrates, nitrites, and ammonia) and use the released energy for ATP production. (d) Incorrect: Slime moulds form an aggregation called plasmodium under 'suitable' (favourable) c