Multiple choice

Which of the following statements are correct with reference to the action of bacteria?

A. Ammonifying bacteria release ammonia in the soil by decay and putrefaction. B. Nitrifying bacteria convert ammonia to nitrates directly. C. Nitrogen fixing bacteria can be symbiotic or non-symbiotic. D. Acetobacter aceti helps in the production of acetone. E. Mycoderma aceti converts sugar solution to acetic acid.

  1. A, C and E

  2. Only A and C

  3. B, C and D

  4. Only D and E

Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Ammonifying bacteria release ammonia in the soil by decay and putrefaction. Nitrogen fixing bacteria can be symbiotic or non-symbiotic. Mycoderma aceti converts sugar solution to acetic acid.

Keep practicing — related questions