WAEC Biology 2013 Objective — Question 39
Question 39 of 60 from the West African Examinations Council (WAEC) Biology 2013 Objective paper, with the correct answer and a full explanation.
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The bacteria that reduce nitrates in the soil into gaseous nitrogen are referred to as
- A. nitrifying bacteria
- B. denitrifying bacteriaCorrect
- C. putrefying bacteria
- D. saprophytic bacteria
Explanation
Bacteria that release the soil nitrate into gaseous nitrogen are called denitrifying bacteria. A typical example is pseudomonas denitrificans.
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