JAMB Biology 2023 Objective — Question 12

Question 12 of 40 from the Joint Admissions and Matriculation Board (JAMB) Biology 2023 Objective paper, with the correct answer and a full explanation.

The bacteria that convert soil nitrate into atmospheric nitrogen are called

A. nitrifying bacteria
B. denitrifying bacteriaCorrect
C. putrefying bacteria
D. saprophytic bacteria

Explanation

Denitrifying bacteria (e.g. Pseudomonas denitrificans) convert soil nitrate back into atmospheric nitrogen, completing the nitrogen cycle.

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