JAMB Biology 2020 Objective — Question 24
Question 24 of 40 from the Joint Admissions and Matriculation Board (JAMB) Biology 2020 Objective paper, with the correct answer and a full explanation.
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24. In what part of a leguminous plant can a bacterium like Rhizobium leguminosarium be found? (a) Root nodules (b) spongy mesophyll of leaf (c) palisade mesophyll of leaf (d) Internodes
- A. A. Root nodulesCorrect
- B. B. spongy mesophyll of leaf
- C. C. palisade mesophyll of leaf
- D. D. Internodes
Explanation
Rhizobium leguminosarium is a symbiotic nitrogen-fixing bacterium. It inhabits the root nodules of leguminous plants; it gets food and shelter and in turn helps the plant in nitrogen fixation.
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