JAMB Biology 2010 Objective — Question 29

Question 29 of 50 from the Joint Admissions and Matriculation Board (JAMB) Biology 2010 Objective paper, with the correct answer and a full explanation.

Mycorrhizae promote plant growth by

A. absorbing inorganic ions from the soilCorrect
B. protecting it from infection
C. helping it to utilize atmospheric nitrogen
D. serving as a growth regulator

Explanation

There is a mutualistic relationship between fungi and plants known as mycorrhiza; the fungi provide food for the plant while the hyphae of the fungi help the plant absorb water and minerals (inorganic ions) from the soil.

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