[Campbell Biology P.867] Based on Figure 37.14 and the accompanying text, which of the follo... | Practice Question

Based on Figure 37.14 and the accompanying text, which of the following is a primary function of mycorrhizal fungi in their association with plant roots?

  • A: Synthesizing sugars for the plant through photosynthesis.
  • B: Providing structural support to the plant stem.
  • C: Enhancing the absorption of water and minerals, especially phosphorus, for the plant.
  • D: Protecting the plant against herbivores by producing toxins.

Explanation

The introductory descriptions for both Ectomycorrhizae and Arbuscular Mycorrhizae clearly state their role in 'absorbing water and minerals, especially phosphorus' and 'nutrient swapping' or 'nutrient transfer between the fungus and the plant.' This is their fundamental mutualistic benefit.