12 Questions
What is the term for the layer of soil surrounding plant roots?
Rhizosphere
How do plants acquire nitrogen?
Through soil bacteria
What is the role of Rhizobium bacteria in leguminous plants?
They fix nitrogen
What percentage of plant families have ectomycorrhizae?
10%
What is the function of arbuscular mycorrhizae?
They have a high surface area for metabolite exchange between fungus and plant
What is the importance of microbes in topsoil?
They are important for plant nutrition
What is the function of the fungal sheath formed by ectomycorrhizae?
To aid in nutrient exchange between fungus and plant
Which type of mycorrhizae is found in the majority of plant species?
Arbuscular mycorrhizae
How do leguminous plants benefit from the presence of Rhizobium bacteria?
They are able to fix nitrogen
What is the percentage of plant families that have ectomycorrhizae?
10%
What is the function of the rhizosphere?
To aid in water absorption
Which type of mycorrhizae forms a visible fungal sheath around plant roots?
Ectomycorrhizae
Study Notes
- Microbes in topsoil are important for plant nutrition.
- The layer of soil surrounding plant roots is called the rhizosphere.
- Plants acquire nitrogen through lightning or soil bacteria.
- Rhizobium bacteria reside in root nodules of leguminous plants and fix nitrogen.
- Ectomycorrhizae form a visible fungal sheath around plant roots and are found in 10% of plant families.
- Arbuscular mycorrhizae are found in 85% of plant species and have a high surface area for metabolite exchange between fungus and plant.
Test your knowledge on the fascinating world of soil microbes and their interactions with plants! From the rhizosphere to nitrogen fixation, this quiz covers key concepts such as ectomycorrhizae and arbuscular mycorrhizae. Sharpen your understanding of the vital role that soil bacteria and fungi play in plant nutrition and growth.
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