The symbiotic relationship between plant roots and mycorrhizae fungi is an example of mutualism true or false

True.

Explanation:

Mycorrhizae play important roles in plant nutrition, soil biology and soil chemistry. These are fungi that colonize plant roots and extend far into the soil. The association with most plants is generally mutualistic, but in certain cases with certain species, mycorrhizae may be very parasitic in the host plants.

“Myco” – “rhiza” literally means “fungus” – “root” in Latin

Approximately 95% of plant species on the planet form a symbiotic relationship with the beneficial mycorrhizae fungi.

The plant makes organic molecules such as sugars by photosynthesis and supplies them to the fungus, and the fungus supplies to the plant water and mineral nutrients, such as phosphorus, taken from the soil.

This answer is not on a Wiki! Nor is it on the internet, this is one of the things you learn in AG Science classes.

(I'm stating this because a admin removed this answer and gave me a warning)

enzyme active site and substrate specificity

enzymes bind with chemical reactants called substrates. there may be one or more substrates for each type of enzyme, depending on the particular chemical reaction. in some reactions, a single-reactant substrate is broken down into multiple products