Question

Which of these occurs through symbiotic nitrogen fixation?

The plant benefits from using an endless source of nitrogen.
The soil benefits from being naturally fertilized.
Bacteria benefit from using photosynthates from the plant.
All of the above occur.

Answer 1

Symbiotic nitrogen fixation is mutually beneficial, allowing plants to access an endless supply of nitrogen, improving soil fertility, and providing bacteria with energy sources and habitat. So the correcct option is ' All of the above occur'.

Step-by-step explanation:

Symbiotic nitrogen fixation is a natural process that brings multiple benefits. Plants benefit from an endless supply of nitrogen due to the ability of certain bacteria, known as rhizobia, to convert atmospheric nitrogen into a form that plants can use. Furthermore, the soil benefits from being naturally fertilized as the fixed nitrogen increases soil fertility. At the same time, the bacteria involved benefit from using photosynthates, which are carbohydrates produced by the plant during photosynthesis, and from having a protected living environment. Consequently, all of the statements listed in the question occur: the plant, the soil, and the bacteria all receive significant advantages from symbiotic nitrogen fixation.

Answer 2

All of the above occur.

Step-by-step explanation:

Symbiotic Nitrogen Fixation (BNF) is a natural process that occurs in combinations of plants with diazotrophic bacteria. Its main product, nitrogen, is an essential nutrient for plant growth and development. The nutrient is captured from the air and fixed by diazotrophic bacteria found in many soil types. In the roots, noduliferous bacteria generally have high specificity for each plant species, being common, for example, the symbiosis between plants of the Leguminosae family and diazotrophic bacteria known as rhizobia.

This fixation process has many positive points, among which we can mention that in this process the plant benefits from the use of an infinite source of nitrogen, the soil benefits from being naturally fertilized and the bacteria from the photosynthesis of the plant. plant.