What is the main process of the nitrogen cycle?
Nitrogen gas makes up 78% of the air around us. Nitrogen is recycled through nature in a process called the 'nitrogen cycle'. Organisms such as bacteria turn nitrogen into forms that plants can use to grow.
The Nitrogen Cycle
Nitrogen Fixation: the process of converting nitrogen gas in the atmosphere into a form of nitrogen, such as ammonia, that can be used by plants and animals. Nitrification: the process of converting ammonia into nitrates, which can be used by plants as a source of nitrogen. Denitrification: the process of converting nitrates back into nitrogen gas, which is then released into the atmosphere.
Nitrogen gas makes up 78% of the air we breathe, but it is not usable by plants until it is converted to ammonia or nitrates by bacteria, lightning, or industrial processes. Nitrogen is an important component of proteins, DNA, and hormones in living organisms. Nitrogen is a necessary element for all living things, but it can be toxic to some organisms in high concentrations.
Did you know?
Work together in pairs: Q: What is the main way nitrogen is returned to the atmosphere from living things?
Work together in pairs: Q: How does the nitrogen cycle help keep the environment healthy?
Brain break: Create a 3-dimensional drawing of a space station with at least five levels that includes a map of the interior of the station and a description of each level. Be sure to include information about the materials used to build the space station, the inhabitants of the station, and any special features it might have.
What is the first step of the nitrogen cycle?
- Nitrogen Fixation
Which of the following organisms are involved in the nitrogen cycle?
What is the main form of nitrogen in the atmosphere?
- Nitrogen Gas
What happens during the process of denitrification?
- Nitrogen is released into the atmosphere
- Nitrogen is converted into nitrate
- Nitrogen is converted into ammonia
- Nitrogen is converted into nitrite
What is the importance of the nitrogen cycle?
- It helps to regulate the levels of nitrogen in the atmosphere
- It helps to create new soil
- It helps to remove pollutants from the environment
- It helps to increase crop yields