Nitrogen Cycle Crossword Puzzle

QUESTIONS LIST:

• nitrification : this process converts ammonia to nitrite and then to nitrate
• nitrogen fixation : this is the process by which nitrogen gas from the atmosphere is converted into ammonia or other nitrogen-containing compounds that can be used by plants.
• nitrogen : a key component of proteins, nucleic acids, and other important biological molecules, and without it, life would not be possible.
• rhizobium : a bacteria that can carry out nitrogen fixation
• assimilation : this is the process by which plants take up nitrogen in the form of nitrate or ammonia and use it to build organic molecules such as amino acids and proteins.
• ammonification : a process when plants and animals die or excrete waste, the nitrogen in their tissues is converted into ammonia by bacteria and fungi.
• denitrification : this is the process by which bacteria convert nitrate back into nitrogen gas, which is released into the atmosphere.