1. The tomato gets nitrogen from the soil, absorbed by its roots as nitrates or ammonium.
2. The nitrogen used for nitrate fertilizer is typically derived from atmospheric nitrogen (N₂) through the Haber-Bosch process, which converts N₂ and hydrogen into ammonia (NH₃), later processed into nitrate fertilizers.
3. The main steps of the nitrogen cycle depicted are: nitrogen fixation, nitrification, assimilation, ammonification, and denitrification.
4. Two types of animal waste are urine (containing urea) and feces (containing organic nitrogen compounds).
5. Three types of food that decomposers ingest to then produce ammonia (NH₃) are dead plant matter, dead animal tissue, and animal waste.
6. Nitrogen-fixing bacteria can be found in the root nodules of leguminous plants (like beans and peas) and free-living in the soil.
7. Acceleration is defined as the conversion of chemicals to rebuild living tissue; chemical compounds plants use for acceleration include amino acids, nucleotides, and chlorophyll precursors.
8. Substances animals can absorb for acceleration include amino acids, fatty acids, and simple sugars derived from digested food.
Parent Tip: Review the logic above to help your child master the concept of nitrogen cycle diagram worksheet.
