from food. Mainly by cleaving proteins and nucleic acids from food.
Most organisms obtain nitrogen in the form of nitrate (NO3-) or ammonium (NH4+). These forms of nitrogen are usually present in the soil and can be taken up by plants. Animals then obtain nitrogen by consuming plants or other animals.
Plants and animals cannot directly use atmospheric nitrogen (N2 gas) for their growth and development. Instead, certain bacteria in the soil or in the roots of plants can convert atmospheric nitrogen into a form that plants can absorb, such as nitrate or ammonium. Plants then take up these nitrogen compounds through their roots and use them to build proteins and other essential molecules. Animals obtain nitrogen by consuming plants or other animals that have already incorporated nitrogen into their tissues.
Plants do not actually get their nitrogen from the atmosphere. They get it in compounds in the soil through their roots. Some plants form symbiotic relationships with bacteria in the soil. The bacteria draw nitrogen from the air and form nitrogen compounds. The plants can then use the nitrogen.
Root nodules contain nitrogen fixing bacteria which help a plant to obtain nitrogen compounds, which are needed for the production of protein (and although plants do not contain as much protein as animals do, they still need a certain amount of it).
Plants get the nitrogen they need to make proteins and DNA by absorbing it from the soil through their roots in the form of nitrates or ammonium. Animals, including humans, obtain nitrogen by consuming plants or other animals that have already assimilated nitrogen into their bodies. This nitrogen is then used to synthesize proteins and nucleic acids in our cells.
Animals obtain nitrogen primarily through the consumption of plants or other animals that contain nitrogen-containing compounds, such as proteins. They break down these compounds during digestion and reuse the nitrogen to build their own proteins and other essential molecules.
Nitrogen gas is fairly inert and so is difficult for organisms to process. Instead, animals must get usable nitrogen compounds from their food.
Carnivores obtain the nitrogen compounds they need by consuming other animals that have already built these compounds in their bodies through their diet. The nitrogen compounds essential for their growth and metabolism are then assimilated from the proteins found in the animal tissues that they consume.
Plants get it from bacteria which live associated with their roots who take atmospheric nitrogen and fixate it (nitrogen cycle). Animals can only get it by ingesting organic compounds which contain nitrogen, such as plants and other animals which have eaten plants.
Since 78.08% of the Earth's atmosphere is composed of nitrogen, yes. But it cannot be used in biological processes. The nitrogen animals use comes in the form of nitrogen compounds acquired from food. Ultimately, the nitrogen used by most living things is produced by nitrogen-fixing bacteria which do use nitrogen from the atmosphere, these compounds are then taken in and used by plants.
Animals obtain nitrogen by eating plants which have absorbed nitrogen from the soil.
mostly from food.
Nitrogen
Most organisms obtain nitrogen in the form of nitrate (NO3-) or ammonium (NH4+). These forms of nitrogen are usually present in the soil and can be taken up by plants. Animals then obtain nitrogen by consuming plants or other animals.
When forming compounds, nitrogen can obtain up to three electrons from other atoms.
Animals obtain the nitrogen needed to make proteins and nucleic acids by consuming foods that contain nitrogen, such as plants or other animals. The nitrogen is then broken down and used by the body to build the necessary molecules for growth and repair.
Nitrogen enters plants primarily through the soil in the form of nitrates and ammonium, which are produced by the decomposition of organic matter and through nitrogen-fixing bacteria that convert atmospheric nitrogen into usable forms. Plants absorb these nitrogen compounds through their roots, incorporating them into amino acids and proteins. Animals obtain nitrogen by consuming plants or other animals, thereby integrating the nitrogen into their own biological systems. This nitrogen cycle is crucial for maintaining healthy ecosystems and supporting life.