Carbon and Nitrogen Cycle

Front

What is the Carbon Cycle?

Back

The Carbon Cycle is the process by which carbon is exchanged among the atmosphere, land, water, and living organisms. It involves processes like photosynthesis, respiration, decomposition, and combustion.

Front

What is the Nitrogen Cycle?

Back

The Nitrogen Cycle is the series of processes by which nitrogen and its compounds are interconverted in the environment and in living organisms, including nitrogen fixation, nitrification, and denitrification.

Front

Where does nitrogen go once it is in the soil?

Back

Nitrogen is absorbed by the roots of plants.

Front

What are nitrogen-fixing bacteria?

Back

Nitrogen-fixing bacteria are microorganisms that convert atmospheric nitrogen into ammonia, which can be used by plants. They often live in nodules on the roots of legumes.

Front

Why do all organisms need nitrogen?

Back

All organisms need nitrogen to live and grow, as it is a key component of amino acids, proteins, and nucleic acids.

Front

How is nitrogen 'fixed' into a usable form for plants?

Back

Nitrogen is fixed into a usable form for plants through the action of bacteria and lightning.

Front

What role do plants play in the oxygen cycle?

Back

Plants produce oxygen as a byproduct of photosynthesis, which is then used by animals and other organisms for respiration.

Front

What is photosynthesis?

Back

Photosynthesis is the process by which green plants and some other organisms use sunlight to synthesize foods with the help of chlorophyll, converting carbon dioxide and water into glucose and oxygen.

Front

What is respiration in the context of the carbon cycle?

Back

Respiration is the process by which organisms convert glucose and oxygen into energy, releasing carbon dioxide and water as byproducts.

Front

What is decomposition?

Back

Decomposition is the process by which organic substances are broken down into simpler organic or inorganic matter, releasing nutrients back into the soil.