BIOGEOCHEMICAL CYCLES

Front

What is the largest reservoir for water?

Back

The ocean.

Front

What happens when organisms die and decay?

Back

Their nitrogen returns to the soil as ammonium.

Front

What is the significance of carbon in organisms?

Back

It forms stable bonds with many elements and is the backbone of major macromolecules.

Front

Which process in the carbon cycle is responsible for the release of CO2 by animals, plants, and decomposers?

Back

Cellular respiration.

Front

The process of plants losing water through their leaves is called ____.

Back

Transpiration.

Front

What is a biogeochemical cycle?

Back

A biogeochemical cycle is the movement of elements and compounds through living organisms and the environment.

Front

What role do decomposers play in biogeochemical cycles?

Back

Decomposers break down dead organisms, returning nutrients to the soil.

Front

What is nitrogen fixation?

Back

Nitrogen fixation is the process of converting nitrogen gas from the atmosphere into ammonia or related compounds in soil.

Front

What is the role of photosynthesis in the carbon cycle?

Back

Photosynthesis converts carbon dioxide into organic compounds, primarily glucose, using sunlight.

Front

What is the water cycle?

Back

The water cycle is the continuous movement of water on, above, and below the surface of the Earth.