Nutrient Cycles Review

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 includes processes such as photosynthesis, respiration, decomposition, and combustion.

Front

What process in the carbon cycle involves plants converting carbon dioxide into glucose?

Back

Photosynthesis is the process where plants use sunlight to convert carbon dioxide and water into glucose and oxygen.

Front

What is combustion in the context of the carbon cycle?

Back

Combustion is the process of burning fossil fuels or biomass, which releases carbon dioxide into the atmosphere.

Front

What role do bacteria play in the nitrogen cycle?

Back

Bacteria are essential for processes like nitrification, denitrification, and ammonification, converting nitrogen into forms usable by plants.

Front

What is nitrification?

Back

Nitrification is the process by which ammonia is converted into nitrites and then into nitrates by bacteria, making nitrogen available to plants.

Front

What is the usable form of nitrogen for plants?

Back

Nitrates are the usable form of nitrogen that plants can absorb and utilize for growth.

Front

What is respiration in the context of nutrient cycles?

Back

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

Front

What is denitrification?

Back

Denitrification is the process by which bacteria convert nitrates back into nitrogen gas, releasing it into the atmosphere.

Front

What is ammonification?

Back

Ammonification is the process of converting organic nitrogen from dead organisms and waste into ammonia, which can then be used by plants.

Front

What organisms are involved in decomposition?

Back

Decomposers, such as bacteria and fungi, break down dead organic matter, returning nutrients to the soil.