Biogeochemical Cycle Review

Front

What is the main process by which nitrogen is fixed in the ecosystem?

Back

Nitrogen fixation occurs primarily in the soil, where certain bacteria convert atmospheric nitrogen into forms usable by plants.

Front

What are biogeochemical cycles?

Back

Biogeochemical cycles are pathways through which matter and elements cycle through both abiotic (non-living) and biotic (living) components of an ecosystem.

Front

How do plants remove carbon dioxide from the atmosphere?

Back

Plants remove carbon dioxide from the atmosphere during the process of photosynthesis.

Front

Which organisms are essential for nitrogen fixation?

Back

Bacteria are essential for nitrogen fixation, as they convert atmospheric nitrogen into forms that plants can use.

Front

How do animals obtain nitrogen?

Back

Animals obtain nitrogen by consuming other living organisms, which contain nitrogen in their proteins and nucleic acids.

Front

What role do decomposers play in biogeochemical cycles?

Back

Decomposers break down dead organic matter, returning nutrients to the soil and making them available for plants.

Front

What is photosynthesis?

Back

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

Front

What is the significance of the carbon cycle?

Back

The carbon cycle is significant because it regulates the levels of carbon dioxide in the atmosphere, which is crucial for maintaining Earth's climate.

Front

What is the role of fungi in ecosystems?

Back

Fungi decompose organic matter and form symbiotic relationships with plants, aiding in nutrient absorption.

Front

What is cellular respiration?

Back

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