Cells and Cycles of Matter

Front

What is the role of denitrifying bacteria in the nitrogen cycle?

Back

Denitrifying bacteria convert ammonia and nitrates into N2 gas, completing the nitrogen cycle.

Front

What process do plants use to absorb and store energy from sunlight?

Back

Photosynthesis is the process by which plants absorb and store energy from sunlight.

Front

Where do large trees primarily obtain their mass?

Back

Large trees get most of their mass from carbon dioxide in the atmosphere.

Front

Why is phosphorus important in living cells?

Back

Phosphorus is essential for making DNA and RNA in living cells.

Front

How do carbon-based nutrients enter the soil?

Back

Carbon-based nutrients get into the soil when bacteria break down molecules from animals.

Front

What is photosynthesis?

Back

Photosynthesis is the process by which green plants use sunlight to synthesize foods with the help of chlorophyll.

Front

What is the carbon cycle?

Back

The carbon cycle is the process through which carbon is exchanged between the atmosphere, land, water, and living organisms.

Front

What are decomposers?

Back

Decomposers are organisms that break down dead or decaying organic material, returning nutrients to the soil.

Front

What is cellular respiration?

Back

Cellular respiration is the process by which cells convert glucose and oxygen into energy, carbon dioxide, and water.

Front

What is the significance of the nitrogen cycle?

Back

The nitrogen cycle is crucial for converting nitrogen from the atmosphere into forms usable by living organisms.