Nitrogen, phosphorous, and sulfur Cycle

Front

What is Ammonification?

Back

Ammonification is the conversion of organic nitrogen from dead organisms and waste into ammonia by decomposers.

Front

Can plants and animals use nitrogen directly from the air?

Back

No, plants and animals cannot use nitrogen directly from the air.

Front

What is Nitrogen Fixation?

Back

Nitrogen fixation is the process of converting nitrogen gas (N2) from the atmosphere into ammonia (NH3) or related compounds in soil.

Front

What happens to inorganic phosphate released by weathering of rocks?

Back

It can become part of surface water, soil, or groundwater, and eventually contribute to new rock formation through sedimentation.

Front

What percentage of the atmosphere is composed of nitrogen gas?

Back

78% of the atmosphere is composed of nitrogen gas.

Front

What is the role of decomposers in the nitrogen cycle?

Back

Decomposers break down dead organic matter, releasing ammonia into the soil through ammonification.

Front

What is the significance of phosphorus in living organisms?

Back

Phosphorus is essential for the formation of DNA, RNA, ATP, and phospholipids, which are crucial for cellular functions.

Front

How do plants absorb phosphorus?

Back

Plants absorb phosphorus from the soil in the form of inorganic phosphate through their roots.

Front

What is denitrification?

Back

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

Front

What is the phosphorus cycle?

Back

The phosphorus cycle is the movement of phosphorus through the lithosphere, hydrosphere, and biosphere, involving processes like weathering, absorption by plants, and sedimentation.