Matter and Energy in the Environment # 5

Front

What is the process by which plants absorb phosphorus?

Back

Plants absorb phosphorus through their roots in the form of phosphate ions.

Front

What is ammonification in the nitrogen cycle?

Back

Ammonification is the process where organic nitrogen is converted into ammonia by bacteria.

Front

What is denitrification?

Back

Denitrification is the conversion of nitrates into nitrogen gas or nitrous oxide by bacteria in the soil.

Front

What percentage of the atmosphere is made up of nitrogen?

Back

78% of the atmosphere is made up of nitrogen.

Front

What is nitrification in the nitrogen cycle?

Back

Nitrification is the process of converting ammonia into nitrites and then into nitrates by bacteria.

Front

What are the main components of soil?

Back

The main components of soil are minerals, organic matter, water, and air.

Front

What role do bacteria play in the nitrogen cycle?

Back

Bacteria play crucial roles in the nitrogen cycle, including nitrogen fixation, nitrification, and denitrification.

Front

What is the significance of phosphorus for plants?

Back

Phosphorus is essential for plant growth as it is a key component of DNA, RNA, and ATP.

Front

What is the difference between nitrogen fixation and denitrification?

Back

Nitrogen fixation is the conversion of nitrogen gas into ammonia, while denitrification is the conversion of nitrates back into nitrogen gas.

Front

How do plants obtain nitrogen?

Back

Plants obtain nitrogen primarily through their roots in the form of nitrates and ammonium.