Did You Know? In 60 Seconds: Nitrogen Fixation

The video explains the importance of nitrogen in the atmosphere and its necessity for living organisms. It highlights that most nitrogen is unusable in its atmospheric form and describes how nitrogen-fixing bacteria convert it into a form that plants can absorb. This process allows nitrogen to enter the food chain, supporting life on Earth.

What is the primary component of Earth's atmosphere?

• Nitrogen

• Oxygen

• Carbon Dioxide

• Hydrogen

Why is nitrogen important for living organisms?

• It is used for respiration.

• It is a source of energy.

• It is a component of proteins and DNA.

• It helps in photosynthesis.

Which organisms are primarily responsible for nitrogen fixation?

• Algae

• Fungi

• Nitrogen-fixing bacteria

• Viruses

Where can nitrogen-fixing bacteria be found?

• In the atmosphere

• In the ocean

• In the soil or roots of certain plants

• In animal cells

What form of nitrogen do plants absorb?

• Nitrate

• Nitrogen gas

• Ammonia

• Nitrite