Nitrogen Conversion and Fertilizer Impact

Nitrogen Conversion and Fertilizer Impact

Assessment

Interactive Video

Biology

9th - 10th Grade

Hard

Created by

Patricia Brown

FREE Resource

Inside Science TV explores the energy-intensive nature of farming due to artificial fertilizers. Researchers have discovered how bacteria use the nitrogenase enzyme to convert atmospheric nitrogen into plant food at room temperature, a process that could inspire greener alternatives. Using x-ray emission spectroscopy, scientists identified carbon as a key atom in nitrogenase, a surprising find. This discovery could lead to more sustainable fertilizers, reducing greenhouse gas emissions and energy consumption.

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10 questions

Show all answers

1.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What percentage of the world's energy is consumed by farming?

0.5%

3.5%

1.5%

2.5%

2.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Why do farmers rely heavily on artificial fertilizers?

They are more environmentally friendly.

They are rich in nitrogen, which is essential for plant growth.

They are easier to apply.

They are cheaper than natural fertilizers.

3.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is a major environmental concern associated with fertilizer production?

It uses renewable energy sources.

It requires minimal energy.

It produces large amounts of greenhouse gases.

It is inexpensive.

4.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the name of the enzyme that bacteria use to convert nitrogen from the air?

Nitrogenase

Amylase

Protease

Lipase

5.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

How does nature perform nitrogen conversion differently from industrial methods?

At room temperature and normal pressure

Using solar energy

Using wind energy

At high temperatures and pressures

6.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What was the challenge in identifying the atom at the heart of nitrogenase?

It was not present in the enzyme.

It was surrounded by a cluster of metal atoms.

It was too large to be seen.

It was too reactive.

7.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Which technique was used to identify the mystery atom in nitrogenase?

Nuclear magnetic resonance

X-ray diffraction

Mass spectrometry

X-ray emission spectroscopy

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