What Is Happening In The Nitrogen Cycle?

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| By Cgarcia02

Cgarcia02

Community Contributor

Quizzes Created: 1 | Total Attempts: 256

Questions: 5 | Attempts: 256 | Updated: Oct 16, 2024

1.

Nitrogen is a key element in organisms and also makes up about 80% of the earth's atmosphere.
- A.
  
  True
- B.
  
  False
Correct Answer
A. True

Explanation
Nitrogen is an essential element for living organisms as it is a key component of proteins, nucleic acids, and other important biomolecules. Additionally, nitrogen gas makes up approximately 80% of the Earth's atmosphere. Therefore, the statement is true.

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2.

All plants and animals need nitrogen to make amino acids, proteins and DNA.
- A.
  
  True
- B.
  
  False
Correct Answer
A. True

Explanation
Plants and animals require nitrogen for the synthesis of essential molecules such as amino acids, proteins, and DNA. Nitrogen is a crucial component of these biomolecules, and without it, the growth, development, and functioning of living organisms would be severely impaired. Therefore, the statement that all plants and animals need nitrogen to make amino acids, proteins, and DNA is true.

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3.

Plants and animals can use the nitrogen in the atmosphere to make what they need to servive.
- A.
  
  True
- B.
  
  False
Correct Answer
B. False

Explanation
Plants and animals cannot directly use the nitrogen in the atmosphere to meet their survival needs. While atmospheric nitrogen is abundant, it is in a form that is not readily usable by most organisms. Instead, plants and animals rely on nitrogen compounds that are present in the soil or water, which they obtain through processes like nitrogen fixation or consuming other organisms. Thus, the statement that plants and animals can use atmospheric nitrogen for their survival is false.

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1
0
4.

All bacteria in soil and algae in water can fix nitrogen.
- A.
  
  True
- B.
  
  False
Correct Answer
B. False

Explanation
The statement is false because not all bacteria in soil and algae in water can fix nitrogen. Only certain types of bacteria, known as nitrogen-fixing bacteria, have the ability to convert atmospheric nitrogen into a usable form for plants. Algae, on the other hand, do not have the ability to fix nitrogen. Therefore, the statement is incorrect.

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5.

Fill the blanks in the best you can. Nitrification - *This will be used two times.* fixation lightning Fertilizers Bacteria fixation Denitrifcation Plant Consumption

What Is Happening In The Nitrogen Cycle?

Nitrogen is a key element in organisms and also makes up about 80% of the earth's atmosphere.

All plants and animals need nitrogen to make amino acids, proteins and DNA.

Plants and animals can use the nitrogen in the atmosphere to make what they need to servive.

All bacteria in soil and algae in water can fix nitrogen.

Fill the blanks in the best you can. Nitrification - *This will be used two times.* fixation lightning Fertilizers Bacteria fixation Denitrifcation Plant Consumption

Fill the blanks in the best you can. Nitrification - This will be used two times. fixation lightning Fertilizers Bacteria fixation Denitrifcation Plant Consumption