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What is the role of legumes in nitrogen fixation?

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Question: What is the role of legumes in nitrogen fixation?

Options:

  1. They absorb nitrogen from the soil
  2. They host nitrogen-fixing bacteria
  3. They produce more oxygen
  4. They enhance photosynthesis

Correct Answer: They host nitrogen-fixing bacteria

Solution: 

Legumes form symbiotic relationships with nitrogen-fixing bacteria, allowing them to utilize atmospheric nitrogen.

What is the role of legumes in nitrogen fixation?

Practice Questions

Q1
What is the role of legumes in nitrogen fixation?
  1. They absorb nitrogen from the soil
  2. They host nitrogen-fixing bacteria
  3. They produce more oxygen
  4. They enhance photosynthesis

Questions & Step-by-Step Solutions

What is the role of legumes in nitrogen fixation?
  • Step 1: Understand that legumes are a type of plant, like beans and peas.
  • Step 2: Learn that nitrogen is an important nutrient for plants, but they cannot use it directly from the air.
  • Step 3: Know that some bacteria can take nitrogen from the air and convert it into a form that plants can use.
  • Step 4: Realize that legumes can form a special partnership with these nitrogen-fixing bacteria.
  • Step 5: Understand that in this partnership, the bacteria live in the roots of the legumes and help them get nitrogen.
  • Step 6: In return, the legumes provide food and shelter to the bacteria.
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