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What is the main gas exchanged during respiration? (2019)

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Question: What is the main gas exchanged during respiration? (2019)

Options:

  1. Oxygen
  2. Carbon dioxide
  3. Nitrogen
  4. Hydrogen

Correct Answer: Oxygen

Exam Year: 2019

Solution: 

Oxygen is the main gas that is taken in during respiration and is essential for cellular metabolism.

What is the main gas exchanged during respiration? (2019)

Practice Questions

Q1
What is the main gas exchanged during respiration? (2019)
  1. Oxygen
  2. Carbon dioxide
  3. Nitrogen
  4. Hydrogen

Questions & Step-by-Step Solutions

What is the main gas exchanged during respiration? (2019)
  • Step 1: Understand that respiration is a process that occurs in living organisms.
  • Step 2: Know that during respiration, organisms take in gases from the environment.
  • Step 3: Identify the main gas that is taken in during this process, which is oxygen.
  • Step 4: Recognize that oxygen is important for cellular metabolism, which is how cells produce energy.
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