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Gas Exchange: Diffusion & Partial Pressure Gradients

Instructions:

Choose an answer and hit 'next'. You will receive your score and answers at the end.

question 1 of 3

Which of the following best explains why someone may experience shortness of breath on top of a mountain?

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1. Consider the following mixture of gases: 20% oxygen, 40% carbon dioxide, and 40% nitrogen. If the total pressure is 1000 mmHg, then what is the partial pressure of oxygen?

2. Which of the following decreases the concentration of oxygen in the alveolar air?

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About This Quiz & Worksheet

In particular, the quiz will ask you about the various effects of partial pressure in different situations. Some of the questions will require you to calculate the partial pressure as well.

Quiz & Worksheet Goals

The quiz will ask you about:

  • Calculating partial pressure
  • What accounts for feeling short of breath on top of a mountain
  • Henry's Law
  • Alveolar air

Skills Practiced

The quiz will help you practice the following skills:

  • Reading comprehension - ensure that you draw the most important information from the related diffusion and partial pressure gradients lesson
  • Problem solving - use acquired knowledge to solve partial pressure practice problems
  • Information recall - access the knowledge you've gained regarding Henry's Law

Additional Learning

After you complete the quiz, peruse our related lesson called Gas Exchange: Diffusion & Partial Gradients. The lesson covers information such as:

  • The diffusion of oxygen and carbon dioxide
  • The rate of diffusion
  • Dalton's Law
  • The partial pressure of oxygen when breathing
  • Henry's Law
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