Name: ____________________________ Pd: ____ Date: ________
TRACE THE PATH OF AN OXYGEN MOLECULE
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Listen carefully to your teacher’s instructions.
Your teacher will instruct you on how to set up the room and what roles to play.
Pay careful attention so that you can answer the questions after the activity!
When the activity is finished follow your teacher’s instructions to put the room back as it was.
Respond to the following questions after the activity:
1) What did the room represent?
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2) What represented the nose?
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3) What is the nose’s function in the respiratory system?
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4) What represented the alveoli?
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5) What path did the oxygen molecule take between the nose and the alveoli?
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6) What organ powers this?
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7) What happens to the oxygen molecule at the alveoli?
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8) How does diffusion describe this process?
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9) How does the oxygen molecule get to the arm cell?
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10) Where else could the red blood cell have taken the oxygen molecule?
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11) What happens at the arm cell?
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12) Where did the glucose come from?
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13) What organ in the digestive system is responsible for putting it in the blood stream? Why?
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14) What two molecules reacted?
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15) What do we call this reaction?
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16) What were the products of that reaction?
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17) Which product will the arm cell use, and for what?
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18) Which product is a “waste” product?
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19) What will happen to the carbon dioxide molecule once it gets back to the alveoli?
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20) How does it get there?
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21) How does diffusion describe what happens to the carbon dioxide molecule at the alveoli?
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22) Where does the carbon dioxide molecule go after the alveoli?
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23) What organ powers this?
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24) Summarize the processes represented in the activity.
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25) How do the respiratory, circulatory, and digestive systems work together to maintain
homeostasis in this scenario? (In other words, how does cellular respiration help maintain
homeostasis? How do the respiratory, circulatory, and digestive systems work together to
achieve this?
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