Metabolism Review

Stella's respiratory system is not working well. Why is this a problem for her ability to exercise?

• Her respiratory system will not be able to break down molecules from air into oxygen.

• Her cells will not work well when they have low levels of oxygen.

• Her digestive system will have to work twice as hard to get the same amount of energy from glucose molecules.

• Her cells will not work because molecules from air will be too large for her body to use.

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Jaxson was tested to find out what molecules was inside his cells. His cells contained normal levels of oxygen, low levels of amino acid molecules, and low levels of glucose. Will Jaxson be able to exercise normally?

• Yes, as long as his cells have enough oxygen, he can exercise.

• No, his cells need glucose to react with oxygen to release enough energy to exercise.

• No, his cells need more amino acid molecules.

• No, his cells need glucose to react with amino acids.

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What molecules need to be absorbed by cells in order for us to have energy?

• Oxygen, protein and starch

• Oxygen, amino acid and starch

• Oxygen, amino acid and protein

• Oxygen, amino acid and glucose

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An athlete wants to hit their peak performance today. What should they do?

• Take deep breaths and eat foods with plenty of starch and glucose for energy

• Meditate to slow down their heart rate so oxygen and glucose stay in their blood

• Don't eat for several hours before exercising so they feel less heavy and slow

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The space exploration program has hired you for advice on how to keep astronauts healthy in the space shuttle. How can the program's doctors make sure the astronauts’ bodies work well enough to exercise in space?

• The doctors could make sure that the astronauts’ bodies can make enough energy by getting enough sleep.

• The doctors could make sure the astronauts’ stomachs are getting the molecules they need from food and air.

• The doctors could make sure the astronauts’ cells are getting the molecules they need from food and air.

• The doctors could make sure the astronauts’ cells are getting different types of molecules from food.

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5. The test report above shows the level of molecules in different parts of the patient’s body. How would you expect this patient to do on an exercise test?

• Well; his body is working properly.

• Poorly; his digestive system is not combining glucose molecules together for the cells to use.

• Poorly; his digestive system is not breaking down molecules from food into glucose.

• Poorly; his respiratory system is not breaking down oxygen molecules into glucose.

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