Metabolism Quiz

An ocean scientist plans to spend several days underwater in a submarine. Doctors on land will monitor her body to make sure she is healthy during her trip. What is one way doctors will be able to tell whether her body is healthy enough to do all her tasks while she is in the submarine?

• The doctors could see if she is getting plenty of sleep so her body can make enough energy.

• The doctors could see if her cells are getting the molecules they need from food and air.

• The doctors could see if her cells are getting several different types of food molecules.

• The doctors could see if her lung cells have molecules from air, and her stomach cells have molecules from food.

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2. A patient has been eating healthy foods, but his digestive system is not doing what it usually does. Can this patient still exercise normally?

• Yes, as long as he can still breathe, his cells will have all the molecules they need to release energy.

• No, molecules from food are not getting broken down small enough to get inside his cells.

• No, molecules from food are not combining together to be large enough for his cells to use.

• No, his digestive system is not breaking down oxygen into molecules small enough to get inside his cells.

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The body's use of molecules for energy and growth is called ___________________________.

• glucose

• oxygen

• metabolism

• cellular respiration

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If a person is breathing normally, which of the following could prevent him from being able to exercise normally?

• not eating enough food, because cells need molecules from both food and air to work

• nothing, because he would be able to exercise normally as long as his cells are getting molecules from the air

• not getting enough sleep, because the body only makes energy for exercise while asleep

• not getting enough sunlight, because cells need sunlight to function

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A student thinks that the human body only works properly when cells are getting molecules from food and molecules from air. Is the student correct?

• No, the body only works when the lungs get molecules from air, and the stomach gets molecules from food.

• No, the body works as long as cells are making all the molecules they need.

• No, the body only works when cells are getting molecules from different types of food.

• Yes, the body only works when cells get molecules from food and molecules from air.

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The body system that takes in food and breaks it down:

• respiratory system

• digestive system

• circulatory system

• amino acids

Select all the molecules necessary for cellular growth and repair:

• amino acids

• oxygen

• carbon dioxide

• glucose

• bacteria

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The chemical reaction between oxygen and glucose that releases energy into cells is called:

• amino acids

• metabolism

• cellular respiration

• oxygen

True or False: The circulatory, digestive and respiratory systems all work alone and do not interact with each other.

• True

• False

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Jamal ate a meal of rice before seeing his doctor. Rice is made of mostly starch molecules. Jamal has been feeling tired a lot, so his doctor gave him a test that found that Jamal’s cells contained normal levels of oxygen and low levels of glucose. Does this explain why Jamal has been feeling tired?

• Yes, Jamal’s respiratory system is working, but his digestive system is not breaking down starch molecules into glucose for his cells.

• No, something else must be wrong because is cells have all the molecules they need.

• Yes, Jamal's respiratory system is working but his digestive system is not turning oxygen into glucose.

• Yes, Jamal's digestive system is working but his respiratory system has too much oxygen so his body stopped making energy.

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