Metabolism Review Amplify

Where do we get all of our molecules from? Select all that apply.

• Food

• Air

• Dirt

• Vitamins

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Which molecules are NOT found in a healthy cell?

• Glucose

• Starch

• Protein

• Amino Acids

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What two molecules are needed to release energy in a cell? (hint: look through your key concepts from Chapter 1!)

• Protein

• Starch

• Oxygen

• Glucose

An athlete thinks that she can exercise as long as she eats different types of food because her body just needs different types of food molecules to work properly. Is the athlete correct?

• Yes, her cells only work when they have molecules from different types of food. 
• No, her muscles do not need molecules from food because all cells make all the molecules they need. 
• No, all cells need molecules from food and molecules from air to work properly.
• No, only her stomach cells need food molecules to work properly. 

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Marisol has been chewing and swallowing her food, but her digestive system is not doing what it usually does. Why is this a problem for her ability to exercise?

• Her cells will not work well because molecules from her food are not being broken down small enough to get to her cells.
• Her body will run out of energy because molecules from the air are not being combined into larger molecules for the cells.
• Her respiratory system will have to work twice as hard to break down molecules from food.
• Her cells will not work well because the molecules from food will be too small for cells to use.

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Doctors tested a patient to find out what molecules were in her cells. Her cells contained normal levels of amino acids, normal levels of oxygen molecules, and low levels of glucose molecules. Will this patient be able to exercise normally?

• Yes, her cells just need to combine amino acids to release energy.
• No, her cells need to combine glucose into starch molecules to release energy.
• No, her cells need glucose to react with oxygen to release energy. 
• Yes, her cells just need oxygen to release energy.

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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 her cells are getting several different types of food molecules.
• The doctors could see if she is getting plenty of sleep so her body can make enough energy.
• The doctors could see if her lung cells have molecules from air, and her stomach cells have molecules from food.
• The doctors could see if her cells are getting the molecules they need from food and air.

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Which of the patients will have trouble with exercise, based on these lab results? 

• Kim only
• Mistry only
• Both Kim and Mistry
• Neither Kim or Mistry

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, his digestive system is not breaking down oxygen into molecules 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, molecules from food are not getting broken down small enough to get inside his cells.

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If a person is breathing normally, which of the following could prevent him from using his body to exercise normally?

• not getting enough sunlight, because cells need sunlight to function
• not getting enough sleep, because the body only makes energy for exercise while asleep
• 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

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