Metabolism Chapter 3

Which molecule is NOT needed for cells to release energy?

• Oxygen

• Amino acid

• Glucose

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Digestive enzymes break starch molecules into:

• Amino acids

• Oxygen

• Glucose

• Carbon dioxide

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What are the waste products (2) of cellular respiration?

• Oxygen

• Carbon dioxide

• Glucose

• Water

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What molecule do cells primarily use to grow and repair themselves?

• Oxygen

• Amino acids

• Water

• Concrete

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Which cell carries oxygen thoughout the body?

• Barge cell

• Transport cell

• Red blood cell

• White blood cell

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When combined together, amino acids form:

• Protein

• Carbohydrate

• Fat

• Water

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

• No, her muscles do not need molecules from food, because all cells make all the molecules they need.

• No, only her stomach cells need food molecules to work properly.

• Yes, her cells only work when they have molecules from different types of food.

• No, all cells need molecules from both food and molecules from air to work properly.

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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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A patient has been eating healthy foods, but his circulatory system is not working as well as it usually does. Can this patient still exercise normally?

• Yes, his body can get everything it needs for energy from molecules in food through the digestive system.

• Yes, his respiratory system is getting enough oxygen to combine together to release energy.

• No, his cells do not have enough oxygen and glucose to react and release energy.

• No, her cells do not have enough oxygen to react with proteins to release energy.

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Elisa has diabetes, which keeps glucose from getting into the cells. How does this affect her body?

• It allows her to exercise more, because it keeps the glucose in the circulatory system to make energy.

• It makes her sad, because her cells won't be able to grow into bigger molecules.

• It makes her tired, because her cells need glucose to build new proteins that create energy

• It makes her tired, because her cells need glucose to react with oxygen to create energy.

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