Metabolism Chapter 2 Review

Which body system transports molecules throughout the body?

• Circulatory

• Respiratory

• Digestive

Which body system breaks down larger food molecules into smaller molecules?

• Circulatory

• Respiratory

• Digestive

• Cell

Which body system takes oxygen into the body?

• Circulatory

• Respiratory

• Digestive

What molecules do cells need from food and air?

• Protein, starch and carbon dioxide

• Starch, amino acids and oxygen

• Glucose, amino acids and oxygen

• Protein, glucose and oxygen

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Where does your body get glucose from?

• Starch breaks down to glucose

• Your body makes glucose.

• Protein breaks down to glucose

If someone has low energy what could cause this?

• Their cells don’t have enough glucose or oxygen.

• Their cells don’t have enough carbon dioxide.

• Their cells have too much startch in them.

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Your respiratory system (lungs) brings this molecule(s) into the body.

• Glucose

• Oxygen

• Glucose and oxygen

• Proteins

Your digestive system breaks down starches into this smaller molecule.

• Glucose

• Oxygen

• Glucose and oxygen

• Amino Acid

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Your circulatory system transports these molecules around the body.

• Moves oxygen into your body.

• Absorbs and transports glucose from food.

• Transport oxygen, amino acids and glucose throughout the body.

• Breaks down starch and protein into molecules small enough to pass through the villi.

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Patrick eats lots of candy which has a high glucose (sugar) content. How will this affect his digestive system?

• His digestive system won’t have to work as hard because glucose doesn’t need to be broken down and can be absorbed easily.

• His digestive system will have to combine the glucose into starch so that his body can absorb it.

• His digestive system will have to combine proteins to make amino acids.