How Body Systems Work Together to Deliver Essential Molecules

What is the main job of the respiratory system?

• To deliver nutrients to cells

• To bring oxygen into the body

• To transport waste products

• To produce glucose

What is the circulatory system compared to in the text?

• A power plant

• A highway network

• A storage facility

• A communication system

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What does the circulatory system transport besides oxygen?

• Carbon dioxide and nitrogen

• Glucose and amino acids

• Vitamins and minerals

• Proteins and fats

What happens to carbon dioxide in the circulatory system?

• It is used to produce energy

• It is stored in the cells

• It is transported back to the lungs for exhalation

• It is converted into oxygen

What role do red blood cells play in the body?

• They produce energy

• They act like tiny delivery trucks

• They store nutrients

• They create waste products

What happens if cells do not receive essential molecules?

• They become more efficient

• They cannot create energy or repair themselves

• They produce more waste

• They grow faster

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What is the waste product produced by cells that is transported by the circulatory system?

• Oxygen

• Glucose

• Carbon dioxide

• Amino acids

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How do body systems work together to deliver essential molecules?

• By storing them in the liver

• By using the respiratory, circulatory, and digestive systems

• By converting them into waste

• By producing them in the heart

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What is the main role of the digestive system?

• To circulate blood throughout the body

• To break down food into smaller molecules

• To deliver oxygen to cells

• To regulate body temperature

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What does the circulatory system do with glucose and amino acids?

• Stores them in the liver

• Converts them into fat

• Delivers them to cells throughout the body

• Breaks them down further

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