NGSS.MS-LS1-7

In the cells of the human body, oxygen molecules are used directly in a process that

•  releases energy
•  digests fat
• synthesizes carbohydrate molecules
•  alters the genetic traits of the cell

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NGSS.MS-LS1-7

Uses chemical to break down food and worn out cell parts.

• Lysosomes
• Golgi Bodies
• Vacuoles
• Cytoplasm

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NGSS.MS-LS1-7

Where does cellular respiration occur?

• Nucleus
• Mitochondria
• Vacuole
• Chloroplast

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NGSS.MS-LS1-7

What are tiny organelles that convert glucose into ATP?

• Ribosomes
• Vesicles
• Cytoskeleton
• Mitochondria

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NGSS.MS-LS1-7

Stomach acid and saliva are liquids that are found in the digestive system. Which of the following best describes the function of these liquids?

• A. increasing oxygen levels

• B. creating larger molecules

• C. chemical digestion

• D. mechanical digestion

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NGSS.MS-LS1-7

Digestion, the process of the body breaking down food for nutrients, is a --- property.

• Chemcial

• Physical

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NGSS.MS-LS1-7

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

• A Yes, his body is working properly enough to exercise.

• B No, his digestive system is not breaking down food molecules; his cells need starch molecules to react with glucose, which releases energy.

• C No, his body systems are working, but he needs to eat different food; only proteins can react with glucose to release energy.

• D No, his respiratory system is not working; his cells need oxygen to react with glucose, which releases energy.

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NGSS.MS-LS1-7

most digestion occurs

• mouth

• stomach

• small intestine

• esophagus

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NGSS.MS-LS1-7

this part of the digestive system absorbs food for the cells to use.

• small intestines

• mouth

• large intestines

• stomach

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NGSS.MS-LS1-7

How does the digestive system work with all other systems?

• The digestive system transports blood to all the other systems

• The digestive system puts oxygen into the body

• The digestive system gives the body energy and nutrients

• The digestive system allows the body to move

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NGSS.MS-LS1-7