UNIT 3 TEST How can food provide my body with energy?

What is the primary purpose of digestion?

• To make food molecules smaller so they can enter cells and provide energy

• To store food molecules for later use

• To convert food molecules into fat

• To eliminate waste from the body

Tags

NGSS.MS-LS1-7

Which of the following is a chemical reaction that breaks down food molecules into subunits?

• A. Photosynthesis

• B. Cellular respiration

• C. Digestion

• D. Fermentation

Tags

NGSS.MS-LS1-7

What do plants need to grow?

• Soil and water

• Light and water

• Soil and light

• Water and carbon dioxide

Tags

NGSS.5-LS1-1

Which food molecule releases the most energy when burned?

• A. Carbohydrates

• B. Proteins

Tags

NGSS.HS-LS1-7

NGSS.HS-PS1-4

What is the role of enzymes in the breakdown of food?

• To build up large food molecules

• To chemically digest food molecules into smaller subunits

• To store food molecules for later use

• To convert food molecules into energy

Tags

NGSS.MS-LS1-7

What happens to fat molecules when people lose weight?

• They are converted into muscle

• They are broken down and used for energy

• They are stored in the liver

• They are excreted from the body

Tags

NGSS.MS-LS1-7

What is the main source of energy for the body?

• Water

• Food

• Oxygen

• Sunlight

Tags

NGSS.MS-LS1-7

Which of the following is a model used to understand chemical reactions in cells?

• A. Burning a tortilla chip

• B. Freezing water

• C. Melting ice

• D. Boiling water

Tags

NGSS.MS-PS1-2

NGSS.MS-PS1-5

What do enzymes in the mouth do to carbohydrates?

• A. Build them up into larger molecules

• B. Chemically digest them into smaller subunits

• C. Store them for later use

• D. Convert them into fat

What is the purpose of cellular respiration?

• To store energy in food molecules

• To convert food molecules into energy

• To build up large food molecules

• To eliminate waste from the body

Tags

NGSS.MS-LS1-7