Digestion Review 2017

Where does the digestive process begin?

• large intestine
• small intestine
• mouth
• stomach

Mechanical digestion results in which kind of changes to food?

• chemical change
• physical change

The stomach is wrapped in ___ tissue to enable it to churn food during mechanical digestion.

• cardiac
• bone
• fatty
• muscle

Your teeth are a part of the process of ___ digestion

• mechanical
• chemical

The Digestive System breaks down food, absorbs nutrient molecules into the blood, and ___

• maintains a steady heart rate
• eliminates wastes from the body
• carries oxygen to the cells
• produces hormones to regulate body systems

A physical change can be

• a change in shape
• a change in size
• a change in state of matter
• all of the above

Production of a gas (bubbles) is evidence of 

• a chemical change
• a physical change

Tags

NGSS.MS-PS1-2

When starches (large carbohydrate molecules) in a cracker are digested, they  are changed into

• proteins
• fatty acids
• compounds
• sugars

Tags

NGSS.MS-LS1-7

Physical changes in digestion occur in the

• mouth only
• stomach only
• mouth, stomach, and large intestine
• mouth, stomach, and small intestine

Which organ breaks down food chemically and then absorbs the nutrient molecules?

• liver
• small intestine
• stomach
• large intestine