Digestion

What's digestion?

• It's the mechanical breakdown of food for energy.

• It's the breakdown of food into small particles and molecules.

• It's the breakdown of particles into molecules.

Tags

NGSS.MS-LS2-3

Why is food digested?

• For a body to obtain nutrients.

• For a body to obtain calories.

• For a body to do activities.

Tags

NGSS.MS-LS1-7

The types of digestion are...

• Chewing and swallowing for digestion.

• Salivation and release of food after digestion.

• Mechanical and chemical digestion.

The mouth is the first place where digestion of food begins because...

• Food if eaten and swallowed and saliva breaks it down.

• Mechanical digestion starts by chewing and chemical digestion starts with salivary glands.

• It's the first part of the body where food is processed. 

What's the name of the tube that connects the mouth to the stomach?

• The throat.

• The neck

• The esophagus.

What's the name of the muscle contractions that move food from the mouth to the stomach?

• Relaxation.

• Peristalsis.

• Contraction.

What's one function of the stomach for digestion?

• It contracts and relaxes to move food. 

• It gets swells with food. 

• It helps with chemical digestion. 

What's one function of the small intestine?

• It absorbs liquids and nutrients for the body.

• It breaks down solid waste. 

• It processes water.