Human Digestive System

What prevents food from entering the windpipe?

• Peristalsis

• Pharynx

• Epiglottis

• Bile

What is digestion

• the breakdown of food into smaller molecules

• the breakdown of food into larger molecules

• taking nutrients from food

• all of the above

How long does food stay in the small intestine?

• 1 day

• 4-8 hours

• 2 hours

• 8-10 hours

What transfers nutrients to blood?

• lipase

• trypsin

• Villi

• lipids

The ____ is 25 cm long

• Esophagus

• large intestine

• pancreas

• gallbladder

The most important organ is...

• Stomach

• Liver

• Large Intestine

• Small Intestine

Tags

NGSS.MS-LS1-7

What breaks down Proteins

• Pepsin

• liver

• villi

• pharynx

What is covered by a thick layer of mucus

• Small Intestine

• Stomach

• Esophagus

• Throat

___ is 7 meters long

• Esophagus

• Liver

• Large Intestine

• Small Intestine

Gravity affects the digestive system.

• True

• False