Digestive System

Which of these is NOT a function of the digestive system?

• breaks down food

• absorbs nutrients

• eliminates waste

• takes oxygen to body cells

Answer explanation

The digestive system does not take oxygen to body cells. It breaks down food, absorbs nutrients, and eliminates waste.

The process of breaking down food into nutrient rich molecules.

• absorption

• digestion

• peristalsis

• villi

Answer explanation

Digestion is the process of breaking down food into nutrient-rich molecules.

The process by which nutrient molecules pass through the wall of your digestive system into your blood.

• absorption

• digestion

• peristalsis

• villi

Answer explanation

Absorption is the process by which nutrient molecules pass through the digestive system wall into the blood. It is the correct choice.

moves food from the mouth to the stomach

• esophagus

• small intestine

• large intestine

• pancreas

Answer explanation

The esophagus is the tube that moves food from the mouth to the stomach.

absorbs nutrients

• stomach

• small intestine

• large intestine

• liver

Answer explanation

The small intestine is responsible for absorbing nutrients from food. It is the correct choice because it performs this function efficiently.

Tags

NGSS.MS-LS1-7

absorbs water

• small intestine

• stomach

• villi

• large intestine

Answer explanation

The correct choice, the large intestine, absorbs water.

produces enzymes that break down food

• liver

• pancreas

• gall bladder

• stomach

Answer explanation

The pancreas produces enzymes that break down food.

Tags

NGSS.MS-LS1-7

The pancreas, liver, and gallbladder are known as...

• accessory organs

• the digestive tract

• acid makers

• digestion helpers

Answer explanation

The pancreas, liver, and gallbladder are known as accessory organs because they assist in the process of digestion.

waves of muscular contractions that move food through the digestive tract.

• digestion

• absorption

• peristalsis

• villi

Answer explanation

Peristalsis is the waves of muscular contractions that move food through the digestive tract.

finger-like projections in the small intestine that absorb nutrients

• digestion

• absorption

• peristalsis

• villi

Answer explanation

Villi are finger-like projections in the small intestine that absorb nutrients.

Tags

NGSS.MS-LS1-7