Digestive System - Class review

Front

What is the main function of the small intestine?

Back

The small intestine is responsible for chemical digestion and nutrient absorption into the blood.

Front

What is mechanical digestion?

Back

Mechanical digestion is the physical breakdown of food into smaller pieces, such as by the teeth and tongue.

Front

What happens in the stomach during digestion?

Back

In the stomach, food is stored, churned, and mixed with digestive acids and enzymes, turning it into a substance called chyme.

Tags

NGSS.MS-LS1-7

Front

What occurs in the small intestine after food passes through the stomach?

Back

Nutrients are absorbed by blood vessels into the blood.

Front

What is the correct sequence of the digestive pathway?

Back

mouth, esophagus, stomach, small intestine, large intestine.

Front

What are villi and their function in the small intestine?

Back

Villi are small, finger-like projections in the small intestine that increase surface area for nutrient absorption into the blood.

Front

What is the role of the large intestine in digestion?

Back

The large intestine absorbs water and electrolytes from indigestible food matter and compacts waste for elimination.

Front

What is chyme?

Back

Chyme is the semi-liquid mass of partially digested food that moves from the stomach to the small intestine.

Tags

NGSS.MS-LS1-7

Front

How do enzymes aid in digestion?

Back

Enzymes are proteins that speed up chemical reactions, helping to break down food into smaller molecules for absorption.

Front

What is the difference between chemical and mechanical digestion?

Back

Chemical digestion involves breaking down food with enzymes and acids, while mechanical digestion involves physically breaking food into smaller pieces.