Metabolic Reactions-Schatz

Front

What is a physical change in the body?

Back

Chewing food is an example of a physical change, as it alters the appearance of food but does not change its chemical composition.

Front

What is the function of the small intestine?

Back

The small intestine is a digestive organ where most chemical digestion and absorption of food takes place.

Front

What are villi?

Back

Villi are tiny finger-shaped structures that cover the inner surface of the small intestine, providing a large surface area for nutrient absorption.

Front

What is a chemical change in the body?

Back

A chemical change occurs when saliva breaks down starch into simple sugar molecules.

Tags

NGSS.MS-LS1-7

Front

Why do young children need more fat in their diet?

Back

Young children need more fat in their diet because they require it to grow and develop.

Front

What is digestion?

Back

Digestion is the process by which food is broken down into smaller components that can be absorbed by the body.

Front

What role do enzymes play in digestion?

Back

Enzymes are proteins that speed up chemical reactions in the body, including the breakdown of food into nutrients.

Front

What is the difference between physical and chemical changes?

Back

Physical changes alter the form or appearance of a substance without changing its chemical composition, while chemical changes result in the formation of new substances.

Tags

NGSS.MS-PS1-4

Front

What nutrients are absorbed in the small intestine?

Back

The small intestine absorbs nutrients such as fatty acids, amino acids, simple sugars, and vitamins.

Front

How do villi aid in nutrient absorption?

Back

Villi increase the surface area of the small intestine, allowing for more efficient absorption of nutrients.