Digestive Systems
This is a process of breaking food down so the body can use it.
What is Digestion?
This nutrient is the body's main source of energy.
What are carbohydrates?
A change that alters shape or size but does not create a new substance.
What is a physical change?
These are special proteins that speed up chemical reactions in the body.
What are enzymes?
This organ begins digestion by chewing food and mixing it with saliva.
What is the mouth?
What is the esophagus?
This nutrient helps build and repair muscles.
What is protein?
Burning wood is an example of this type of change.
What is a chemical change?
This enzyme in saliva begins breaking down starches (carbohydrates) in the mouth.
What is amylase?
The body needs these substances from food to grow and stay healthy.
What are nutrients?
Most nutrients are absorbed in this organ.
What is the small intestine?
These nutrients help regulate body functions and keep the body healthy.
What are vitamins?
Melting ice into water is this type of change.
What is a physical change?
This enzyme helps break down fats into smaller molecules the body can absorb.
What is lipase?
Name the six main nutrients.
What are carbohydrates, proteins, fats, vitamins, minerals, water?
This organ uses acid and muscles to break down food.
What is the stomach?
This nutrient helps strengthen bones and teeth.
What are minerals?
Physical changes usually can or cannot be reversed?
What is can be reversed?
This group of enzymes breaks down proteins into smaller pieces called amino acids.
What is protease?
Breaking food into smaller pieces without changing the substance is called this.
What is physical digestion?
This organ absorbs water and forms waste.
What is the large intestine?
These three nutrients provide energy for the body.
What are carbohydrates, fats, and proteins?
Digesting food in the stomach is this type of change.
What is a chemical change?
This specific enzyme found in the small intestine helps break down proteins during digestion.
What is trypsin?
Breaking food into new substances using enzymes is called this.
What is chemical digestion?