Review 2 on Body systems

Examples of chemical changes in Digestive System

• Reaction of saliva, stomach acids, bile and pancreatic juices with food

• chewing food

• tear food with teeth

• swallowing food

Which step in the digestive system represents a chemical change in food?

• Substances in the mouth and stomach breaking down fats and proteins

• Movement of food down the esophgus

• storing of swallowed food in stomach

• tearing food with tongue

Which is a physical change that occurs during digestion

• Bile break down food

• Chewing food to break down large pieces to small pieces

• Saliva breaking down food in mouth

• Pepsin breaking down proteins in stomach

Example of physical change in digestion

• Teeth grind and tear food into small bits

• Digestive enzymes breaking down food

• Saliva in mouth creating a new substance

• Bile breaks down fats

Which body system is responsible for supplying the body with oxygen and removing carbon dioxide?

• nervous

• digestive

• muscular

• respiratory

Which two body systems work together to remove waster from the blood

• Circulatory and excretory

• Skeletal and digestion

• Circulatory and muscular

• Endocrine and nervous

The main function of the excretory system is to

• produce enzymes to help break down food

• collect and remove waste products from the body

• prevent diseases

• carry oxygen and nutrients to the body's cells

The main function of the muscular system is

• support of the body

• movement of the body

• break down food

• removal of waste

The largest human body organ that regulates temperature and serves as a barrier against microorganisms is

• Integumentary System

• Nervous

• Digestive system

• Circulatory

Which organ system is responsible for transporting oxygen throughout the organism?

• Endocrine

• Respiratory

• Excretory

• Circulatory