Digestive & Excretory Systems

The function of the digestive system is to......

• To remove waste products from the body 
• To digest, break down food and absorb nutrients.

The main organs in the digestive system are

• mouth, esophagus, stomach, small intestine and large intestine
• kidneys and bladder
• lungs
• stomach and intestines

Physical change in digestion occurs in the

• stomach and intestines
• intestines
• mouth and esophagus
• mouth only

Chemical change in digest occurs when

• food is moving from one organ to another
• you drink fruit juices
• only bacteria is present in the intestines
• saliva, acids and enzymes are present

Chemical change in digestion occurs in the

• esophagus
• stomach and intestines
• mastication stage

95% of nutrients are absorbed in the 

• esophagus
• stomach
• small intestine
• large intestine

Water and salt is absorbed in the 

• esophagus
• stomach
• small intestine
• large intestine

The function of the excretory system is to......

• To remove waste products from the body 
• To digest, break down food and absorb nutrients.

The major organs in the excretory system are

• kidneys, large intestine, liver, bladder and lungs
• stomach, small intestine and large intestine
• liver and pancreas
• gallbladder and spleen

Liquid waste is stored in the ________________ and solid waste is stored in the ____________________.

• kidneys and liver
• colon and bladder
• bladder and colon
• esophagus and intestines