digestive system

Which of the following correctly describes the purpose of digestion?

• To break down complex food molecules into simple soluble molecules

• To make complex food molecules from simple soluble molecules

• To make use of simple soluble food molecules

• To remove complex food molecules from the body

Large food molecules need to be broken down to be small enough to pass through cell membranes.

• True

• False

Which statement is NOT true about proteins?

• Protein digestion begins in the mouth.

• Proteins are used for cell growth and repair.

• Proteins are broken down to form amino acids.

• Some complex proteins function as enzymes in the body.

Why is the oesophagus muscular?

• To break the food into even smaller pieces

• To produce enzymes to digest food

• To push food from the mouth into the stomach

• To move the food back and forth in two directions

What is the name of the organ that is the size of a tennis ball but can expand to the size of a football?

• pancreas

• lung

• intestines

• stomach

Approximately 21 feet in length, this organ takes the broken down food and helps move it into the blood stream by way of villi. What is the organ?

• large intestine

• small intestine

• stomach

• liver

What is the name of the organ that stores the salts that are needed to break down fats into fatty acids?

• gall bladder

• liver

• pancreas

• appendix

You cannot live completely without this organ because it produces bile, stores glycogen and helps to detox the body. What is it?

• gall bladder

• liver

• pancreas

• ileum

This organ soaks up water, salts and moves undigested fiber or wastes out of the body. What is it?

• small intestine

• pancreas

• stomach

• large intestine

A common term that is used for the small and large intestines is bowels.

• TRUE

• FALSE