Digestive System Review

Which organ does food enter after being digested in the stomach?

• Liver
• Pancreas
• Large Intestine
• Small Intestine

Which of the following is an enzyme that breaks down polypeptides?

• Pepsin
• Amylase
• Lipase
• Sucrase

The function of enzymes in living organisms is to act as a biological catalysts that speed up chemical reactions.

• True
• False

What is the purpose of salivary amylase?

• break down polysaccharides in the mouth, allowing us to taste carbohydrate-rich foods
• break down polypeptides in the mouth, allowing us to taste protein-rich foods
• break down disaccharides in the small intestines
• none of these

What is the primary purpose of mechanical digestion?

• increases surface area for chemical digestion
• to move food through the large intestine more easily
• allow for easier absorption of monomers through the small intestine
• aid in protein synthesis

Which secondary organ produces enzymes that can digest each type of macromolecule?

• Liver
• Small Intestine
• Stomach
• Pancreas

Bile is created by the ____ and stored in the ____ .

• gallbladder; liver
• liver; gallbladder
• stomach; liver
• liver; small intestine

Enzymes are crucial in digestion because they ____ .

• reduce the energy needed for a reaction
• reduce the amount of time needed for a reaction
• are reusable after the reaction occurs
• all of these options are true

Reabsorption of water is one of the large intestine's most crucial functions.

• True
• False

Without saliva, polysaccharide digestion will probably decrease.

• True
• False