Exam 40: Digestion and Absorption

Some drugs cannot be taken orally even if they are well absorbed by the small intestine because they are completely broken down by the liver. Explain why these drugs would never reach the general circulation.

Match each of the digestive juices and enzymes with its corresponding description. -Enzyme that chemically digests fat

Although the cotransport of sodium and glucose is a passive process, it would not be possible without the active transport of sodium out of the cell.

After the absorption of a large meal, high levels of glucose and amino acids would be found in the:

Structurally, enzymes are:

Vitamins A, D, E, and K depend on bile salts for their absorption.

Gastric juice contains all of the following substances except:

Retropulsion forces the chime in the stomach to move backwards.

Some of the enzymes in pancreatic juice are inactive.

The amount of fat being absorbed by the body can be determined by taking a blood sample from the hepatic portal system.

Although both peristalsis and segmentation require movement of the alimentary canal, only peristalsis moves food through the alimentary canal.

Drinking large amounts of water works best as a means of replacing fluids quickly during exercise.

The names of enzymes are easy to identify because they all end in "ase."

Amylases are found in saliva and in pancreatic juice.

Secretions of the digestive glands are mostly water.

Oral rehydration therapy can be used to replace fluids lost by way of diarrhea.

Match each structure with its function, description, or the enzyme it produces. -Organ in which bile is concentrated and stored

Which of the following best describes the enzymatic role in carbohydrate digestion?

The substances absorbed into the lymph capillaries are:

During deglutition, the mouth is closed off by the soft palate and the uvula.