Exam 29: B: Physiology of the Digestive System

Explain the difference between transcellular absorption and paracellular absorption.What can be absorbed by means of paracellular absorption?

Rotavirus can cause what life-threatening condition in infants?

Match each of the digestive juices and enzymes with its corresponding description. -enzyme that works on cane sugars

Digestion uses the following methods in which order to accomplish its function?

The hormone that inhibits gastric muscle,slowing passage of food into the duodenum,is called:

Donna has Crohn disease,which results in inflammation and ulceration of the small intestine.Her physician recommended surgery to help in the management of this autoimmune disease.Could her entire small intestine be removed? Why or why not?

Match each of the digestive juices and enzymes with its corresponding description. -enzyme from lining of small intestine whose end products are amino acids

Match each digestive hormone with its action. -inhibits gastric secretion; stimulates secretion of pancreatic juice low in enzymes and high in alkalinity; stimulates ejection of bile by the gallbladder

The enzyme pepsin begins the digestion of:

Match each structure with its function, description, or the enzyme it produces. -gland that makes and secretes bile

The enzyme amylase is produced by the:

Which of the following is a disaccharide?

Which of the following is not a stage in deglutition?

The prefix "amyl" comes from the Latin word for "starch." How does that explain the name for an enzyme in carbohydrate digestion?

Explain why trypsin and pepsin need to be made in an inactive form.

The first phase of deglutition or swallowing occurs in the:

Why can it be said that absorption is the reason for digestion?

The optimal pH for the functioning of pepsin is 3; the optimal pH for the functioning of trypsin is 7.Explain why this difference would be expected.

Explain the physiological basis for diarrhea and constipation.

The end product of lipase digestion is: