Exam 40: Digestion and Absorption

Match each primary mechanism of the digestive system with its corresponding definition. -A group of processes that breaks complex nutrients into simpler ones, thus facilitating their absorption (includes both mechanical and chemical processes)

The drug omeprazole (Prilosec) works by stimulating the H-K pumps, thereby reducing the amount of acid in the stomach.

The major final product that results from the digestion of carbohydrates is:

Segmentation can be described simply as a mixing movement.

Glucose moves from the GI tract into the circulatory system by the process of:

Chylomicrons are formed to facilitate the transport of:

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. -Stimulates secretion of gastric juice rich in pepsin and hydrochloric acid

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?

The first phase of deglutition or swallowing occurs in the:

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

Enterokinase converts trypsin into trypsinogen.

Match each digestive hormone with its action. -Stimulates ejection of bile from the gallbladder and secretion of pancreatic juice high in enzymes; opposes the action of gastrin, reducing the pH of gastric juice

Lactose and maltose are examples of disaccharides.

Sucrase hydrolyzes sucrose into glucose and fructose.

Carbohydrates that are used for food are made up of one or more saccharide groups.

Match each primary mechanism of the digestive system with its corresponding definition. -Release of digestive juices; release of endocrine hormones that regulate digestion or metabolism of nutrients

Explain the differences between peristalsis and segmentation.

What substances are found in pancreatic juice? How are the inactive substances in pancreatic juice activated?

Most enzymes in the body are intracellular.