Exam 15: The Digestive System

Which layer of the GI tract is responsible for peristalsis?

Some enzymes are free-floating in the fluid of the bolus and chyme,while others are located on the surface of the cells of the small intestine.

In the diagram,the arrow is pointing at the:

With what digestive organ are these structures associated?

Which stage of swallowing is shown here?

A cavity is damage to which region of the tooth?

Chewing is an example of:

Which macromolecules are digested in the stomach?

The function of Peyers patches is the:

All digestive enzymes work best at pH 7.

What is the function of structure C?

The ileum is part of which structure?

In the illustration,which organ secretes digestive enzymes and produces hormones?

Mesenteries are folds in the abdominal lining that help to secure the digestive organs.

The portion of the large intestine just before the rectum is the:

What is the substrate for trypsin?

E.coli is not normally found in the digestive system; it is only found when a person has acquired food poisoning from eating tainted food.

If we don't eat,we can break down glycogen and convert fats and proteins into glucose to maintain blood sugar levels.

Which nutrient requires the least energy expenditure to arrive in the blood stream?

The intestinal phase of gastric digestion begins when chyme starts to leave the stomach through the pyloric sphincter.