Exam 22: Nutrition and Digestion

A digestive tube is best defined as ________.

How does a plate of red beans and rice compare to a steak, nutritionally?

Which process is an example of mechanical digestion?

Anorexia and bulimia occur ________.

The epithelial cells lining the intestine have surface projections that increase the area for absorption. These projections are called ________.

Scenario There are many diseases of the digestive system. Sjögren's syndrome is an autoimmune disease that destroys tear ducts and salivary glands. In megaesophagus, peristalsis fails to occur properly and the esophagus is enlarged. In achlorhydria (also called "hypochlorhydria")production of gastric acid is absent or low. When a person has diverticulitis, feces are trapped in small pouches of the large intestine, and cause infection. Infected portions of the large intestine can swell and block the large intestine. In exocrine pancreatic insufficiency, there is a progressive loss of pancreatic cells that make digestive enzymes. In gallstone cholestasis, bile cannot flow from the liver to the duodenum. -A protein deficiency in the blood could indicate ________.

The data below are from an experiment that tested the effect of leptin on mice with a normal obese gene and mice with a defective obese gene. Assume that the experiment began with a group of mutant mice that were all the same mass, and a group of normal mice of the same mass. -What role does the saline injection have in this experiment?