Exam 47: Digestive Systems and Animal Nutrition

The presence of hydrochloric acid in the stomach serves to ____.

What is the purpose of the watery fluid secreted by the serosa of the human digestive tract?

Heartburn is caused by the ____.

Which enzyme is paired with the substance it digests?

The ____ digestive structures in humans secrete amylase.

The two proteases in the small intestine that complete protein digestion are ____.

The____layer of the digestive tract in mammals is in direct contact with the lumen.

The digestion of lipids in humans begins in the ____.

How are the gastric glands in the stomach protected from digestion by the enzyme they produce?

A deficiency in thiamin causes the nervous system disorder ____.

How does undernutrition impact the human body?

Cholesterol can be scavenged by ____.

Vitamins ____ are produced within the human body.

In most animals with a digestive tract, digestion occurs in four successive steps, with the digested material moving by muscular contractions through the digestive tube.

Human saliva contains ____ enzymes.

A byproduct of digestion in the stomach of some mammals is ____, and it may be produced in large quantities in ____.

In the human diet, linoleic and linolenic acids are the only essential fatty acid acids.