chapter 3 nutrition

The gallbladder stores and concentrates ________ .

What part of the intestinal tract prevents backflow of food from the stomach into the esophagus?

As a(n) ________ , an enzyme does not change its chemical structure while promoting other chemical reactions.

What transport process accounts for the absorption of water?

Which gastrointestinal hormone stimulates secretion of the components of hydrochloric acid?

Gastrointestinal bacteria in the body ________ .

Which process best describes the action of the pancreas with respect to digestive secretions?

The inner surface of the small intestine ________ .

Which energy nutrients benefit most by thorough chewing before swallowing?

What organ is the first to receive nutrients that have been absorbed from the digestive tract?

What kind of nutrients does the lymphatic system carry to the bloodstream?

At what pH level do the gastrin-producing cells stop secreting gastrin into the stomach?

Which nutrients take longer for your body to digest than others?

The cartilage in the throat that guards the entrance to the trachea and prevents fluid of food from entering it when a person swallows is known as the ________ .

What term applies to the wavelike muscular contractions that move food along the digestive tract?