Exam 3: Chemical, Biological, and Physiological Aspects of Nutrition

A _______________ releases or binds hydrogen ions in order to resist changes in pH.

When a substance crosses a cell membrane without the assistance of a transport protein or expenditure of energy, this process is categorized as a type of passive transport called _______________.

The gastrointestinal tract can be thought of as a hollow tube that runs from the _____.

Oxidation is the _____.

Why are hormones critical to the proper functioning of the body?

The digestive tract contains four major tissue layers—the mucosa, submucosa, muscularis, and serosa.

The accessory organs are organs that participate in digestion but are not part of the GI tract, and include the _____.

What happen iin all the foods thaea100% bioavailable?

What the symptoms of celiac disease?

Elemental iron is composed of _____ atoms.

Prebiotic foods contain live bacterial cultures that colonize the colon and have health-promoting benefits.

If Sean has his gallbladder removed, he could experience some problems digesting _____.

Water and other essential substances are returned to the blood by the kidneys in a process called _____.

The _______________ ranges from 0 to 14 and signifies the acidity or alkalinity of a solution.

Which type of tissue plays an important role in communications within the body?

The accessory organs of the digestive system release a variety of _____ needed for digestion.

What controls the movement of food from the stomach into the duodenum?

Digestive enzymes break starch and protein into smaller components through the chemical process of _____.

The gastroesophageal sphincter regulates the movement of food from the stomach into the duodenum.

The lymphatic system transports fat-soluble nutrients away from the GI tract.