Exam 4: Fiber

Dr.Smith has prescribed a high-fiber diet (35-40 g/day)with special emphasis on the water-insoluble fibers for Mr.Brown.How would this diet protect against colorectal cancer? Give examples of foods that contain water-insoluble fibers.

Match the fiber with an appropriate description. -pectin

An individual whose diet is lacking in pectins and β-glucans might suffer with hypercholesterolemia.

What are the hydrocolloids that are secreted at a site of injury on a plant or surround the endosperm of some seeds and that are used as thickening agents?

Match the condition with the benefit provided by the fiber. -constipation

Match the condition with the benefit provided by the fiber. -satiety

Which volatile short-chain fatty acid is believed to lower serum cholesterol by acting as an inhibitor of cholesterol biosynthesis?

Which group of high-fiber foods contains the greatest quantities of hemicellulose?

Diets low in fat and rich in high-fiber foods may reduce the risk of ____.

Gums are found in ____.

Discuss the benefits of fermentable fibers in terms of the production of short-chain fatty acids.