List the three most common types of polysaccharides in nutrition, and describe each one in terms of its function and monosaccharide composition


The three major polysaccharides are glycogen, starches, and dietary fibers. Glycogen is found in the muscle and liver of animals, while starch and fibers are both plant-based polysaccharides. Glycogen, which serves as the glucose storage for animals, is comprised entirely of glucose molecules attached together in a highly branched structure. Starches are how plants store their excess glucose, and therefore are also comprised entirely of glucose molecules; however, the glucose molecules are linked together in long branched and unbranched chains. Fibers, which comprise the structural parts of plants, are mostly polysaccharides, though it can be comprised of other chemicals and different monosaccharides. However, these fibers cannot be broken down into monosaccharides by enzymes in the digestive tract due to differences in the type of bonds that hold the monosaccharides together. These types of polysaccharides cannot contribute energy to the body, as they pass through undigested.?

Nutritional Science

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Because of a condition known as atrophic gastritis, older adults sometimes need to be given

periodic injections of B12. Indicate whether the statement is true or false

Nutritional Science

From _____ years, children can normally hop, skip, and throw a ball and have increasingly good coordination; they master buttons and shoelaces; and can use a knife and fork and are good self-feeders

a. one to two b. two to three c. three to four d. four to five e. five to six

Nutritional Science

In confections, lactose

a. inhibits bloom defect. b. provides lecithin and monoglycerides, which aid in emulsification. c. provides a reducing sugar moiety that can participate in Maillard browning. d. produces desirable or undesirable flavor compounds through oxidation and/or hydrolysis.

Nutritional Science

According to scientific research, the dietary supplement most likely to improve performance is:

a. chromium picolinate. b. antioxidant vitamins. c. creatine. d. branched chained amino acids.

Nutritional Science