Chapter 7 Flashcards
Review Questions (33 cards)
What disease associated with large intakes of fructose in inactive people has recently gained more attention as a health concern?
non-alcoholic liver disease
What term is defined as the combined effect of both a carbohydrate’s glycemic index (GI) score and the amount of that carbohydrate consumed?
glycemic load
In which part of the body does carbohydrate digestion begin?
in the mouth with salivary amylase
What glycemic score ranks a carbohydrate food as a low GI food?
GI score under 55
Which health benefit is attributed to soluble fiber?
Reduced risk for cardiovascular disease by binding to cholesterol particles
How many sugar units are contained in oligosaccharides?
3-10 sugar units
What is the current daily fiber intake recommendation for women in the U.S.?
28 grams of fiber daily
What is the current daily fiber intake recommendation for men in the U.S.?
35 grams of fiber daily
Which sweetener is not considered a mono- or disaccharide and is extracted from chicory root?
inulin
Which complex carbohydrate chain contains straight-chain structures?
amylose
What are the current estimated daily intakes of fiber for men and women in the U.S.?
18 grams for men; 15 grams for women
Which two monosaccharides combine to make sucrose?
Glucose and fructose
From the options provided, which carbohydrate food has the lowest glycemic index (GI) score? white bread; hummus; hard candy; orange juice
hummus
Because of the catabolic nature of exercise, insulin release is largely suppressed during an exercise bout. How does glucose, consumed during a workout, then enter the cell?
The body relies upon non-insulin mediated glucose uptake.
What is the second priority for ingested carbohydrates in the human body once immediate fuel needs have been met?
Replenish depleted glycogen stores in the liver and muscles.
Which polysaccharide is digested fastest?
Amylopectin
How much glycogen can the adult liver store?
50 grams per Kg
What is the current RDA for carbohydrates for adults?
130 grams
The United States consumes more sugar than any other country in the world. From the options provided, what food category represents the largest source of sugar intake in the U.S. diet?
beverages
What is the recommended amount of added sugar suggested by the American Heart Association for American adult women?
A limit of 6 added teaspoons
During exercise, stored molecules of carbohydrates are broken down to glucose to serve as a fuel. What term defines the breakdown of stored glycogen?
Glycogenolysis
What is the first step of carbohydrate metabolism, an anaerobic pathway, that breaks glucose or glycogen down to pyruvate?
glycolysis
What is the vein that transports blood from the spleen, stomach, pancreas, and the intestinal tract to the liver?
Hepatic portal vein
What glycemic score ranks a carbohydrate food as a medium GI food?
GI score between 56 and 69