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Questions and Answers
Which of the following is a polysaccharide found in plant cell walls?
Which of the following is a polysaccharide found in plant cell walls?
What is the most abundant disaccharide composed of?
What is the most abundant disaccharide composed of?
What is the difference between reducing and non-reducing disaccharides?
What is the difference between reducing and non-reducing disaccharides?
What is the primary role of lactate in the body during exercise?
What is the primary role of lactate in the body during exercise?
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What is the primary difference between slow-twitch oxidative and glycolytic muscle fibers?
What is the primary difference between slow-twitch oxidative and glycolytic muscle fibers?
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What is the primary function of the bicarbonate buffering system during exercise?
What is the primary function of the bicarbonate buffering system during exercise?
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What is the process of glycolysis?
What is the process of glycolysis?
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What is the role of lactate in the body during exercise?
What is the role of lactate in the body during exercise?
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What is the mechanism of the bicarbonate buffering system during exercise?
What is the mechanism of the bicarbonate buffering system during exercise?
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Study Notes
Carbohydrates: Structure, Classification, and Use in Living Organisms
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Carbohydrates are organic compounds made up of carbon, hydrogen, and oxygen with a hydrogen-oxygen atom ratio of 2:1.
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The term carbohydrate is used synonymously with saccharide and includes sugars, starch, and cellulose.
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Carbohydrates are divided into monosaccharides, disaccharides, oligosaccharides, and polysaccharides.
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Monosaccharides and disaccharides are commonly referred to as sugars and their names often end in the suffix -ose.
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Polysaccharides serve as an energy store and as structural components in living organisms.
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Carbohydrates are found in a wide variety of natural and processed foods, including starch in cereals and sugars in table sugar, milk, and honey.
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Cellulose, a polysaccharide found in plant cell walls, is one of the main components of insoluble dietary fiber.
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Monosaccharides are the simplest carbohydrates and cannot be hydrolyzed to smaller carbohydrates.
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Monosaccharides are classified based on the placement of their carbonyl group, the number of carbon atoms they contain, and their chiral handedness.
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Monosaccharides can exist in both straight-chain and cyclic forms, with the cyclic form having an anomeric carbon that becomes a stereogenic center.
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Disaccharides are composed of two monosaccharide units bound by a glycosidic linkage formed via a dehydration reaction.
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Sucrose is the most abundant disaccharide and is composed of one D-glucose molecule and one D-fructose molecule.Carbohydrates: Types, Classification, Nutrition, and Health Effects
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Carbohydrates are organic compounds made up of carbon, hydrogen, and oxygen, and are an important source of energy for living organisms.
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Disaccharides, such as lactose, maltose, and cellobiose, are composed of two monosaccharides linked together.
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Carbohydrates can be classified into two types: reducing and non-reducing disaccharides, depending on the presence of a functional group.
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Simple sugars provide 3.87 kilocalories of energy per gram, while complex carbohydrates provide 3.57 to 4.12 kilocalories per gram.
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Processed and refined foods, such as sweets, cookies, and soft drinks, are high in carbohydrates, while unrefined foods, such as beans, tubers, and unrefined fruits, are lower in carbohydrates.
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Glucose is a universal source of energy, although other monosaccharides and disaccharides can also be metabolized by organisms.
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Polysaccharides are a common source of energy, but not all organisms can metabolize them, such as cellulose and chitin.
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Carbohydrates are divided into simple and complex types, but this distinction has little value in determining their nutritional quality.
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Glycemic index and glycemic load are used to rank carbohydrate-rich foods based on their effects on blood glucose levels, while the insulin index ranks foods based on their effects on blood insulin levels.
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Low-carbohydrate diets may miss out on health advantages, but can be effective in achieving weight loss over the short term.
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The ketogenic diet is an extreme form of low-carbohydrate diet used in treating epilepsy, but may cause undesirable side effects when used for weight loss.
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Carbohydrate metabolism involves the formation, breakdown, and interconversion of carbohydrates in living organisms, with glucose being the most important carbohydrate.
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Description
Test your knowledge on carbohydrates with this informative quiz! Learn about the structure, classification, and uses of carbohydrates in living organisms. Explore the different types of carbohydrates, including monosaccharides, disaccharides, oligosaccharides, and polysaccharides. Discover the nutritional value of carbohydrates and their effects on health. Challenge yourself with questions on carbohydrate metabolism, glycemic index, and glycemic load. This quiz is perfect for anyone interested in improving their understanding of carbohydrates and their