Questions and Answers
What is the term for carbohydrates composed of 3-10 sugar molecules bonded together?
What is the primary function of carbohydrates in the human body?
Which of the following is an example of a refined carbohydrate source?
What is the importance of fiber in the diet?
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What is the term for a carbohydrate composed of a single sugar molecule?
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Study Notes
Classification of Carbohydrates
-
Simple Carbohydrates (Sugars)
- Monosaccharides: single sugar molecules
- Examples: glucose, fructose, galactose
- Disaccharides: two sugar molecules bonded together
- Examples: sucrose (table sugar), lactose (milk sugar), maltose
- Monosaccharides: single sugar molecules
-
Complex Carbohydrates (Polysaccharides)
- Oligosaccharides: 3-10 sugar molecules bonded together
- Examples: raffinose, stachyose
- Polysaccharides: 10 or more sugar molecules bonded together
- Examples: starch, glycogen, cellulose, chitin
- Oligosaccharides: 3-10 sugar molecules bonded together
Functions of Carbohydrates
- Energy Source: primary source of energy for the body
- Structural Role: component of cell walls, exoskeletons, and other structures
- Fiber: non-digestible carbohydrates that aid in digestion and satiety
Sources of Carbohydrates
- Plant-based: fruits, vegetables, grains, legumes
- Animal-based: milk, honey, lactose-containing products
- Refined: sugar, white bread, pasta, sweetened beverages
Importance of Carbohydrates
- Brain Function: primary source of energy for the brain
- Physical Performance: essential for energy production during exercise
- Digestive Health: fiber helps maintain healthy gut bacteria and bowel function
Classification of Carbohydrates
- Monosaccharides are single sugar molecules, examples include glucose, fructose, and galactose.
- Disaccharides are two sugar molecules bonded together, examples include sucrose (table sugar), lactose (milk sugar), and maltose.
- Oligosaccharides are 3-10 sugar molecules bonded together, examples include raffinose and stachyose.
- Polysaccharides are 10 or more sugar molecules bonded together, examples include starch, glycogen, cellulose, and chitin.
Functions of Carbohydrates
- Carbohydrates serve as the primary source of energy for the body.
- They play a structural role as a component of cell walls, exoskeletons, and other structures.
- Fiber, a type of carbohydrate, aids in digestion and satiety.
Sources of Carbohydrates
- Plant-based sources include fruits, vegetables, grains, and legumes.
- Animal-based sources include milk, honey, and lactose-containing products.
- Refined sources include sugar, white bread, pasta, and sweetened beverages.
Importance of Carbohydrates
- Carbohydrates are the primary source of energy for the brain.
- They are essential for energy production during exercise and physical performance.
- Fiber helps maintain healthy gut bacteria and bowel function, promoting digestive health.
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Description
This quiz tests your knowledge of carbohydrates, including simple sugars, complex polysaccharides, and their examples. Learn about monosaccharides, disaccharides, oligosaccharides, and polysaccharides.