2. What distinguishes fiber from other types of carbohydrates?
a) It can be easily digested
b) It breaks down into glucose in the body
c) It remains undigested in the human body
d) It is a type of protein
Carbohydrates serve as vital macronutrients, supplying the body's primary energy source. These compounds, composed of carbon, hydrogen, and oxygen atoms, can be classified into various categories:
Monosaccharides: The most basic carbohydrates consist of individual sugar molecules, including glucose, fructose, and galactose.
Disaccharides: These carbohydrates form when two monosaccharide units combine. Examples include sucrose (glucose + fructose), lactose (glucose + galactose), and maltose (glucose + glucose).
Oligosaccharides: This category encompasses carbohydrates with a small number of monosaccharide units, typically ranging from 3 to 10.
Polysaccharides: Complex carbohydrates are formed from multiple monosaccharide units. Notable examples include starch, glycogen, and cellulose.
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