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Multiple Choice
What is the primary structural difference between a monosaccharide and a polysaccharide?
A
Monosaccharides are single sugar units, while polysaccharides are composed of multiple sugar units.
B
Monosaccharides contain nitrogen, whereas polysaccharides do not.
C
Monosaccharides are insoluble in water, while polysaccharides are soluble.
D
Monosaccharides are always sweet, whereas polysaccharides are always tasteless.
Verified step by step guidance
1
Begin by understanding the basic definitions: Monosaccharides are the simplest form of carbohydrates, consisting of a single sugar unit. Polysaccharides are complex carbohydrates composed of multiple monosaccharide units linked together.
Consider the structural composition: Monosaccharides typically have a general formula of \( C_nH_{2n}O_n \), where \( n \) is usually between 3 and 7. Polysaccharides are formed by the polymerization of monosaccharides, resulting in long chains.
Examine the solubility and taste: Monosaccharides are generally soluble in water and have a sweet taste due to their simple structure. Polysaccharides, being larger and more complex, may vary in solubility and are often tasteless.
Clarify the presence of nitrogen: Monosaccharides do not contain nitrogen in their basic structure. Both monosaccharides and polysaccharides are primarily composed of carbon, hydrogen, and oxygen.
Summarize the primary structural difference: The key difference lies in the number of sugar units. Monosaccharides are single units, while polysaccharides consist of multiple linked units, forming complex structures.