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Medical College Admission Test
Biological and Biochemical Foundations of Living Systems

Identifying Glycosylation Patterns of Carbohydrates

Medium Biochemistry Carbohydrates

Carbohydrates are essential macromolecules in biological systems, serving as a key energy source and structural component. They can be classified as simple carbohydrates, like sugars, or complex carbohydrates, such as starches and fibers. One characteristic of carbohydrates is their ability to undergo various chemical modifications, which can impact their function and properties. For example, glycosylation is the process by which carbohydrates are attached to proteins or lipids, altering their stability, activity, and localization in the cell.

Consider the following polysaccharides commonly found in biological systems: starch, cellulose, and glycogen. Each of these plays distinct roles. While starch is primarily a storage form of glucose in plants, cellulose provides structural support in plant cell walls. Glycogen serves a similar storage function in animals. Based on their structures and functions, which of these carbohydrates would you expect to have a different glycosylation pattern when altered by enzymatic processes?

Hint

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