The Following Structure Represents a Storage Polysaccharide Such as Glycogen

question 12

Multiple Choice

The following structure represents a storage polysaccharide such as glycogen or starch. Each sphere represents a monomer of the polymer. When this structure is broken down during metabolism, the debranching enzyme would hydrolyze monomers at which point in the polymer as indicated by the letters?

• A) A only
• B) B only
• C) C only
• D) Hydrolysis could occur at B or C.
• E) Hydrolysis could occur at A, B, or C.

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Definitions:

Midline

An imaginary line that divides the body into equal left and right halves.

Upward Direction

Movement or orientation towards a higher point or position.

Cell Membrane

The semipermeable membrane surrounding the cytoplasm of a cell, regulating the passage of substances in and out.

Proton

A subatomic particle found in the nucleus of an atom, carrying a positive electric charge.