Peptidoglycan Forms Sheets That Stiffen the Cell Walls of Bacteria

question 22

Multiple Choice

Peptidoglycan forms sheets that stiffen the cell walls of bacteria. How is the formation of sheets possible?

• A) The glycosidic linkages between monosaccharides in peptidoglycan are extraordinarily strong.
• B) The polysaccharides in peptidoglycan are highly branched and form a network.
• C) The polysaccharides in peptidoglycan form helical structures, as in cellulose.
• D) Individual strands are joined by peptide bonds-a type of covalent bond.

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Definitions:

Electrical Current

The flow of electric charge through a conductor, typically measured in amperes.

Potassium Ions

Essential electrolytes within the body that play a key role in various cellular functions, including nerve transmission and muscle contraction.

Axon

A long, slender projection of a nerve cell, or neuron, that conducts electrical impulses away from the neuron's cell body.

Repolarize

The process of restoring a cell's membrane potential to its resting negative state after depolarization.