The Major Difference Between Gram-Positive and Gram-Negative Bacteria Is That

question 18

Multiple Choice

The major difference between gram-positive and gram-negative bacteria is that:

• A)the peptidoglycan layer in gram-positive bacteria is substantially thinner than in gram-negative bacteria.
• B)gram-positive bacteria contain a periplasmic space,whereas gram-negative bacteria do not.
• C)flagella are only present in gram-positive bacteria.
• D)gram-negative bacteria contain an outer membrane that functions as the cell's initial barrier to the environment.

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Definitions:

Synthetic Steps

The individual stages or reactions conducted in the laboratory to synthesize a desired chemical compound.

Reaction Product

The substance(s) formed as a result of a chemical reaction between reactants.

Lucas Reagent

A solution of zinc chloride in concentrated hydrochloric acid used to classify alcohols of low molecular weight.

Trans-4-methylcyclohexanol

A chemical compound featuring a cyclohexane ring with a methyl group and an alcohol group in a trans configuration.