What Feature of Mycobacteria Is Responsible for the Unusually Slow

question 44

Multiple Choice

What feature of mycobacteria is responsible for the unusually slow growth of these bacteria?

• A) Their low tolerance for oxygen retards their growth.
• B) They cannot fully metabolize carbohydrates and must rely on fermentation.
• C) They lack a cell wall and are extremely fragile.
• D) The mycolic acid in their cell walls requires signification metabolic investment.
• E) They have limited numbers of ribosomes so protein production is slow.

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Definitions:

Complete Medium

A culture medium that contains all the nutrients needed for the growth and proliferation of a wide range of microorganisms.

Mutant Strains

Variants of organisms, typically microorganisms, that have undergone mutations distinguishing them from the parent strain.

Anticodon

A sequence of three nucleotides forming a unit of genetic code in a transfer RNA molecule, corresponding to a complementary codon in messenger RNA.

Molecule

The smallest unit of a chemical compound that can exist, consisting of two or more atoms bonded together.