Living Cells Produce Only One Chiral Form of a Biomolecule

question 28

Multiple Choice

Living cells produce only one chiral form of a biomolecule because:

• A) biomolecules, by definition, can exist as only one chiral form.
• B) living cells can only create L isomers.
• C) living cells choose to express only the correct isomer.
• D) living cells have enzymes that are also chiral.
• E) living cells can produce the opposite chiral form only under certain metabolic conditions.

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Definitions:

Cation

A positively charged ion that is created when an atom loses one or more electrons, resulting in more protons than electrons.

Propensity

A natural inclination or tendency to behave in a particular way.

Hydrate

A compound that contains water molecules bound to another compound or within its crystal structure.

Benzophenone

A compound used in organic synthesis and as a photoinitiator, characterized by a central benzene ring bonded to two carbonyl groups.