Which Substance Forms a Complex with Protein C in the Inhibition

question 32

Multiple Choice

Which substance forms a complex with protein C in the inhibition of activated factors V and VIII?

• A) Protein S
• B) Urokinase
• C) Tissue plasminogen activator (TPA)
• D) Kallikrein
• E) None of the above

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Definitions:

Chiral Carbon

A carbon atom attached to four different groups, providing a molecule with a non-superposable mirror image.

Asymmetric Carbon

A carbon atom bonded to four different groups, creating a chiral center and potentially optical activity in the molecule.

R or S

Descriptors in chemistry that indicate the absolute configuration of chiral centers in molecules, determining their spatial arrangement as right-handed (R) or left-handed (S).

Stereochemistry

The study of the spatial arrangement of atoms within molecules and its influence on the chemical and physical properties of substances.