Which Plasminogen Activator (PA) Is Distinctive Among the Serine Proteases

question 12

Multiple Choice

Which plasminogen activator (PA) is distinctive among the serine proteases because it does not circulate as a zymogen but is fully active toward its substrate plasminogen in a single-chain form?

• A) uPA
• B) uPAR
• C) PLG
• D) tPA

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Definitions:

Kitty Genovese Case

A murder case that became famous for purportedly demonstrating bystander apathy, leading to research on the "bystander effect."

Social Loafing

The phenomenon where individuals exert less effort to achieve a goal when they work in a group than when they work alone.

Group Polarization

The tendency for group members' opinions to become more extreme (either stronger or weaker) after group discussions.

Bystander Effect

A social psychological phenomenon in which individuals are less likely to offer help to a victim when other people are present.