Virulent Staphylococci Produce an Enzyme Which Coats the Bacterial Cells

question 26

Multiple Choice

Virulent staphylococci produce an enzyme which coats the bacterial cells with fibrin and protects them against phagocytes.This enzyme is called

• A)coagulase.
• B)streptokinase.
• C)hyaluronidase.
• D)collagenase.
• E)keratinase.

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Definitions:

Token Economy

A behavior modification system based on the systematic reinforcement of target behavior through the distribution and exchange of tokens that can be exchanged for desired incentives.

External Variable

A factor outside the control of individuals that can affect their actions, outcomes, or a study's results, often considered in research to ensure validity.

Self-control

The ability to regulate one's emotions, thoughts, and behavior in the face of temptations and impulses.

Negative Reinforcement

A behavioral principle where the removal of an unpleasant stimulus following a behavior increases the likelihood of that behavior being repeated in the future.