Common Properties of Both the Cell-Mediated and Humoral Immune Systems

question 11

Multiple Choice

Common properties of both the cell-mediated and humoral immune systems include: (Select all that apply.)

• A)Self-recognition: the ability to recognize the body's own proteins and refrain from attacking them.
• B)Recognition of common pathogenic features such as mannose in bacterial cell walls.
• C)Specificity: the ability to react with molecules bearing a specific marker.
• D)Both react in the same way regardless of the nature of the offending agents.
• E)Memory: the ability to mount a more rapid attack on a foreign antigen because of previous exposure.
• F)Self-regulation: the ability to "turn on" when a foreign antigen invades and to "turn off" when the invasion has been eradicated.

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Definitions:

Chemical Reaction

A process that leads to the transformation of one set of chemical substances to another through the breaking and forming of chemical bonds.

Activation Energy

The minimum amount of energy that is required to initiate a chemical reaction, determining the reaction rate.

Enzymes

Biological molecules that act as catalysts, speeding up chemical reactions in living organisms without being consumed in the process.

Enzyme

Biomolecules that act as catalysts, speeding up specific biochemical reactions in the body without being consumed in the process.