Adaptive Immunity Is Sometimes Also Called Acquired Immunity

question 21

Multiple Choice

Adaptive immunity is sometimes also called acquired immunity. Which of the following statements provides a basis for the alternative name?

• A) To become activated, lymphocytes require exposure to the antigenic determinant for which they are specific.
• B) Lymphocytes of the adaptive immune system are highly specific for a single antigenic determinant.
• C) Activated lymphocytes produce daughter cells that are identical in specificity and function.
• D) Activated lymphocytes may persist for years in the body.
• E) Lymphocytes reactive to normal body components are removed.

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Definitions:

Abdominal Cavity

A large body cavity in humans housing many vital organs including the stomach, liver, and intestines, bounded by the abdomen.

Axillary Region

The area under the joint where the arm connects to the shoulder, commonly known as the armpit.

Armpit

The underarm area of the body where the arm joins the shoulder, containing sweat glands and hair.

Positive Feedback

A biological mechanism in which the end product of a process enhances its own production or effect.