AP BIOLOGY

THE HUMAN IMMUNE SYSTEM

NONSPECIFIC DEFENSE MECHANISMS

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
Which of the following is a non-specific response?
A
Fever
B
B cells
C
helper T cells
D
killer (cytotoxic) t cells
Explanation: 

Detailed explanation-1: -Fever is considered a nonspecific defense mechanism because it develops in response to numerous traumas.

Detailed explanation-2: -Nonspecific responses that alter the intracellular environment include fever, inflammation, and interferon. These multiple defenses function with great complexity because of their interactions with one another.

Detailed explanation-3: -INNATE IMMUNITY. Innate, or nonspecific, immunity is the defense system with which you were born. It protects you against all antigens. Innate immunity involves barriers that keep harmful materials from entering your body. These barriers form the first line of defense in the immune response.

Detailed explanation-4: -Nonspecific defense mechanisms include the skin, mucous membranes, secretions, excretions, enzymes, inflammatory responses, genetic factors, hormonal responses, nutritional status, behavior patterns, and the presence of other diseases.

Detailed explanation-5: -Innate immune responses are not specific to a particular pathogen in the way that the adaptive immune responses are. They depend on a group of proteins and phagocytic cells that recognize conserved features of pathogens and become quickly activated to help destroy invaders.

There is 1 question to complete.