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Ch. 51 (Immune System) Test - AP Biology
Exam Questions With Verified Answers
List and describe four components of the first line of defense used by the vertebrate body. -
Answers✔*Mucus, Skin, Urine, Cilia*. All part of the *integumentary system*
List and describe four components of the second line of defense used by the vertebrate body. -
Answers✔- Inflammation: redness
- Fever: accelerates immune response
- Phagocytosis: plasma membrane folds inward
- Complacent System: cell membrane attaches to pathogen membrane
What is the role does the lymphatic system play in immunity? - Answers✔The first line of
defense against disease. *Transports* and filters lymph *fluid containing antibodies* and
lymphocytes (good) and *bacteria* (bad) through the *bloodstream*.
Outline the significant steps that occur during an inflammatory response and explain how each
aids in the fight against infection. - Answers✔1.) *Redness: blood rushes* to the wound
2.) *Heat*: *Body Systems speed* up to tackle the invaders
3.) *Swelling*: *White blood cells crowding* the wound to fight bacteria
4.) *Pain*: Made from *pressure* from swelling
What is an antigen? - Answers✔*Stimulates specific immune response, surface identifiers*;
foreign invaders have antigens on their cell surface (epitopes) which are recognized by
antibodies remove or destroy the invader; immune system acts quickly on antigens that it has
seen previously.
Which lymphocytes are involved in the humoral immune response? - Answers✔Cells derived
from *B lymphocytes* that secrete antibodies (defensive proteins) that bind to microbes and
mark them for elimination.
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ALL RIGHTS RESERVED.
Ch. 51 (Immune System) Test - AP Biology
Exam Questions With Verified Answers
List and describe four components of the first line of defense used by the vertebrate body. -
Answers✔*Mucus, Skin, Urine, Cilia*. All part of the *integumentary system*
List and describe four components of the second line of defense used by the vertebrate body. -
Answers✔- Inflammation: redness
- Fever: accelerates immune response
- Phagocytosis: plasma membrane folds inward
- Complacent System: cell membrane attaches to pathogen membrane
What is the role does the lymphatic system play in immunity? - Answers✔The first line of
defense against disease. *Transports* and filters lymph *fluid containing antibodies* and
lymphocytes (good) and *bacteria* (bad) through the *bloodstream*.
Outline the significant steps that occur during an inflammatory response and explain how each
aids in the fight against infection. - Answers✔1.) *Redness: blood rushes* to the wound
2.) *Heat*: *Body Systems speed* up to tackle the invaders
3.) *Swelling*: *White blood cells crowding* the wound to fight bacteria
4.) *Pain*: Made from *pressure* from swelling
What is an antigen? - Answers✔*Stimulates specific immune response, surface identifiers*;
foreign invaders have antigens on their cell surface (epitopes) which are recognized by
antibodies remove or destroy the invader; immune system acts quickly on antigens that it has
seen previously.
Which lymphocytes are involved in the humoral immune response? - Answers✔Cells derived
from *B lymphocytes* that secrete antibodies (defensive proteins) that bind to microbes and
mark them for elimination.
1
