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Examen
Immune System Detailed Exam 2025
Abo blood groups - -genetically determined classes of human blood; based on the 
presence or absence of carbohydrates a and b on the surface of red blood cells. The 
abo blood group phenotypes, also called blood types, are a, b, ab, and o. 
 
Acquired immunity - -the kind of defense that is mediated by b lymphocytes (b cells) and 
t lymphocytes (t cells). It exhibits specificity, memory, and self-nonself recognition. Also 
called adaptive immunity. 
 
Active immunity - -long-lasting immu...
Examen
Immune System Exam Questions with Verified Answers Graded A+
PopularImmune System Exam Questions with 
Verified Answers Graded A+ 
Which of the following is a protein containing fluid within lymphatic vessels? 
a) Spleen 
b) Peyer's patches 
c) Lymph nodes 
d) Lymph - Ans -D 
Which of the following are small organs intimately associated with lymphatic vessels? 
a) Spleen 
b) Peyer's patches 
c) Lymph nodes 
d) Lymph - Ans -C 
Which of th
Examen
Immune System Key Concepts, Cells, and Responses Exam 
questions and answers Graded A+ latest update 
What is immunity? -The body's ability to protect itself. 
What are the two categories of cells the immune system distinguishes? - 
Self (own cells
NuevoImmune System Key Concepts, Cells, and Responses Exam 
questions and answers Graded A+ latest update 
What is immunity? -The body's ability to protect itself. 
What are the two categories of cells the immune system distinguishes? - 
Self (own cells) and Non-self (defective cells, bacteria, viruses, parasites, 
allergens, and other pathogens).
Examen
Immune System Exam questions and answers Graded A+ 
latest update 
Pathogens -disease causing agents 
types of pathogens -virus, bacteria, parasites, protist, prion 
virus -covid, hanta, flu, cold 
how to treat a virus? -anti-virals 
bacteria -strep, e.co
NuevoImmune System Exam questions and answers Graded A+ 
latest update 
Pathogens -disease causing agents 
types of pathogens -virus, bacteria, parasites, protist, prion 
virus -covid, hanta, flu, cold 
how to treat a virus? -anti-virals 
bacteria -strep, , salmonella, ear infection 
how to treat bacteria? -anti-bioti
Examen
Immune System Exam questions and answers Graded A+ 
latest update 
innate immune system 
The body's first, non-specific line of defense present at birth. Provides immediate, 
rapid protection against pathogens without prior exposure 
Leads to activ
NuevoImmune System Exam questions and answers Graded A+ 
latest update 
innate immune system 
The body's first, non-specific line of defense present at birth. Provides immediate, 
rapid protection against pathogens without prior exposure 
Leads to activation of the adaptive immune response 
adaptive immune system 
The bodies system of spec
Examen
Immune System Exam questions and answers Graded A+ 
latest update
NuevoImmune System Exam questions and answers Graded A+ 
latest update 
Immune System 
Body's defense system that protects against disease and harmful invaders 
(pathogens). Made of cells, tissues, and organs (they work together) 
Phagocytosis 
Engulf/eat pathogens
Examen
Immune System Exam questions and answers Graded A+ 
latest update
NuevoImmune System Exam questions and answers Graded A+ 
latest update 
Functions of the spleen -A major organ of the immune system that 
removes old RBCs, produces new blood cells & acts as a blood reservoir. 
Lymphatic system -A complex network of thin vessels, valves, ducts, nodes 
and organs which collects, filters & clears fluid coming from around the tissues.
Examen
Immune System Exam questions and answers Graded A+ 
latest update
NuevoImmune System Exam questions and answers Graded A+ 
latest update 
Arrange the following in the proper sequence in which they occur during the 
inflammatory response. 
1. Neutrophils roll along endothelium 
2. Integrin activation 
3. Margination -1, 2, 3 
During the inflammatory response ______ degranulate and release ________. - 
mast cells; histamine 
(inflammatory response)Which o
Examen
Immune System Exam questions and answers Graded A+ 
latest update 
Main job of immune system -Protection 
Harmful disease-causing germ -Pathogen 
Examples of pathogens -Bacteria, viruses, fungi 
Disease caused by pathogens -Infectious disease 
Immune syst
NuevoImmune System Exam questions and answers Graded A+ 
latest update 
Main job of immune system -Protection 
Harmful disease-causing germ -Pathogen 
Examples of pathogens -Bacteria, viruses, fungi 
Disease caused by pathogens -Infectious disease 
Immune system distinguishes -
Examen
Immune System Exam questions and answers Graded A+ 
latest update 
What is Innate/Non-specific immunity? 
Inborn defense. First and second line of defense and defends against anything 
foreign 
What is adaptive/spe
NuevoImmune System Exam questions and answers Graded A+ 
latest update 
What is Innate/Non-specific immunity? 
Inborn defense. First and second line of defense and defends against anything 
foreign 
What is adaptive/spe
Examen
Immune System Exam questions and answers Graded A+ 
latest update 
Innate Immunity 
Responds to not all not just pathogen 
How many lines of defenses does Innate Immunity have? 
It has 2 lines of defense 
What is the 1st defense? 
Physical barriers like s
NuevoImmune System Exam questions and answers Graded A+ 
latest update 
Innate Immunity 
Responds to not all not just pathogen 
How many lines of defenses does Innate Immunity have? 
It has 2 lines of defense 
What is the 1st defense? 
Physical barriers like skin, mucus membranes, and secretions (Saliva, Tears, 
Sweat, and Stomach
Examen
Immune System Exam questions and answers Graded A+ 
latest update 
Immune system 
The function of this system is to enable an animal to avoid or limit infections by 
pathogens. It does so by "distinguishing self from not self". 
Distinguish
NuevoImmune System Exam questions and answers Graded A+ 
latest update 
Immune system 
The function of this system is to enable an animal to avoid or limit infections by 
pathogens. It does so by "distinguishing self from not self". 
Distinguish self from not self 
Fundamental ability of the immune system to recognize and tolerate the body's 
own cells and proteins while identifying and destroying foreign entities like 
pathogens, toxins, or transplanted tissues. 
Pathogens 
Bacteria, viruse...
Examen
Immune System Exam questions and answers Graded A+ 
latest update 
Leukocytes -White blood cells that serve as the body's basic defense 
mechanism. 
Phagocytes -Cells that are part of the immune system and destroy 
pathogens.
NuevoImmune System Exam questions and answers Graded A+ 
latest update 
Leukocytes -White blood cells that serve as the body's basic defense 
mechanism. 
Phagocytes -Cells that are part of the immune system and destroy 
pathogens.
Examen
Immune System Exam questions and answers Graded A+ 
latest update 
Innate Immunity 
Responds to not all not just pathogen 
How many lines of defenses does Innate Immunity have? 
It has 2 lines of defense 
What is the 1st defense? 
Physical barriers like s
NuevoImmune System Exam questions and answers Graded A+ 
latest update 
Innate Immunity 
Responds to not all not just pathogen 
How many lines of defenses does Innate Immunity have? 
It has 2 lines of defense 
What is the 1st defense? 
Physical barriers like skin, mucus membranes, and secretions (Saliva, Tears, 
Sweat, and Stomach
Examen
Immune System Concepts and Definitions Exam questions and 
answers Graded A+ latest update 
What does PAMPs stand for? 
Pathogen-Associated Molecular Patterns 
What are PRRs? 
Pattern Recognition Receptors that detect PAMPs. 
What is the function of MHC I
NuevoImmune System Concepts and Definitions Exam questions and 
answers Graded A+ latest update 
What does PAMPs stand for? 
Pathogen-Associated Molecular Patterns 
What are PRRs? 
Pattern Recognition Receptors that detect PAMPs. 
What is the function of MHC I? 
Presents endogenous antigens to CD8+ cytotoxic T cells. 
What is the function of MHC II? 
Presents exogenous antig
Examen
Immune System Cells and Molecular Defenses Innate and 
Adaptive Responses Exam questions and answers Graded A+ 
latest update 
What are the primary cells of the innate immune system? 
Natural Killer Cells 
Where are immune system cells located? 
In the re
NuevoImmune System Cells and Molecular Defenses Innate and 
Adaptive Responses Exam questions and answers Graded A+ 
latest update 
What are the primary cells of the innate immune system? 
Natural Killer Cells 
Where are immune system cells located? 
In the red bone marrow 
What is the main function of Natural Killer Cells? 
To directly kill virus-infected
Examen
Immune Response Exam questions and answers Graded A+ 
latest update 
antibody 
made specifically against antigen 
- Triggers immune system 
- 2 parts: 
- Recognize/bind to antigen (variable) 
- Interact with immune system (constant) 
innate immunity 
non-
NuevoImmune Response Exam questions and answers Graded A+ 
latest update 
antibody 
made specifically against antigen 
- Triggers immune system 
- 2 parts: 
- Recognize/bind to antigen (variable) 
- Interact with immune system (constant) 
innate immunity 
non-specific immunity or resistance to pathogens 
- Goal is to reduce # of pathogens below disease threshold 
components of innate immu
Examen
Immune I and II Exam questions and answers Graded A+ latest 
update 
What is the main function of macrophages? - Phagocytosis, antigen 
presentation, and cytokine release. 
What is special about macrophages compared to neutrophils? - They are 
long-lived
NuevoImmune I and II Exam questions and answers Graded A+ latest 
update 
What is the main function of macrophages? - Phagocytosis, antigen 
presentation, and cytokine release. 
What is special about macrophages compared to neutrophils? - They are 
long-lived and can present antigens to T cells.
Examen
Immune I and II Exam questions and answers Graded A+ latest 
update 
What is the main function of macrophages? -Phagocytosis, antigen 
presentation, and cytokine release. 
What is special about macrophages compared to neutrophils? -They are 
long-lived an
NuevoImmune I and II Exam questions and answers Graded A+ latest 
update 
What is the main function of macrophages? -Phagocytosis, antigen 
presentation, and cytokine release. 
What is special about macrophages compared to neutrophils? -They are 
long-lived and can present antigens to T cells.
Examen
Immune Exam questions and answers Graded A+ latest 
update 
Inanate immunity 
1st line of defense, inherited, nonspecific 
Adaptive Immunity 
2nd line of defense, specific 
when does innate immunity occur? 
within 12 hours 
when does adaptive immu
NuevoImmune Exam questions and answers Graded A+ latest 
update 
Inanate immunity 
1st line of defense, inherited, nonspecific 
Adaptive Immunity 
2nd line of defense, specific 
when does innate immunity occur? 
within 12 hours 
when does adaptive immu
Examen
Immune Exam questions and answers Graded A+ latest 
update 
duodenum 
functions in digestion, pancreatic juices/bile enter here 
ileum and jejunum 
sections of the small intestine that absorb nutrients into the bloodstream 
villi and microvilli 
increase
NuevoImmune Exam questions and answers Graded A+ latest 
update 
duodenum 
functions in digestion, pancreatic juices/bile enter here 
ileum and jejunum 
sections of the small intestine that absorb nutrients into the bloodstream 
villi and microvilli 
increase surface area f
Examen
Immune Exam questions and answers Graded A+ latest 
update
NuevoImmune Exam questions and answers Graded A+ latest 
update 
Inanate immunity 
1st line of defense, inherited, nonspecific 
Adaptive Immunity 
2nd line of defense, specific 
when does innate immunity occur? 
within 12 hours 
when does adaptive immunity occur 
days after 
Phagocytic cells 
Cells that engulf and digest pathoge