Question 1
Question
What triggers the activation of the adaptive immune system?
Answer
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Pathogen exposure
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Inflammation
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Antibody production
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Phagocytosis
Question 2
Question
There are two components of the adaptive immune system. What are they called?
Answer
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Cellular immune system
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Humoral immune system
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Antigenic immune system
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Cytotoxic immune system
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Acquired immune system
Question 3
Question
What happens to the response of the immune system on each repeated exposure to a pathogen?
Answer
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It becomes faster
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It becomes more specific
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It causes more inflammation
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It becomes less efficient
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It involves more components of the immune system
Question 4
Question
What cells are involved in humoral immunity?
Answer
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B cells
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T cells
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Natural killer cells
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Phagocytes
Question 5
Question
What cells are involved in cellular immunity?
Answer
-
B cells
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T cells
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Phagocytes
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Natural killer cells
Question 6
Question
Which part of the adaptive immune system produced antibodies?
Question 7
Question
The adaptive immune system is able to remember pathogens in case they present again. True or false?
Question 8
Question
Which cells express CD4?
Answer
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T helper cells
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T killer cells
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T regulatory cells
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Plasma B cells
Question 9
Question
What is the function of T helper cells?
Answer
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Activate macrophages
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Help B cells to produce antibodies
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Remember the pathogen in case of repeat infection
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Produce antibodies
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Activate natural killer cells
Question 10
Question
Why do we need T regulatory cells?
Answer
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To control the immune response
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To ensure the immune response is specific
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To prevent the immune system from attacking healthy cells
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To prevent the immune system from attacking normal flora
Question 11
Question
Which cells expressed CD8?
Answer
-
T killer cells
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T helper cells
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T regulatory cells
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Plasma B cells
Question 12
Question
Which cells have the longest life-span?
Answer
-
T regulatory cells
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Memory B cells
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Plasma B cells
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T helper cells
Question 13
Question
How are antibodies separated into classes?
Question 14
Question
What is the function of membrane bound antibodies?
Question 15
Question
Which type of antibody activates complement?
Question 16
Question
Which cells require an antigen presenting cell to activate them?
Question 17
Question
Which of the following cells can act as antigen presenting cells?
Answer
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Dendritic cells
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Macrophages
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Natural killer cells
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Plasma B cells
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Mast cells
Question 18
Question
Which cells express MHCI?
Answer
-
All nucleated cells
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T helper cells
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Antigen presenting cells
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Plasma B cells
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Natural killer cells
Question 19
Question
Which of the following cells recognised MHCII?
Question 20
Question
Where within the antigen presenting cell is the MHC produced?
Answer
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Endoplasmic reticulum
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Golgi body
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Ribosome
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Nucleus
Question 21
Question
Where is the MCHII complex combined with the antigenic peptides?
Answer
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Endosome
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Endoplasmic reticulum
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Golgi body
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Vesicle
Question 22
Question
The T cell is activated when it detects the MHC-antigen complex. True or false?
Question 23
Question
Which types of hypersensitivity reaction are mediated by antibodies?
Question 24
Question
Which type of hypersensitivity reaction is mediated by IgE?
Question 25
Question
Which of the following are examples of hypersensitivity reactions that are mediated by IgE?
Answer
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Asthma
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Pollen allergy
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SLE
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Myasthenia Gravis
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Grave's disease
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Type I diabetes
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Psoriasis
Question 26
Question
In a type I hypersensitivity reaction, what needs to happen to the antibodies on repeat exposure for there to be a hypersensitivity reaction?
Question 27
Question
Grave's disease is an example of a type II hypersensitivity reaction. What are type II hypersensitivity reactions mediated by?
Question 28
Question
What is another example of a type II hypersensitivity reaction?
Answer
-
Myasthenia Gravis
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Asthma
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Type I diabetes
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SLE
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Coeliac disease
Question 29
Question
How do the antibodies in type II hypersensitivity reactions cause disease?
Answer
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They block the receptor
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They activate the receptor
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They destroy the receptor
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They act as inverse agonists
Question 30
Question
In which type of hypersensitivity reaction after immune complexes formed?
Question 31
Question
Why are immune complexes a problem?
Answer
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Because they can get stuck in the body
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Because they promote autoimmune destruction of cells
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Because they promote other hypersensitivity reactions
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Because they increase the viscosity of blood which can cause thrombosis
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Because they cause lymphadenopathy
Question 32
Question
Antibodies in immune complexes can activate complement. True or false?
Question 33
Question
What are type IV hypersensitivity reactions mediated by?
Question 34
Question
Which of the following are examples of type IV hypersensitivity reactions?
Question 35
Question
How do T helper cell cause hypersensitivity reactions?
Answer
-
Cytokine production that activates macrophages and T cytotoxic cells
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Activation of natural killer cells
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Activation of mast cells causing release of histamine
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Formation of immune complexes which activate complement