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Cells
Cell recognition and the immune system
B lymphocytes and humoral immunity
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Created by
Jasmine Smith
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Cards (21)
What does humoral immunity involve?
Antibodies
soluble in
blood
and tissue fluid
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What do different types of B cells produce?
Different
antibodies
that respond to
antigens
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What happens when an antigen enters the blood or tissue fluid?
A specific
B cell
produces a complementary
antibody
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How does the antibody interact with the antigen?
The antibody attaches to the antigen and enters the
B cell
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What is the process called when T helper cells stimulate B cell division?
Clonal selection
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Why do pathogens have many proteins on their surface?
They are all
antigens
that trigger
B cell
response
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What are monoclonal antibodies?
Antibodies produced by identical
B cell
clones
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What are the two types of cells that B cell clones can develop into?
Plasma cells
: secrete
antibodies
into blood plasma
Memory cells: responsible for
secondary immune response
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What is the role of plasma cells in the immune response?
They secrete
antibodies
for immediate defense
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How long do plasma cells survive?
A few days
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How many antibodies can plasma cells make during their lifespan?
Around
2000
antibodies
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What is the function of memory cells?
They provide a faster
secondary immune response
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How do memory cells respond when a pathogen is detected?
They divide rapidly into
plasma
and more memory cells
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How does the speed of plasma cell antibody production compare between primary and secondary immune responses?
Faster
in the
secondary
immune response
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What is the definition of humoral immunity?
Immune response involving
antibodies
in
fluids
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What role do T helper cells play in B cell activation?
They stimulate B cell division by
mitosis
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What is the difference between primary and secondary immune responses?
Secondary
response is
faster
than
primary
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How do memory cells compare to plasma cells in terms of lifespan?
Memory
cells
live
longer
than
plasma
cells
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What is the process of endocytosis in B cells?
Antigen enters the B cell for
processing
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Why is clonal selection significant in the immune response?
It ensures specific
antibodies
are produced
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What is the relationship between antigens and antibodies?
Antigens
trigger
antibody
production
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