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Immunology Activation Receptors and MHC Class I Molecules

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Immunology Activation Receptors and MHC Class I Molecules

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Questions and Answers

What is the role of plasma cells?

Activate B lymphocytes

Secrete antibodies (correct)

Activate complement

Trigger mast cell degranulation

Which type of antibody is good at causing antigen clumping and activating complement?

IgA

IgE (correct)

IgD

None of the above

What is the first type of antibody to be secreted in response to a new antigen?

IgA

IgE

IgD (correct)

None of the above

What happens when some of the B cells differentiate into memory B cells?

They become plasma cells and secrete antibodies Signup and view all the answers

What is the function of the activation receptor for MHC class I molecules?

To activate MHC class I molecules Signup and view all the answers

How does the body respond to a vaccine?

By producing an immune response to a specific pathogen Signup and view all the answers

What is the purpose of the membrane attack complex?

To destroy foreign cells or pathogens Signup and view all the answers

What is the role of the reduction in MHC class I molecules?

To evade immune recognition by infected cells Signup and view all the answers

Which type of immunity is slower and specific in targeting pathogens?

Acquired immunity Signup and view all the answers

Which specialized lymphoid organ monitors blood?

Spleen Signup and view all the answers

Which element is not part of the innate immune system?

Tonsils Signup and view all the answers

What is the main function of natural killer (NK) cells in the immune system?

Destroy infected cells Signup and view all the answers

What is the normal range for hematocrit?

37-54% Signup and view all the answers

Which plasma protein is responsible for generating colloid osmotic pressure?

Albumins Signup and view all the answers

What is the primary function of thrombocytes in the blood?

Blood clotting Signup and view all the answers

What is the main function of granulocytes in the blood?

Immune response Signup and view all the answers

What is the role of erythrocytes in the blood?

Oxygen transport Signup and view all the answers

In the given case study, what could be a possible reason for Erica's symptoms?

Malnutrition from omitting animal products Signup and view all the answers