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Adaptive Immunity

Description: Adaptive Immunity Quiz
Number of Questions: 14
Created by:
Tags: immunology adaptive immunity antibodies t cells b cells
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Which type of immune response is mediated by antibodies?

  1. Humoral

  2. Cell-mediated

  3. Innate

  4. Passive

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Correct Option: A
Explanation:

The humoral immune response is mediated by antibodies, which are produced by B cells and plasma cells.

Which type of immune response is mediated by T cells?

  1. Humoral

  2. Cell-mediated

  3. Innate

  4. Passive

Show answer
Correct Option: B
Explanation:

The cell-mediated immune response is mediated by T cells, which directly attack and kill infected cells.

What is the function of antibodies?

  1. To recognize and bind to antigens

  2. To kill infected cells

  3. To produce cytokines

  4. To activate complement

Show answer
Correct Option: A
Explanation:

Antibodies recognize and bind to antigens, which are foreign substances that the immune system recognizes as harmful.

What is the function of T cells?

  1. To recognize and bind to antigens

  2. To kill infected cells

  3. To produce cytokines

  4. To activate complement

Show answer
Correct Option: B
Explanation:

T cells kill infected cells by releasing cytotoxic molecules, such as perforin and granzymes.

What is the function of B cells?

  1. To recognize and bind to antigens

  2. To kill infected cells

  3. To produce antibodies

  4. To activate complement

Show answer
Correct Option: C
Explanation:

B cells produce antibodies, which are proteins that recognize and bind to antigens.

What is the function of helper T cells?

  1. To recognize and bind to antigens

  2. To kill infected cells

  3. To produce cytokines

  4. To activate complement

Show answer
Correct Option: C
Explanation:

Helper T cells produce cytokines, which are small proteins that regulate the immune response.

What is the function of cytotoxic T cells?

  1. To recognize and bind to antigens

  2. To kill infected cells

  3. To produce cytokines

  4. To activate complement

Show answer
Correct Option: B
Explanation:

Cytotoxic T cells kill infected cells by releasing cytotoxic molecules, such as perforin and granzymes.

What is the function of memory cells?

  1. To recognize and bind to antigens

  2. To kill infected cells

  3. To produce antibodies

  4. To provide long-term immunity

Show answer
Correct Option: D
Explanation:

Memory cells provide long-term immunity by remembering the antigens that they have encountered and responding quickly to them if they are encountered again.

What is the difference between active and passive immunity?

  1. Active immunity is mediated by antibodies, while passive immunity is mediated by T cells.

  2. Active immunity is mediated by T cells, while passive immunity is mediated by antibodies.

  3. Active immunity is acquired through vaccination or infection, while passive immunity is acquired through the transfer of antibodies or T cells from another individual.

  4. Active immunity is long-lasting, while passive immunity is short-lived.

Show answer
Correct Option: C
Explanation:

Active immunity is acquired through vaccination or infection, while passive immunity is acquired through the transfer of antibodies or T cells from another individual.

What is the difference between humoral and cell-mediated immunity?

  1. Humoral immunity is mediated by antibodies, while cell-mediated immunity is mediated by T cells.

  2. Humoral immunity is mediated by T cells, while cell-mediated immunity is mediated by antibodies.

  3. Humoral immunity is acquired through vaccination or infection, while cell-mediated immunity is acquired through the transfer of antibodies or T cells from another individual.

  4. Humoral immunity is long-lasting, while cell-mediated immunity is short-lived.

Show answer
Correct Option: A
Explanation:

Humoral immunity is mediated by antibodies, while cell-mediated immunity is mediated by T cells.

What is the role of the MHC in adaptive immunity?

  1. To present antigens to T cells

  2. To produce antibodies

  3. To activate complement

  4. To kill infected cells

Show answer
Correct Option: A
Explanation:

The MHC presents antigens to T cells, which then become activated and can respond to the infection.

What is the role of cytokines in adaptive immunity?

  1. To activate complement

  2. To kill infected cells

  3. To regulate the immune response

  4. To produce antibodies

Show answer
Correct Option: C
Explanation:

Cytokines regulate the immune response by controlling the activation, differentiation, and proliferation of immune cells.

What is the role of complement in adaptive immunity?

  1. To activate complement

  2. To kill infected cells

  3. To regulate the immune response

  4. To produce antibodies

Show answer
Correct Option: B
Explanation:

Complement is a group of proteins that work together to kill infected cells.

What is the role of antibodies in adaptive immunity?

  1. To activate complement

  2. To kill infected cells

  3. To regulate the immune response

  4. To produce antibodies

Show answer
Correct Option: A
Explanation:

Antibodies activate complement, which then kills infected cells.

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