Chapter 16: Adaptive Immunity HW

IgA

Breast milk and colostrum, early breast milk, provide passive immunity to infants in the form of________________.

cell-mediated immunity

Patients who have functioning T cells but dysfunctional B cells will retain

IgG

Which class of antibody is capable of crossing the placenta to give passive immunity to the fetus? Choose one:

IgM

Which class of antibody is the first to be detected in the early stages of an adaptive immune response? Choose one:

A. B lymphocytes B. Macrophages C. Dendritic cells

Which of the following cell types would be considered "professional APCs" (antigen-presenting cells)? Choose one or more: A. B lymphocytes B. Macrophages C. Dendritic cells D. Red blood cells E. T lymphocytes

humoral immunity: The production of plasma cells; Activation of B-cells; The production of memory B-cells; Killing most types of bacteria cell-mediated immunity: The activation of killer T-cells; Cytokine activation of machrophages; Killing virally infected cells

Which of the processes below are parts of the humoral immune response, and which are parts of the cell-mediated immune response? Indicate your answer by dragging the labels to the appropriate bins. The production of plasma cells Activation of B-cells The production of memory B-cells Killing most types of bacteria Cell-Mediated Immunity The activation of killer T-cells Cytokine activation of machrophages Killing virally infected cells

Viruses mutate quickly, so the next virus will have slightly different epitopes and the same antibodies will not be able to bind to them.

Why will these antibodies NOT protect us the next time we get a cold (are exposed to a rhinovirus)? (diagram in notes)

3-4 days

How long does it take for an adaptive immune response to develop when a new pathogen enters the body?

The lymph nodes

Once an antigen-presenting cell (APC) has processed antigens for the lymphocytes, it must travel through the body to find the B lymphocytes and T lymphocytes. Where do APCs travel to find waiting lymphocytes?

The antibodies cover the parts of the virus that allow it to bind to cells, so it can no longer get into a host cell and replicate.

The virus particle is coated in antibodies, but underneath those antibodies is still a viable pathogen. Why do we NOT have to worry about this virus infecting our cells anymore? (diagram in notes)

A. Antigen B. Dendritic cell C. Lymph node D. MHC class II receptor E. Helper T lymphocyte F. T-cell receptor

This diagram shows the activation of a helper T cell. Identify the major players in this interaction. (diagram in notes)

Humoral and cellular immunity are intertwined, each relying on some facet of the other to work properly.

What is the relationship between the humoral and cellular branches of immunity?

IgE

Which antibody class is most commonly associated with allergies? Choose one:

IgG

Which antibody class is the most abundant in the serum?