Showing posts with label Microbiology Chapter 17. Show all posts
Showing posts with label Microbiology Chapter 17. Show all posts

Microbiology Chapter 17 True and False

1) Apoptosis results in significant leakage of cellular contents.

Answer: FALSE

2) Cytokines are protein-based chemical messengers that allow for communication between cells of the immune system.

Answer: TRUE

3) Only dendritic cells produce interleukins.

Answer: FALSE

4) The production of interferons at an infection site is critical for chemotaxis.

Answer: FALSE

5) Cytokine storms negatively impact human health.

Answer: TRUE

6) The variable region of the antibody is solely responsible the significant diversity of antigen targets.

Answer: FALSE

7) Plasma cells will eventually differentiate into memory cells.

Answer: FALSE

8) Memory cells do not require B cell receptors.

Answer: FALSE

9) The implementation of vaccinations occurred prior to experimental support for the germ theory of disease.

Answer: TRUE

10) When haptens attach to carrier molecules, an epitope forms on hapten which then can be bound to antibody.

Answer: FALSE

Which of the following statements about IL-12 is FALSE?

Which of the following statements about IL-12 is FALSE?



A) It activates macrophages.
B) It inhibits some tumor cells.
C) It activates the TH1 pathway.
D) It causes autoimmune diseases.
E) It causes TH cells to respond to HIV.


Answer: D) It causes autoimmune diseases.

IL-2, produced by TH cells,

IL-2, produced by TH cells,



A) activates macrophages.
B) stimulates TH cell maturation.
C) causes phagocytosis.
D) activates antigen-presenting cells.
E) activates TC cells to CTLs.


Answer: B) stimulates TH cell maturation.