The pharmacology instructor is explaining interleukins to the ...

[james]

The pharmacology instructor is explaining interleukins to the class. What would be the best definition of interleukins?
 
  A) They are substances naturally produced and released by human cells that have been invaded by viruses.
  B) They block the inflammatory reaction and decrease initial damage to cells.
  C) They are chemicals used to communicate between leukocytes and stimulate immunity.
  D) They attach to specific receptor sites and respond to very specific situations.

Question 2

What is the purpose of the G1 phase of the cell cycle?
 
  A) Reproduction
  B) Synthesizes substances needed for deoxyribonucleic acid (DNA) formation
  C) Rest
  D) Production of mitotic spindles

[Laurenleakan]

Answer to Question 1

C
Feedback:
Interleukins are chemicals produced by T cells to communicate between leukocytes and stimulate cellular immunity and inhibit tumor growth. Immune suppressants block the inflammatory reaction and decrease initial damage to cells. Interferons are naturally produced and released by human cells that have been invaded by viruses. Monoclonal antibodies attach to specific receptor sites and respond to very specific situations.

Answer to Question 2

B
Feedback:
The G1 phase lasts from the time of stimulation from the resting phase until the formation of DNA. During this period, the cell synthesizes substances needed for DNA formation. Mitotic spindles are produced in the S phase; rest is accomplished in the G0 phase; and reproduction is in the M phase.

[james]

Gracias!

[Viet Thy]

TYSM