In order for a lymphocyte to respond to an antigen, the antigen ...

[FButt]

In order for a lymphocyte to respond to an antigen, the antigen must
 A) be phagocytized by the lymphocyte.
  B) enter the cytoplasm of the lymphocyte.
  C) bind to the DNA of the lymphocyte.
  D) bind to specific receptors on the lymphocyte surface.
  E) depolarize the lymphocyte.

Question 2

Upper motor neurons of the corticospinal tract synapse with neurons in
 A) autonomic ganglia.
  B) the anterior gray horns of the spinal cord.
  C) the spinothalamic tract.
  D) the lateral gray horns of the spinal cord.
  E) the dorsal root ganglia.

[zogaridan]

Answer to Question 1

D

Answer to Question 2

B

[FButt]

TYSM

[patma1981]

Thanks for the timely response, appreciate it