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) depolarize the lymphocyte.
D) bind to the DNA of the lymphocyte.
E) bind to specific receptors on the lymphocyte membrane.
E) bind to specific receptors on the lymphocyte membrane.
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The _________________________ is listening to the heart and lungs
Fill in the blank(s) with correct word
The function of lysozyme in saliva is to __________.
a) perforate bacterial plasma membranes b) keep oral mucosa moist c) bind specific antigens d) digest polysaccharides
The rough endoplasmic reticulum is covered with
A. Golgi apparatus. B. lysosomes. C. ribosomes. D. nucleoli.
Which of the following is NOT considered part of the lower respiratory system?
a. bronchi b. pharynx c. trachea d. larynx