Antibodies are:
A) foreign substances to the body
B) formed against one's own cells
C) immunoglobulins
D) antigens
C
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Which plasma proteins are not produced by the liver?
A. Gamma globulins B. Fibrinogen C. Albumin D. Alpha globulins E. Enzymes involved in the clotting process
What cells in the epidermis are responsible for the shades of skin color of the various races?
a. keratinocytes b. Langerhans cells c. Granstein cells d. transient T lymphocytes e. melanocytes
Which of the following events in the chloride shift occurs last?
A. Carbon dioxide diffuses into a red blood cell. B. Carbonic acid dissociates to form bicarbonate and hydrogen ions. C. Bicarbonate ions diffuse into the plasma. D. CO2 and H2O ? H2CO3 E. Carbonic acid dissociates to form water and carbon dioxide.
All of the following provide chemoreceptor input to the respiratory centers of the medulla oblongata except the
A) olfactory epithelium. B) medullary chemoreceptors. C) aortic body. D) carotid body. E) central chemoreceptors.