In precipitation tests, the antigen
A. -antibody complex settles to the bottom of the tube.
B. is a whole cell.
C. is a soluble molecule.
D. is an insoluble molecule.
Answer: C
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The molecule shown in the accompanying figure is _____
A) a hexose B) a pentose C) a phosphate D) fructose E) maltose
The rate of killing by an antimicrobial agent may slow when the microbial population has been greatly reduced because the remaining population may have a high proportion of resistant organisms.
Answer the following statement true (T) or false (F)
Which of the following statements accurately describes the following reaction?
a. enzymatic digestion of carbohydrates in the mouth by enzymes secreted by the salivary glands
b. enzymatic digestion of proteins in the stomach by enzymes secreted by the pancreas
c. enzymatic digestion of lipids in the stomach by enzymes secreted by the liver
d. enzymatic digestion of proteins in the small intestine by enzymes secreted by the pancreas
e. enzymatic digestion of lipids in the small intestine by enzymes secreted by the pancreas
Which of the following is diagnostic for systemic lupus erythematosus?
A.) Anti-Sm antibody B.) Anti-myelin basic protein antibody C.) Anti-insulin antibody D.) Anti-EB antibody