What will be the immediate action of an allergen when it enters the body for a second time?
A. Binding of allergen to adjacent IgE binding sites on mast cells and basophils
B. Binding of IgE by the Fc region to mast cells and basophils
C. Prostaglandins cause vasodilation and increased vascular permeability
D. Degranulation
E. Histamine acts on smooth muscle
Answer: A
You might also like to view...
They might be conducting such an experiment to _____
A) find the location of a particular gene in the human genome B) prepare to isolate the chromosome on which a particular gene of interest C) find which of the students has which alleles D) measure the expression of one or more genes in their genomes E) determine if any of them carries an extra sex chromosome
What is most closely associated with membrane-attack complexes (MACs)?
a. complement proteins b. helper T cells c. B cells d. histamines e. cytokines
We feel uncomfortably warm on a muggy day because water molecules are
What will be an ideal response?
What will most likely be the result if all of the mitochondria are removed from a plant cell?
a) it will be unable to carry out respiration b) it will break down the ribosomes in the cell c) it will lose water through osmosis d) it will be unable to photosynthesize