________ are a type of sensory receptor that consists simply of the tips of dendrites
Fill in the blank(s) with correct word
Free nerve endings
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In opsonization with IgG, why would it be important that IgG react with the antigen BEFORE a phagocytic cell recognizes the antibody molecule?
A. If the IgG is bound to the phagocyte BEFORE opsonization, it would most likely be ingested by the phagocyte before it could bind to a pathogen (it would be "naked," so to speak). B. Binding of IgG by phagocytes would block the antigen binding sites on the IgG molecules, preventing them from binding to the microbes. C. Binding of IgG by phagocytes changes their conformation-and by changing their protein conformation, their antigen binding sites are changed and they can no longer recognize their specific antigenic epitopes. D. Binding of antibody by phagocytes results in immediate release of protein-destroying enzymes to the outside of the cell. Since antibodies are proteins, they would be destroyed by these enzymes (and would then be unable to bind to their specific antigenic epitopes).
anion or cation? calcium
What will be an ideal response?
Following an F+ × F? mating, the donor is ________ and the recipient is ________.
A. F+; F? B. F+; F+ C. F?; F+ D. F?; F?
The majority of a eukaryotic cell's life is spent in an "in-between-division" stage referred to as:
A) prophase. B) interphase. C) DNA synthesis phase. D) dormant phase. E) mitotic phase.