For a neuron with an initial membrane potential at -70 mV, an increase in the movement of potassium ions out of that neuron's cytoplasm would result in the _____
A) depolarization of the neuron
B) hyperpolarization of the neuron
C) replacement of potassium ions with sodium ions
D) replacement of potassium ions with calcium ions
B
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A hypothesis
1.is a tentative explanation for an observation that can be tested by further investigation. 2.is never tested by an experiment. 3.is never used by field biologists. 4.is the same as a theory.
The immunoglobulin/s found on the surface of B cells is/are
A. IgD and IgE. B. IgD only. C. IgM only. D. IgG only. E. IgM and IgD.
A beta-pleated sheet is an example of a protein’s tertiary structure
__________________Indicate whether the statement is true or false.
What is considered the most serious manifestation of immediate hypersensitivity?
A) Anaphylaxis B) Allergic reaction C) Syncopal episode D) Immune response