The following will increase the rate of diffusion except which factor?
A) increased temperature
B) increased concentration
C) increased molecular weight
D) shorter distances
Ans: C) increased molecular weight
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The process by which antibodies bind to antigenic sites on viruses or toxins, rendering them incapable of binding to other cells, is called
A) opsonization. B) activation. C) agglutination. D) precipitation. E) neutralization.
While unloading the trunk of her car, Amy pulls a muscle. As a result, she has difficulty moving her arm. The attending physician in the emergency room tells her that she injured her latissimus dorsi muscle. Knowing that the latissimus dorsi was a back muscle, Amy doesn't understand what the muscle has to do with her injured arm. Explain the involvement of the muscle in Amy's injury.
What will be an ideal response?
Organic acids, or metabolic acids, are generated during the normal process of
A) metabolism. B) metabolic generation of water. C) exhalation. D) reabsorption. E) active secretion.
The one-way propagation of action potentials down an axon is primarily due to
A) sodium ion depletion. B) potassium ion depletion. C) the absolute refractory period. D) ATP loss.