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Pathologic hyperplasia
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Free radicals may be produced by
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Alcohol (ethanol)
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Aging is associated with
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What organic compound facilitates transportation across cell membranes by acting as receptors, transport channels for electrolytes, and enzymes to drive active pumps?
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What prevents water-soluble molecules from entering cells across the plasma membrane?
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Which mode of chemical signaling uses blood to transport communication to cells some distance away?
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Which mode of chemical signaling uses local chemical mediators that are quickly taken up, destroyed or immobilized?
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Neurotransmitters affect the postsynaptic membrane by binding to:
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How do cells receive communication from the extracellular fluid surrounding them?
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When a second message is necessary for extracellular communication to be activated, it is provided by:
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What is the mechanism by which the energy produced from carbohydrates, proteins and lipids is transferred to adenosine triphosphate (ATP)?
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How is passive transport described?
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Active transport occurs across membranes that: