100459
| Question | Answer |
| Q: Pathologic hyperplasia | A: may occur in response to growth factors. |
| Q: Free radicals may be produced by | A: metabolism of certain drugs. |
| Q: Alcohol (ethanol) | A: is metabolized via the microsomal p-450 oxidase pathway. |
| Q: Aging is associated with | A: increased cross-linking of collagen. |
| Q: What organic compound facilitates transportation across cell membranes by acting as receptors, transport channels for electrolytes, and enzymes to drive active pumps? | A: Proteins |
| Q: What prevents water-soluble molecules from entering cells across the plasma membrane? | A: Phospholipid bilayer |
| Q: Which mode of chemical signaling uses blood to transport communication to cells some distance away? | A: Hormone signaling |
| Q: Which mode of chemical signaling uses local chemical mediators that are quickly taken up, destroyed or immobilized? | A: Paracrine signaling |
| Q: Neurotransmitters affect the postsynaptic membrane by binding to: | A: Receptors |
| Q: How do cells receive communication from the extracellular fluid surrounding them? | A: Chemical messengers such as ligands. |
| Q: When a second message is necessary for extracellular communication to be activated, it is provided by: | A: adenosine monophosphate (AMP). |
| Q: What is the mechanism by which the energy produced from carbohydrates, proteins and lipids is transferred to adenosine triphosphate (ATP)? | A: Oxidative phosphorylation |
| Q: How is passive transport described? | A: It is driven by osmosis, filtration, and diffusion. |
| Q: Active transport occurs across membranes that: | A: have receptors that are capable of binding with the substances to be transported. |
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