Particulate matter is nonspecifically taken into cells by the process of ________.
exocytosis
phagocytosis
pinocytosis
receptor-mediated endocytosis
pinocytosis
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Irving, who is 78 years old, takes human growth hormone supplements to regain the strength of his youth. He may be disappointed because the hormone has been shown only to
A. increase his risk of cancer. B. increase the red blood cell supply. C. decrease fat and increase muscle mass, but not improve strength. D. make him urinate more often.
Which of the following structures is labeled C in the diagram?
a) axon terminal b) trigger zone c) cell body d) peripheral process e) dendrites
The 68-year-old patient was admitted to the hospital medical floor with a diagnosis of chronic bronchitis. His wife asks the nurse why his skin looks blue. How would you explain cyanosis to the patient and his wife?
What will be an ideal response
How do most polar molecules move through a cell membrane? Explain why water, a polar molecule, is able to cross the nonpolar portion of a cell membrane.
What will be an ideal response?