Exam 3 Concepts SAT

Exam 3 Concepts SAT - 15.1 What Are Signals, and How Do...

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15.1 What Are Signals, and How Do Cells Respond to Them? A paracrine signal differs from an endocrine signal in that: A. A paracrine signal acts on nearby cells while an endocrine signal acts only on the cell that released the signal. B. An endocrine signal is blood borne and therefore acts on distant targets while a paracrine signal acts only on the cell that released the signal. C. An endocrine signal is lipophilic while a paracrine signal is lipophobic. D. A paracrine signal acts on neighboring cells while an endocrine signal affects more distant targets since it travels through the vasculature. 15.2 How Do Signal Receptors Initiate a Cellular Response? If a hormone binds to a G=Protein Coupled Receptor located on the cytoplasmic membrane, then that hormone is most likely A. Lipophilic B. Hydrophilic C. Lipophobic D. Both “A” and “C” are correct answers. 15.3 How Is a Response to a Signal Transduced through the Cell? A kinase cascade would require which of the following anions? A. Cl
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Exam 3 Concepts SAT - 15.1 What Are Signals, and How Do...

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