If epinephrine increases glycogen metabolism in muscle cells, it would have the same function in brain cells.

Question

Answer the following statement true (T) or false (F)

Answer 1

False

Clarify Question


• What is the key concept addressed by the question?
     o The question asks about the response of muscle and brain to epinephrine.
• What type of thinking is required?
     o You are being asked to apply your knowledge about the response of muscle and brain to epinephrine.


Gather Content


• What do you know about the response of muscle and brain to epinephrine? What other information is related to the question?
     o The presence of epinephrine in skeletal muscle cells leads to the activation of glycogen phosphorylase, an enzyme involved in glycogen breakdown. However, this enzyme is not expressed in all cells of the body. Glycogen breakdown is only stimulated by epinephrine if glycogen phosphorylase is expressed in that cell.


Choose Answer


• Given what you now know, what information is most likely to produce the correct answer?
     o Brain does not have glycogen phosphorylase, so it will not respond in the same way to epinephrine as muscle will. Cells do not all have receptors to the same hormones and even if they have a receptor, they may not respond in the same way to a hormone binding to the receptor.


Reflect on Process


• Did your problem-solving process lead you to the correct answer? If not, where did the process break down or lead you astray? How can you revise your approach to produce a more desirable result?
     o This question asked you to apply your knowledge about the response of muscle and brain to epinephrine.. If you got the correct answer, great job! If you got an incorrect answer, where did the process break down? Did you think that all cells have receptors to all hormones? Did you think that different cells always have the same response to a hormone binding to its receptor?