AP BIOLOGY
1) Examine the image of molecules involved in the signaling pathway:
(image is lin...
Biology, 10.12.2020 21:00 mastershadow2018
AP BIOLOGY
1) Examine the image of molecules involved in the signaling pathway:
(image is linked)
The signaling pathway shows how different molecules act as second messengers to bring about a cellular response. Based on this model, which of the following causes a decrease in cellular response?
a) An increase in phospholipase C activity
b) An influx of Ca2+ into the cytosol
c) Closing of IP3-gated calcium channels
d) Closing of IP3-gated calcium channels
2)Look at the model below representing a signal transduction in a cell:
(this is the second image)
Which of the following would not necessarily stimulate a cellular response?
a) A bonded signal molecule and surface substrate
b) A large concentration of hormones outside of the cell
c) A large concentration of ions inside of the cell
d) An open gate for the specific ions
Answers: 1
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