3.1.4
Which of the following would most likely result if cAMP molecules failed to activate kinase A molecules in a signal transduction pathway?
No phosphorylation would occur.
Which of the following best describes the function of ATP as related to the formation of the second messenger in liver cells.
The second messenger is made from ATP
Which of the following molecules is the most likely second messenger of the epinephrine signal transduction pathway in liver cells?
cAMP
Which of the following best describes the end result of an epinephrine signal transduction pathway in a liver cell?
Glycogen is broken down and ATP is released.
Which of the following is the most likely location for epinephrine synthesis in the body?
In the adrenal glands.
Which of the following is the most likely location for second messengers in a signal transduction pathway?
In the cytosol
Which of the following best describes the function of a signal transduction pathway in your body?
It allows a cell to receive and respond to an external signal.
Which of the following best explains how the parasite Vibrio cholera interferes with the signal transduction pathway in intestinal cells.
It causes G protein to remain activated.
What you experience a sudden fright, epinephrine is released into your bloodstream. It then affects a variety of different cell types. Which of the following best explains this mechanism of action?
It is not cell specific.
Which of the following best describes how a beta blocker interferes with a signal transduction pathway to lower blood pressure?
It prevents binding of epinephrine to a membrane receptor.