Don’t copy from Google Transcribed Image Text: For cardiac myocytes, which of these downstream activities WOULD NOT occur when norepinephrine binds to the B, receptors of that cell? Answers A

Don’t copy from Google Transcribed Image Text: For cardiac myocytes, which of these downstream activities WOULD NOT occur when norepinephrine binds to the B, receptors of that cell?
Answers A – D
A PK-A phosphorylates the L-type Ca” channels increasing Ca” influx into the cell.
B
More Ca” is released into the cytoplasm from the sarcoplasmic reticulum because of calcium induced calcium release.
PK-A phosphorylates phospholamban which then inhibits the reuptake of Ca” back into the sarcoplasmic reticulum.
D.
PK-A phosphorylates the regulating proteins on troponin so that troponin will release Ca” quicker.