Question

1. ______ _____ is the messenger that regulates blood pressure by causing arterial smooth muscle relaxation.
2. ______ nucleotides are common second messengers in animal cells.
3. Cells can regulate precisely where signaling occurs within the cell (e.g., in the yeast mating pathway) by association of the signal pathway proteins with a ________ ________.
4. In smooth muscle cells, acetylcholine stimulates activation of the enzyme ____________ __, which cleaves ____ to form the second messengers ___ and ___.

Answer 1

1.______ NO(nitric oxide) _____ is the messenger that regulates blood pressure by causing arterial smooth muscle relaxation.

2. Cyclic (cAMP, cGMP) nucleotides are common second messengers in animal cells.

3.Cells can regulate precisely where signaling occurs within the cell (e.g., in the yeast mating pathway) by association of the signal pathway proteins with a _____MAPK___ ________.

4.In smooth muscle cells, Acetylcholine stimulates activation of the enzyme Phospholipase-C, which cleaves PIP2( Phosphatidylinositol 4,5-bisphosphate) to form Second Messengers: IP3(Inositol trisphosphate ),  DAG (Diacylgylcerol)