biology

3. an intracellular second messenger to a wide variety of hormones and neurotransmitters
5. a molecule that binds to another larger metallic molecule
8. an enzyme that transfers a phosphate group from ATP to tyrosine
10. mediate the release of Ca2+ from intracellular stores
11. catalyzes the conversion of ATP to cAMP
14. catalyzes phosphorylation of select tyrosine residues in target proteins, using ATP.
15. small hydrophobic recepting proteins mostly found in the cytoplasm
16. an enzyme that removes a phosphate group from a protein
17. usually multimeric proteins located in the plasma membrane
18. largest and most diverse group of membrane receptors in eukaryotes

1. chemical signals that act over short distances, reaching their target cells by diffusion.
2. is carried out when the typical signal output level of a sensor is considered to be too low
4. enzymes that regulate the biological activity of proteins by phosphorylation of specific amino acids with ATP as the source of phosphate
6. used to convey ligands into changes of biological activity of target cells
7. low molecular weight, acidic, calcium binding protein
9. chemicals that coordinate different functions in your body by carrying messages through your blood to your organs, skin, muscles and other tissues
12. Calcium channels are the structural components of cardiac cells that provide a mechanism to modulate the force of contraction
13. Second messengers are small molecules and ions that relay signals received by cell-surface receptors to effector proteins