| Both ____ and vasopressin are nonapeptide hormones. |
actin |
| The conversion of fibrinogen to fibrin is catalyzed by ____. |
calmodulin |
| A calcium-binding messenger protein is ____. |
collagen |
| Muscle fibers contain ____ and myosin proteins. |
ferritin |
| The most abundant protein in mammals is ____. |
oxytocin |
| The most abundant protein in leaves is the enzyme ____. |
rubisco |
| The main intracellular iron (Fe) storage protein is ____. |
thrombin |
| A blood plasma protein that transports iron (Fe) is ____. |
transferrin |
