The vitamin involved most in coagulation is

The vitamin involved most in coagulation is:
A.  Vitamin A
B.  Folicin
C.  Niacin
D.  Vitamin K
E.  Tocopherol


The high-energy compound that interacts most directly with the contractile proteins of muscle is
A.  ATP.
B.  GTP.
C.  UDP-glucose.
D.  creatine phosphate.
E.  phosphoenolpyruvate.


Upon stimulation of a muscle to contract, which one of these events occurs following calcium ion binding to troponin?
A.  Cross bridge formation
B.  Depolarization of the sarcolemma
C.  Depolarization of the T-tubules
D.  Release of acetylcholine at the neuromuscular junction
E.  calcium ion release from the sarcoplasmic reticulum