In anemia, 2,3-DPG is ________ and oxygen affinity is ________.
Why does the upper third of the esophagus have skeletal muscle in its wall?
A.so you do not choke
B.the first phase of swallowing is voluntary
C.so that peristalsis can occur
D.the first phase of swallowing is involuntary
What is the action of the signaling molecules activated by the insulin-tyrosine kinase
second messenger system?
A. insertion of glucose carrier proteins into the plasma membrane
B. hydrolysis of glycogen and secretion of glucose
C. transport of insulin into the cell
D. All apply.