Please complete the following multiple choice

1) Which statement is TRUE for the endocrine system but FALSE for the nervous system?

a) It can control the degree of smooth muscle contraction
b) Amino acid derivatives are commonly used as signaling molecules
c) It only has short-term effects on regulating homeostasis
d) Some signaling molecules bind to membrane proteins
e) Its signaling molecules can travel long distances in the blood

2) High amino acid concentration in the blood will result in
a) an increase in protein synthesis
b) stimulation of alpha cells to secrete glucagon
c) a decrease in protein degradation
d) a decrease in lipolysis
e) all are correct

3) Normally, which of the following cannot be a fate of glucose molecule?
a) digested into monosaccharides in the small intestine brush border
b) used for the synthesis of glycogen in the liver
c) used for energy in oxidative phosphorylation
d) reabsorbed in the kidney

4) Insulin is required for:
a) glucose uptake in muscle via insertion of GLUT4 transporters
b) glucose uptake in liver via insertion of GLUT2 transporters
c) glucose movement trough the blood brain barrier via insertion of GLUT1 transporters
d) glucose uptake in neurons via insertion of GLUT3 transporters