1. Insulin
a) can be ingested for treatment of diabetes mellitus
b) has a half-life of approximately two hours
c) both a and b
d) neither a nor b
2. Insulin is secreted by the pancreatic
a) beta cells
b) alpha cells
c) duct cells
d) none of the above
3. The pancreatic acinar cells secrete
a) insulin
b) glucagon
c) somatostatin
d) none of the above
4. Osteoporosis
a) is more commonly associated with old age
b) is associated with lower osteoblast activity
c) both a and b
d) neither a nor b