Alpha Cells: 1)constitute 20% to 30% of the Islet Cells

Multiple Choice

Alpha cells:
1) constitute 20% to 30% of the islet cells
2) constitute 60% to 70% of the islet cells
3) produce glucagon
4) produce pro-insulin

A) 1, 3
B) 2, 3
C) 1, 4
D) 2, 4