An IRB/IEC should have: 1  At least five members. 2  Members with varying backgrounds. 3  At least one member must represent a non-scientific area (a lay member) 4  At least one member must not be affiliated with the institution or the trial site (an independent member)
Vesicles and Vacuoles Vesicles and vacuoles are membrane-bound sacs that function in storage and transport. Vacuoles are somewhat larger than vesicles, and the membrane of a vacuole does not fuse with the membranes of other cellular components. Vesicles can fuse with other membranes within the cell system (Figure 1).
Vacuoles are membrane-bound sacs within the cytoplasm of a cell that function in several different ways.ometimes these functions are carried out by different vacuoles in the same cell, one serving as a compartment for breaking down materials (similar to the lysosomes found in animal cells), and another storing nutrients, waste products, or other substances.