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).
For this reason, vesicles can digest cellular machinery and recycle cellular materials. To transport materials into or out of the cell, vesicles fuse with the cellâs plasma membrane and release or uptake contents from outside of the cell. In total, there are four main types of vesicles. Vacuoles are vesicles that contain mostly water and are found in plant cells. They transport water in and out of the cell.