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).
Because it is separated from the cytosol, the inside of the vesicle can be made to be different from the cytosolic environment. For this reason, vesicles are a basic tool used by the cell for organizing cellular substances.Vesicles are involved in metabolism, transport, buoyancy control, and enzyme storage.acuoles are vesicles which contain mostly water. 1  Plant cells have a large central vacuole in the center of the cell that is used for osmotic control and nutrient storage. 2  Contractile vacuoles are found in certain protists, especially those in Phylum Ciliophora.