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).
A: A vesicle is a small membrane-bound sack that stores and transports substances throughout the cell. They can form naturally within the cell to aid in cellular secretion such as exocytosis, endocytosis or phagocytosis or they can be artificially prepared by chemists and biologists.