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 vacuole is a cell organelle found in a number of different cell types. Vacuoles are fluid-filled, enclosed structures that are separated from the cytoplasm by a single membrane.They are found mostly in plant cells and fungi. However, some protist, animal cells, and bacteria also contain vacuoles.Vacuoles are responsible for a wide variety of important functions in a cell including nutrient storage, detoxification, and waste exportation. A plant cell vacuole is surrounded by a single membrane called the tonoplast.Vacuoles are formed when vesicles, released by the endoplasmic reticulum and Golgi complex, merge together. Newly developing plant cells typically contain a number of smaller vacuoles.owever, some protist, animal cells, and bacteria also contain vacuoles. Vacuoles are responsible for a wide variety of important functions in a cell including nutrient storage, detoxification, and waste exportation. A plant cell vacuole is surrounded by a single membrane called the tonoplast.