Physiology 2130 Lecture Notes - Lecture 3: Endoplasmic Reticulum, Mitochondrion, Nuclear Membrane
25 Jan 2020
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Document Summary
Golgi apparatus: golgi apparatus is responsible for packaging proteins from the rough endoplasmic reticulum into membrane-bound vesicles. Two types of vesicles are produced by the golgi bodies: secretory vesicles, which transport proteins to the cell membrane for release into the extra-cellular environment, and storage vesicles, such as lysosome, whose contents are stored within the cell. Secretory vesicle: produced by the golgi apparatus and are used to transport various types of proteins out of the cell for use in other parts of the body. The process by which the cell releases proteins through the membrane into the extracellular environment is, not surprisingly, called secretion. Free ribosomes: ribosomes are dense granules of rna and protein. They are responsible for manufacturing proteins from amino acids under the control of the cell"s. There are two types of ribosomes in the cell: fixed ribosomes, which are attached to the endoplasmic reticulum; and free ribosomes, which float in the cytoplasm.
