Physiology 2130 Lecture 3: Lecture 3
6 Oct 2016
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Document Summary
Basic overview of cellular organelles: golgi apparatus: packages proteins from the rer into membrane-bound vesicles, secretory vesicles: are released into the extracellular environment. The process of release is known as secretion: storage vesicles: ex. Amount is determined by the energy needs of the particular type of cell. Self-replicating, and will replicate if the cell is often required to produce a lot of energy: endoplasmic reticulum: continuation of the nuclear membrane. Synthesis, storage, and transport of proteins and lipids. Proteins: form channels and pores: associated proteins: structural. Attached to the inside surface of the plasma membrane. Can support and strengthen the membrane, some others anchor organelles to the intracellular side of the membrane: associated proteins: enzymes. Carbohydrates: for cell-cell recognition: form a protective layer called the glycocalyx which plays a role in the immune response and in the recognition of other cells. Receptors for the attachment of chemical hormones and neurotransmitters. Enzymes that help with chemical reactions or breakdown molecules.
