Physiology 2130 Lecture Notes - Lecture 3: Lipid Bilayer, Electrochemical Gradient, Facilitated Diffusion

• School: Western University
• Department: Physiology
• Course: Physiology 2130
• Professor: Christine Bell

Document Summary

Packages proteins from rough er into membrane bound vesicles. Golgi bodies produce two types of vesicles: secretory vesicles (transport proteins to cell membrane for release into extracellular environment) and storage vesicles (e. g. lysosomes, whose contents are stored within the cell: secretory vesicle. Used to transport different proteins out of the cell for use in other parts of the body. Secretion is the process of which the cell releases proteins through the membrane into extracellular environment: free ribosomes. Responsible for manufacturing proteins from amino acids under control from dna. Two types: fixed ribosomes and free ribosomes. Fixed ribosomes are attached to the endoplasmic reticulum. Often form in groups of 10-20 called polyribosomes: lysosome. A type of storage vesicle produced by golgi apparatus. The digestive system of the cell; they contain enzymes to destroy damaged organelles, kill bacteria, and breakdown biomolecules: mitochondrion. Primary cellular mechanism for energy storage and transfer. Number of mitochondria in certain cell depends on the cell"s energy expenditure.