Physiology 2130 Lecture Notes - Lecture 3: Sodium Chloride, Integral Membrane Protein, Pressure Gradient
6 Dec 2016
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Document Summary
Physiology 2130 distance studies module 3 the human cell. Packages proteins from rough endoplasmic reticulum (er) into membrane-bound vesicles. Two types of vesicles produced: secretory vesicle transports proteins into cell membrane for release into extracellular environment in the process called secretion, storage vesicle e. g. lysosome, content are stored within cell. Function synthesize proteins from amino acids. Two types of ribosomes in cell free ribosomes that float in cytoplasm, and fixed ribosomes found on rough er. Free ribosomes form a polyribosome in groups of 10-20. Contains enzymes used to destroy damaged organelles, kill bacteria, and break down other biomolecules. Where most of the atp is generated. Number of mitochondria depends on cell"s energy needs. Can undergo division independent of the cell, e. g. when energy demands are high. Functions synthesis, storage, and transport of proteins and lipids. Two types: rough er covered with ribosomes, site of protein synthesis, smooth er site of lipid and fatty acid synthesis.
