01:119:115 Lecture Notes - Lecture 6: Golgi Apparatus, Vacuole, Lysosome
24 Sep 2018
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Document Summary
Sorts and packages materials into transport vesicles. Shipping product out of golgi using vesicles. Vacuoles: diverse maintenance compartments structure: large vesicles derived from the er and the golgi apparatus functions: variety of functions. Contractile vacuoles, found in many freshwater protists, pump excess water out of cells. Central vacuoles: found in many mature plant cells, hold organic compounds and water. Sacs of powerful hydrolytic or digestive enzymes produced in rough er: primary lysosome. Processed in golgi > bud off: secondary lysosome. When primary lysosome fuses with vesicle containing ingested material. Break down complex molecules- make fuel, degrade foreign molecules. Structure of cellular membranes important features: phospholipids, uid mosaic model, proteins, carbohydrates. Phospholipids main component of membranes amphipathic = hydrophobic tails + hydrophilic head hydrophobic interactions: form bilayers. Fluid mosaic model membrane= uid structure + mosaic of various proteins > must be uid to work properly ~ like salad oil.
