Cell organelles

Cell organelles - modified and shipped to various locations...

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Function Membrane DNA Nucleus Contains most of the genes in eukaryotic cells. Separates the genome from the cytosol in eukaryotes. Surrounded by a nuclear envelope that is made of a double membrane. Has large nuclear pores Contains the nucleolus which synthesizes ribosomal RNA. yes Mitochondria ATP factory of the cell. Site of cellular respiration. Has an inner and outer membrane which are used to create the H+ gradient required for respiration. Has its own circular DNA Ribosomes Protein synthesis No Proteins are made from mRNA in a process called translation no Endoplasmic Reticulum Smooth ER: no ribosomes Fxn: lipid syntheses, carbohydrate metabolism, storage of Calcium, and detoxification of drugs. Rough ER: contains ribosomes. Site for protein synthesis and folding. Has a single outer membrane. Proteins made from the ER then get transported into the cis side of the Golgi through vesicles. no Golgi Apparatus Sorting and packing. Products from the ER come to the Golgi where they are
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Unformatted text preview: modified and shipped to various locations Has a single outer membrane Products arrive at the cis face and leave at the trans face. no Lysosome Membranous sac of hydrolytic enzymes. Digest and break down foreign objects. Has a single outer membrane Enzymes work best at acidic pH. Phagocytosis Autophagy: process where lysosomes recycles the cells organic material no Peroxisomes Break down toxins through oxidation. Has a single outer membrane Exp: Liver detoxifies alcohol by transferring H from poison to oxygen, forming H 2 O 2 . H 2 O 2 then gets turned into water no Plasma Membrane Functions as a selective barrier. Phospholipid bilayer acts as the barrier and proteins in the membrane provide the selective Has a single outer membrane. Phospholipid bilayer Cells have unsaturated phospholipids in cold areas in order to keep fluid. no permeability. Vacuole Organelle used for storage. Mostly found in plant cells. Has a single outer membrane. no...
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This note was uploaded on 04/07/2008 for the course BILD 1 taught by Professor Boulanger during the Winter '08 term at UCSD.

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Cell organelles - modified and shipped to various locations...

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