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33 Cards in this Set
- Front
- Back
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Endoplasmic Reticulum
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synthesis of most lipids; synthesis of proteins for distribution to organelles and plasma membrane.
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Golgi Apparatus
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Modification, sorting, and packaging of proteins and lipids for either secretion or delivery to another organelle.
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Lysosomes
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Intracellular degradation
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Endosomes
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Sorting of endocytosed material
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Peroxisomes
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Oxidation of toxic molecules
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Signal Sequence
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sequence of linked protein reactions, often including phosphorylation and dephosphorylation that carries information within a cell. often amplifying an initial signal.
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GTP hydrolysis
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Powers nuclear transport
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Nuclear Lamina
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Provides support for nuclear envelope and is an attachment for chromatin fibers.
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Lamins
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proteins that constitute intermediate filaments.
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Translocators
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Transport synthesized polypeptides into Mitochondria or Chloroplast.
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Signal recognition particle
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direct ribosome to ER membrane
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Clathrin Molecules
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help shape membranes into vescicles.
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Endosome
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membrane-enclosed compartment of a eukaryotic cell through which endocytosed material passes on its way to lysosomes.
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COP coated vesicles
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From ER to Golgi or vice versa.
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Clathrin Coated Vesicles
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1. Golgi to lysosome.
2. Plasma membrane to endosomes |
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Docking to fusing
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requires v-snares / t-snares.
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Dolichol Phosphate
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lipid carrier facing cytosol.
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Chaperones
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prevent misfolded or partially assembled proteins from leaving the ER
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Entry and Exit from Golgi appartus
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Entry - Cis
Exit - Trans |
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Cis Golgi Network
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Sorting station that distinguishes proteins to be sent back to the ER or to the next golgi station.
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Trans Golgi Network
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Proteins are segregated into vesicles destined to either the plasma membrane or various intracellular destinations.
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Regulated Exocytosis
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Membrane fusion regulated by extracellular signal.
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Exocytosis
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Final step in secretory pathway. Membrane of secretory vesicle becomes part of the plasma membrane.
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Phagocytosis
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cellular eating
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Pinocytosis
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Cellular drinking
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Early Endosomes
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Peripheral location. sorting stations for material brought in by endocytosis.
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Late Endosomes
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Closer to nucleus. Prelysosomal compartment.
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Lysosome
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Principal sites of intracellular digestion. Develop from endosomes.
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Hypotonic
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Net water gain
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Hypertonic
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Net water loss
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Isotonic
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No net loss or gain
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Stomata Opening
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Guardcells are hypotonic. Water rushes in. Stomata opens.
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Sarcoplasmic Reticulum
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Smooth ER. Stores Calcium
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