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AP BIO Chapter 6 Flashcards

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5008367186Plasma MembraneDouble membrane, outer rim of cell, Lets only select things in and out of cell0
5008367187Cell WallOnly in plants-CELLULOSE, surrounds plasma membrane, protects and gives cells shape1
5008367188ChromatinTangles of long strands of DNA, nucleus, packed into chromosomes when cell reproduces2
5008367189NucleolusA semi-large region, nucleus, produces ribosomes that are involved in protein synthesis3
5008367190RibosomesTiny cell particles (not membrane bound), cytoplasm, synthesis proteins4
5008367191CytoplasmClear fluid, lies outside nucleus/ surrounds organelles, site of protein assembly5
5008367192Endoplasmic reticulumFolded membrane (one rough[ribomsomes] one smooth), cytoplasm, network of interconnected systems6
5008367193Golgi ApparatusClosely stacked, cytoplasm, delivers proteins to plasma membrane7
5008367194VacuoleSac of fluid, cytoplasm, stores food-enzymes and other materials needed by cell8
5008367195lysosomessurrounded by membrane, cytoplasm, digests excess or worn out cell parts9
5008367196mitochondriahighly folded inner membrane, cytoplasm, food molecules are broken down to create energy10
5008367197chloroplastsdisc shaped, plant cells, transform light energy to CE11
5008367198Chlorophyllgreen pigment, thylakoid membrane, traps energy from sunlight12
5008367199plastidsdifferent color pigments, plant cells, storage13
5008367200cytoskeletonthin fibrous elements, throughout the cell, supports cell and organelles14
5008367201microtubulesthin,hollow cylinders-cytoskeleton, provides protein to to cytoskeleton15
5008367202ciliahair like, plasma membrane, moves fluid over cell surface16
5008367203flagella"whip like" and long, one or two per cell17
5008367204intermediate filamentsfibrous proteins that are (keratin) that are coiled into thicker cables and filaments18
5008376326intercellular junctionsplants-plasmodesmata -channels between cells through adjacent cell walls -allows communication between cells -allows viruses to travel rapidly between cells19
5008376327tight junctions-very tight fusion of the membranes of adjacent cells -seals off areas between the cells -prevents movement of materials around cells20
5008376328demosomes-bundles of filaments which anchor junctions between cells -does not close off the area between adjacent cells -coordination of movement between groups21
5008376329gap junctions-opens channels between cells, similar to plasmodesmata -allows "communication" between cells22
5009225283middle lamellathin layer rich in pectin; glues plant cells together23

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