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AP Biology Cell and Organelles Flashcards

Vocabulary words from the AP Edition of Campbell Biology, Chapter 6.

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14924053455organellesmembrane-enclosed structures within a eukaryotic cell0
14924053456cytosola jellylike substance where organelles and other components are found1
14924053457eukaryotic cellCell with a nucleus and membrane bound organelles2
14924053458prokaryotic cellCell with no nucleus nor membrane bound organelles3
14924053459nucleoid regiona non-membrane-enclosed region of the cell where prokaryotic DNA is found4
14924053460cytoplasmthe region in a cell between the cell membrane and nucleus; it contains the cell structures and oganelles5
14924053461plasma membraneThe selective barrier that surrounds a cell; it controls what enters and leaves the cell6
14924053462nucleuschromosome-containing part of a eukaryotic cell7
14924053463nuclear envelopeencloses the nucleus to separate its contents from the cytoplasm8
14924053465chromosomestightly coiled structures that carry the genetic information (can be seen during nuclear division)9
14924053466chromatinloosly coiled genetic material that makes up chromosomes, a complex of proteins and DNA10
14924053467nucleoluslocated in the nucleus, makes, synthesizes, and partially assembles ribosomes11
14924053468ribosomesmade of ribosomal RNA and protein, synthesize proteins12
14924053469endomembrane systemmembranes that divide the cell into organelles such as the nuclear membrane, the endoplasmic reticulum, the Golgi apparatus, lysosomes, vesicles, and the cell membrane.13
14924053470endoplasmic reticulum (ER)accounts for more than half of total membrane in many eukaryotic cells, continuous with the nuclear envelope14
14924053471smooth ERportion of the endoplasmic reticulum free of ribosomes, synthesize lipids, detoxifies the cell, and regulates calcium levels15
14924053472rough ERportion of the endoplasmic reticulum studded with ribosomes, produce and transport membrane and secretory proteins16
14924053473glycoproteinsproteins with covalently-bonded carbohydrates that play a role in cell to cell interaction17
14924053474transport vesiclesvesicles in transit from one part of the cell to another18
14924053475Golgi apparatusstack of membranes that modifies, sorts, and packages proteins from the endoplasmic reticulum19
14924053476lysosomemembranous sac of hydrolytic enzymes, which the cell uses to digest unwanted materials20
14924053477phagocytosisthe process by which a cell engulfs a solid particle21
14924053481central vacuolethe largest organelle in a plant cell. It is surrounded by the tonoplast and functions to hold materials and wastes. It also functions to maintain the proper pressure within plant cells22
14924053482mitochondriachemically convert chemical (food) energy into usable ATP energy through cellular respiration23
14924053483chloroplastscontain chlorophyll which help absorb solar energy in order to convert carbon dioxide and water into sugars during photosynthesis24
14924053484cristaeinfoldings in the inner membrane of the mitochondria25
14924053485mitochondrial matrixcompartment of the mitochondrion, enclosed by the inner membrane, contains enzymes and substrates for the citric acid cycle26
14924053487thylakoidsflattened and interconnected sacs found in chloroplasts. The light dependent stage of photosynthesis occurs on the membranes of these sacs27
14924053488granumstacks of thylakoids28
14924053489stromafluid outside the thylakoids, contains chloroplast DNA, ribosomes, and enzymes. The light independent stage of photosynthesis occurs in this area29
14924053490cytoskeletona network of fibers bracing the cytoplasm30
14924053491microtubuleshollow rods of protein, support the cell and moves organelles within the cell31
14924053492centrosomea region located near the nucleus where micro-tubules grow from; important in cell division32
14924053493centriolescylindrical organelle near the nucleus in animal cells, occurring in pairs and involved in the development of spindle fibers in cell division33
14924053494flagellaa long tail-like structure that aids in cell movement34
14924053495ciliaa short hair-like structures that enable movement of cells or movement of materials outside a cell, utilizes a back-and-forth motion35
14924053496microfilamentsthe thinnest part of the cytoskeleton, are used to give shape to the cell and support all of its internal parts36
14924053497actina globular protein that makes up microfilaments37
14924053498pseudopodiacellular extensions that enable a cell to crawl along a surface38
14924053501cell wallextracellular structure specific to plant cells, protects the cell, maintains its shape, and prevents excessive water uptake39
14924053502primary cell walla relatively thin and flexible layer in plant cells, first secreted by a young cell40
14924053504secondary cell walla strong and durable matrix in plant cells, often deposited in several laminated layers for cell protection and support41
14924053505extracellular matrixwhere animal tissue cells are embedded, consists of protein and polysaccharides42
14924053506collagenmost common glycoprotein in the ECM, forms strong fibers outside the cells43
14924053507plasmodesmatachannels that perforate cell walls, allow for connections between cells in plants44
14924053508tight junctionsintercellular junction in animal tissues where plasma membranes of neighboring cells are very tightly pressed against each other, bound by specific proteins45
14924053509desmosomesintercellular junction in animal tissues that function like rivets, fastening cells together into strong sheets46
14924053510gap junctionsintercellular junction in animal tissues that provide cytoplasmic channels from one cell to an adjacent cell, similar to plasmodesmata in plants47

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