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AP Biology: Chapter 6 Flashcards

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

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5091652998cell diagram0
5091652999organellesmembrane-enclosed compartments1
5091653001cytosola jellylike substance where organelles and other components are found2
5091653002eukaryotic cellcell in which most DNA is found in the nucleus3
5091653003prokaryotic cellcell in which most DNA is found in a non-membrane-enclosed nucleoid4
5091653004nucleoida non-membrane-enclosed region of the cell where prokaryotic DNA is found5
5091653005cytoplasmthe interior of a prokaryotic cell6
5091653006plasma membranea selective barrier that allows sufficient passage of oxygen, nutrients, and wastes to service the entire cell7
5091653007nucleuschromosome-containing part of a eukaryotic cell8
5091653008nuclear envelopeencloses the nucleus to separate its contents from the cytoplasm9
5091653009nuclear laminaa netlike array of protein filaments that maintains the shape of the nucleus by mechanically supporting the nuclear envelope, lines the nuclear side of the nuclear envelope10
5091653010chromosomesstructures that carry the genetic information11
5091653011chromatinmaterial that makes up chromosomes, a complex of proteins and DNA12
5091653012nucleoluslocated in the nucleus, makes, synthesizes, and partially assembles ribosomes13
5091653013ribosomesmade of ribosomal RNA and protein, synthesize proteins14
5091653014endomembrane systemcollection of membranes related through direct physical contact or by the transfer of membranous vesicles15
5091653015endoplasmic reticulumaccounts for more than half of total membrane in many eukaryotic cells, continuous with the nuclear envelope16
5091653016smooth ERportion of the endoplasmic reticulum free of ribosomes, synthesize lipids, common in liver cells17
5091653017rough ERportion of the endoplasmic reticulum studded with ribosomes, produce membrane and secretory proteins18
5091653018glycoproteinsproteins with covalently-bonded carbohydrates19
5091653019transport vesiclesvesicles in transit from one part of the cell to another20
5091653020Golgi apparatusstack of membranes that modifies, sorts, and packages proteins from the endoplasmic reticulum21
5091653021lysosomemembranous sac of hydrolytic enzymes, which it uses to digest macromolecules22
5091653022phagocytosisthe lysosome digests food23
5091653023autophagythe lysosomes break down damaged organelles24
5091653024food vacuolesformed by phagocytosis, pinches off from plasma membrane and encloses a food particle25
5091653025contractile vacuolespump excess water out of the cell to maintain a suitable concentration of ions and molecules in the cell26
5091653026central vacuolecommon in mature plant cells, diverse roles in reproduction, growth, and development27
5091653027mitochondriachemically convert energy through cellular respiration28
5091653028chloroplastsconvert light energy to chemical energy (photosynthesis)29
5091653029cristaeinfoldings in the inner membrane of the mitochondria30
5091653030mitochondrial matrixcompartment of the mitochondrion, enclosed by the inner membrane, contains enzymes and substrates for the citric acid cycle31
5091653031plastidsclosely related plant organelles32
5091653032thylakoidsmembraneous system in the chloroplast, flattened and interconnected sacs33
5091653033granumstacks of thylakoids34
5091653034stromafluid outside the thylakoids, contains chloroplast DNA, ribosomes, and enzymes35
5091653035cytoskeletona network of fibers bracing the cytoplasm36
5091653036motor proteinsspecialized proteins, modify shape and move cells or structures within cells, required to interact with cytoskeleton for cell motility37
5091653037microtubuleshollow rods of protein, support the cell and moves organelles within the cell38
5091653038centrosomea region located near the nucleus where microtubules grow from39
5091653039centriolestwo exist in the centrosome, each composed of nine sets of triplet microtubules arranged in the ring40
5091653040flagellaa long tail-like feature found in one-celled organisms to aid in movement, utilizes a snakelike motion41
5091653041ciliaa short hair-like structure made of microtubules that enable movement of cells or movement of materials outside a cell, utilizes a back-and-forth motion42
5091653042basal bodyanchors cilium or flagellum in the cell43
5091653043dyneinsmotor proteins responsible for bending movements of cilium and flagellum, composed of several polypeptides44
5091653044microfilamentsseem present in all eukaryotic cells, located in the cytoplasm, acts (sometimes with myosin) to cause cell contraction45
5091653045actina globular protein that makes up microfilaments46
5091653046cortexthe outer cytoplasmic layer of a cell47
5091653047pseudopodiacellular extensions that enable a cell to crawl along a surface48
5091653048cytoplasmic streamingthe circular flow of cytoplasm within cells49
5091653049intermediate filamentsdiverse class of cytoskeletal elements that bear tension like microfilaments50
5091653050cell wallextracellular structure specific to plant cells, protects the cell, maintains its shape, and prevents excessive water uptake51
5091653051primary cell walla relatively thin and flexible layer in plant cells, first secreted by a young cell52
5091653052middle lamellaa thin layer between primary walls of adjacent cells that glues them together with pectin53
5091653053secondary cell walla strong and durable matrix in plant cells, often deposited in several laminated layers for cell protection and support54
5091653054extracellular matrixanimal tissue cells are embedded, consists of protein and polysaccharides55
5091653055collagenmost common glycoprotein in the ECM, forms strong fibers outside the cells56
5091653056proteoglycansconsists of a small core protein with many carbohydrate chains covalently attached,57
5091653057fibronectinattach the ECM to integrins embedded in the plasma membrane58
5091653058integrinsmembrane proteins with two subunits, bind to the ECM on one side and to associated proteins attached to microfilaments on the other59
5091653059plasmodesmatachannels that perforate cell walls, allow for connections between cells in plants60
5091653060tight junctionsintercellular junction in animal tissues where plasma membranes of neighboring cells are very tightly pressed against each other, bound by specific proteins61
5091653061desmosomesintercellular junction in animal tissues that function like rivets, fastening cells together into strong sheets62
5091653062gap junctionsintercellular junction in animal tissues that provide cytoplasmic channels from one cell to an adjacent cell, similar to plasmodesmata in plants63

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