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BIOLOGY 12 UNIT B&D Flashcards

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83052415881. separates the outside environment from the inside 2. transport of materials into and out of the cell 3. communicates and interacts with other cells 4. holds cell together 5. holds together groups of cellswhat are the general functions of the plasma membrane?0
8305246056the entire cell as well as various organelleswhat does the plasma membrane surround?1
8305247701a phospholipid bilayer embedded with glycoproteins and glycoplipidsWhat is the fluid-mosaic model?2
8305254488regulate the movement of hydrophilic substancesTransport proteins3
8305256217form pores which transport according to size and chargeChanel proteins4
8305257717have binding sites where specific substances attach in order to be transportedcarrier proteins5
8305260012cause cellular responses when specific molecules attachreceptor proteins6
8305261217act as ID tags on the cell surfacerecognition proteins7
8305263502Passive transport and Active transporthow does stuff get across the cell membrane?8
83052663901. follows concentration gradient 2. does not require energyWhat are a few key facts about passive transport?9
8305272241Diffusion, Osmosis, facilitated transportWhat are the three processes of passive transport?10
83052753351. functions regardless of concentration gradient 2. requires energy and ATPWhat are a few key facts about active transport?11
8305278298active transport, endocytosis, exocytosiswhat are the three processes of active transport?12
83052840451. diffusion is the net movement of molecules 2. diffusion does not move molecules rapidly or over long distances 3. if no other process is involved, diffusion will continue until equilibrium is achievedwhat are three principles of diffusion?13
83052887421. concentration gradient 2. size and shape of molecules 3. temperature 4. concentration 5. chemical propertieswhat is the rate of diffusion dependant on?14
8305368785diffusion of water from high to low concentration across a membrane through a poreWhat is osmosis?15
8305371572osmotic pressurewhat is the force causing osmosis called?16
8305373227the force counterbalancing osmotic pressure created by the mass of water accumulating in the area of lower concentrationwhat is hydrostatic pressure?17
83053769251. hypotonic=cell gains water 2. hypertonic=cell loses water 3. isotonic=no change in cell volumewhat are the three osmotic factors?18
8305381283cytolysiswhat will happen to an animal cell in a hypotonic solution?19
8305382582turgor pressurewhat will happen to a plant cell in a hypotonic solution?20
8305383942crenationwhat will happen to an animal cell in a hypertonic solution?21
8305384986plasmolysiswhat will happen to a plant cell in a hypertonic solution?22
83053876881. all known living things are made up of cells 2. the cell is structural & functional unit of all living things 3. all cells come from pre-existing cells by division 4. cells contain hereditary information which is passed from cell to cell during cell division 5. all cells are basically the same in chemical composition 6. all energy flow of life occurs within cellswhat are the six factors of cell theory?23
83053970481. light microscope 2. scanning electron microscope 3. transmission election microscopewhat are three main types of microscopes?24
8305400495a microscopic single celles organsim that has neither a distinct nucleus with a membrane nor other specialized organellesWhat is the definition of a prokaryotic cell?25
8305402025an organism consisting of a cell or cells in which the genetic material is DNA in the form of chromosomes contained within a distinct nucleuswhat is the definition of a eukaryotic cell?26
8305407286DNA, cell membranes, ribosomes, sites of metabolismWhat do prokaryotic and eukaryotic cells have in common?27
8305416752surface area to volume ratiowhat is the ability of a cell to bring in enough nutrients dependant on?28
8305418073ratio decreaseswhat happens if a cell size increases?29
8305421723the nucleus and the cytoplasm (organelles and cytosol)cells are divided into two regions..30
8305423221the outside barrier of the cellwhat does the plasma membrane form?31
8305425333the fluid-mosaic modelwhat is the name of the currently accepted description of the plasma membrane called?32
8305427563moves from high to low concentration through a protein chanelwhat is the cycle that facilitated transport undergoes?33
8305447885nodoes facilitated transport require energy?34
8305450013glucose, amino acids etc..what are some examples of lipid insoluble molecules that pass through facilitated transport?35
8305451707yesdoes active transport require energy?36
8305456243moves substances against the concentration gradientwhat is the cycle of active transport?37
8305457948sodium/potassium pumpwhat are some examples of molecules which pass through active transport?38
8305459892engulfmentendocytosis39
8305459893expulsionexocytosis40
83054636223-D network of fibres which form the microtrabecular latticewhat is the cytoskeleton?41
83054657491. maintains cell shape 2. holds organelles in shape 3. acts as pathways which allow organelles to move 4. cell division 5. cell movement and muscle contractionwhat are the functions of the cytoskeleton?42
8305469091microtubules, microfilaments, intermediate filamentswhat is the cytoskeleton composed of?43
83054712651. make up cilia and flagella 2. intracellular transport 3. make up centrioles 4. form spindle during mitosiswhat are the functions of microtubules?44
8305529492contractile protein called actinwhat are microfilaments composed of?45
83055339301. provides mechanical strength to the cell 2. links transmembrane proteins to cytoplasmic proteins 3. anchors the centrosomes at apposite poles of the cell during mitosis 4. pinches dividing animal cells apart during cytokinesiswhat are the functions of microfilaments?46
8305537893tensile strengthwhat do intermediate filaments provide to the cell?47
8305539060keratin and laminwhat are intermediate filaments made of?48
8305541370they are mainly found in animal cells where they are involved with cellular division and produce basal bodieswhat do centrioles do?49
8305545899spermwhere is the flagella found?50
8305545900trachea and branch, oviduct, kidney tubuleswhere is cilia found?51
8305548706protects and supports the cellcell wall52
8305551142protects the cell, performs active transport and passive transport, moves materials in and out of the cell, communicationcell membrane53
8305553444pads and supports organelles inside the cell. moves by cyclosiscytoplasm54
8305555813controls all of the cell's activitiesnucleus55
8305556752covers and protects the nucleusnuclear membrane56
8305557562produces ribosome'snucleolus57
8305558268provides instructions for the cells activities, (growth, reproduction)chromatin58
8305559225transports materials like proteins around the cellendoplasmic reticulum59
8305560247makes proteinsribosome60
8305560793supplies energy or ATP for the cell through cell respiration using glucose and oxygenmitochondria61
8305563807storage tank for food, water wastes or enzymesvacuole62
8305564752captures sunlight and uses it to produce food through photosynthesischloroplast63
8305566841packages and secrets proteins for use in and out of the cellgolgi body64
8305568308digests older cell parts, food or other objectslysosome65
8305570990used with the spindle apparatus during mitosiscentriole66

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