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AP Biology Cells Review Flashcards

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9881827790endergonic reactionreaction where energy is stored in chemical bonds0
9881827791exergonic reactionreaction where energy is released from chemical bonds1
9881827792Prokaryotic CellsBacteria; no nucleus or organelles2
9881827793Eukaryotic cellscomplex; have organelles3
9881827794Ribosome2 subunits of rRNA; responsible for protein synthesis4
9881827795Golgi BodyPart of the endomembrane system; cis face receives materials, so that they can be modified and packaged; trans face releases vesicles5
9881827796Rough ERaids in protein synthesis by altering the structure of proteins; contains ribosomes6
9881827797Smooth ERsite of lipid synthesis; involved in detoxification of cells7
9881827798Vacuolesstorage vesicles found within the cytoplasm of eukaryotic cells8
9881827799Central VacuoleWhen filled with water it maintains turgor pressure of plant cells; not found in animal cells9
9881827800Chloroplastsite of photosynthesis; only in plant cells; appear green due to the pigment chlorophyll which reflects green light10
9881827801mitochondriafound in BOTH plant and animal cells; site of cellular respiration whereby ATP is made11
9881827802lysosomea vesicle that contains digestive enzymes to break down cellular food and/or waste12
9881827803nucleushome of the genetic information (DNA)13
9881827804nucleolussite of ribosome synthesis; found in the center of the nucleus14
9881827805chromatinthe form in which DNA is found within the nucleus during the majority of the cell cycle15
9881827806nuclear envelopesurrounds the nucleus and contains pores to allow for communication with the rest of the cell, as well as, allowing for ribosomes to exit the nucleolus16
9881827807animals, plants, fungi, protistaeukaryotic17
9881827808bacteriaprokaryotic18
9881827812cell membranefound in ALL cell types surrounding the cytoplasm and maintaining selective permeability19
9881827813cell wallFound in plant, fungal, bacterial, and some prostist cells; rigid wall for protection and shape; regulates the cell's volume20
9881827814turgor pressureexerted onto the cell wall in order to maintain rigid, upright, and erect plant cells and leaves (maximizing photosynthesis)21
9881827815photosynthesisuses sunlight to convert water and carbon dioxide into glucose and oxygen (which is given off as a byproduct)22
9881827816cellular respirationconversion of glucose into ATP, water, and CO2; occurs in the mitochondria23
9881827817cytoskeletoncomposed of protein filaments and microtubules that extend throughout the cytoplasm and allow for cellular movement and structure24
9881827818centriolessmall structures composed of microtubules that organize the cytoskeleton during cell division25
9881827819flagellalong whip-like tails that allow for cell movement; found in sperm cells26
9881827820ciliashort hair-like extensions of the cell membrane that wave back and forth allowing for cell movement; found within cells of the respiratory system27
9881827822catabolic reactionschemical reaction whereby large molecules are broken down (ex: glycogen converted into many glucose monosaccharides)28
9881827823anabolic reactionschemical reaction whereby small molecules come together (as water is removed) to build large molecules (ex: amino acids coming together to create a protein)29
9881827829osmosismovement of water from high to low concentration through aquaporins30
9881827830diffusionmovement of solutes from high to low concentration across the phospholipid bilayer31
9881827831facilitated diffusionmovement of large and/or polar solutes from high to low concentration through a channel or carrier protein within the cell membrane32
9881827832carrier proteinallow for specific molecules to bind and cross the cell membrane33
9881827833channel proteina ligand attaches to its binding site, modifying its shape allowing for the diffusion of molecules across the cell membrane34
9881827835amphipathicmolecules containing a polar and non-polar region; example: phospholipids35
9881827836phospholipid tailsthe non-polar region of the cell membrane36
9881827837phospholipid headsthe polar regions of the cell membrane (facing the extracellular and intracellular areas)37
9881827838hydrophilicpolar38
9881827839hydrophobicnonpolar39
9881827840cytoplasmgel-like matrix in which organelles are suspended40
9881827841organellescontain their own phospholipid bilayers within the cell41
9881827842passive transportmovement of molecules along or with the concentration gradient (high to low)42
9881827843active transportmovement of molecules against the concentration gradient (low to high)43
9881827849Cell signaling pathwayligand binding(Reception) - stimulation of receptor(Transduction) - cellular response44
9881827851ATPAdenosine triphosphate45
9881827852isotonic environmentsolute concentrations inside and out of the cell are equal46
9881827853hypertonic environmentsolute concentration outside of the cell is higher than inside the cell47
9881827854hypotonic environmentsolute concentration outside of the cell is lower than inside the cell48
9881827855result of a hypotonic environmentcytolysis (splitting of a cell)49
9881827856result of a hypertonic environmentplasmolysis (release of cytoplasm; cell shrinking)50
9881827857equilibriumconcentrations of water inside and outside of cell are equal51
9881827858effect of a cell being in equilibriumwater flows into and out of the cell in equal amounts52
9881827859peripheral proteins involved in cellular recognitionglycoproteins53
9881827860cholesterola lipid that helps to maintain the fluidity of the cell membrane54

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