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AP Bio vocab

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214909997Polar Moleculemolecule in which opposite ends have opposite electric charges
214909998CohesionThe holding together of Hydrogen bonds to a substance
214909999Kinectic Energyenergy of motion
214910000Calorieunit of heat defined as the quantity of heat required to raise the temperature of 1 gram of water by 1 degree centigrade at atmospheric pressure
214910001Evaporative CoolingThe surface of the liquid that remains behind to cool down
214910002Organic Chemistrythe branch of chemistry that specializes in the study of carbon compounds
214910003Vitalismthe belief in a life force outside the jurisdiction of physical and chemical laws
214910004Mechanismthe view that all natural phenomena including the processes of life, are governed by physical and chemical laws
214910005TetravalenceOne facet of carbon's versatality that makes large, complex molecules possible
214910006Hydrocarbonsorganic molecules consisting of only carbon and hydrogen
214910007Structural IsomersOne of several organic compounds that have the same molecular formula but differ in the covalent arrangements of their atoms
214910008Geometrical IsomersOne of several organic compounds that have the same molecular formula but differin the spatial arrangements of their atoms
214910009Stereoisomers (Enantiomers)molecules that are mirror images of each other
214910010Hydration shellThe sphere of water molecules around each dissolved ion
214910011HydrophilicAny substance that has an affinity/attraction for water (Hydro-water, Philios- loving)
214910012Colloida stable suspension of fine particles in a liquid
214910013Hydrophobicsubstances that do not have an affinity for water, non-ionic, and nonpolar
214910014Molecular MassThe sum of the masses of all the atoms in a molecule
214910015Mole6.02 X 10^23
214910016Molaritynumber of moles of solute per liter of solution
214910017Hydrogen Iona single proton with a charge of 1+, the electron left behind
214910018Hydroxide Iona water molecule that has lost a proton; OH-
214910019Bufferssubstances that minimize changes in the concentrations of H+ and OH- in a solution
214910020Acid PrecipitationRain, snow, or fog that is more acidic than pH 5.6.
214910021Functional Groupscomponents of organic molecules that are most commonly involved in chemical reactions
214910022Adenosine Triphosphate (ATP)The primary energy- transferring molecules in the cell
214910023Made of CellsA characteristic of a living organism- the cell is the basic unit of structure and all living things
214910024OrganizedA characteristic of a living organism- All organisms are organized
214910025ReproductionA characteristic of a living organism- All organisms reproduce
214910026EnergyA characteristic of a living organism- All organisms consume engery either from the sun or from food/water
214910027Growth and DevelopmentA characteristic of a living organism- All organisms grow/develope
214910028Respond to stimuliA characteristic of a living organism- All organisms respond to stimuli (like pain, sun, etc)
214910029AdaptA characteristic of a living organism- All organisms adapt and evolve
214910030CHONPS (Homeostasis)A characteristic of a living organism- Maintance of constant stablility (Carbon, hydrogen, oxygen, nitrogen, phosphorus, sulfur)
214910031IonsAtoms with a positive or negative charge (Anions and Cations)
214910032IsotopesAtoms of the same element differing only in the number of neutrons
214910033Electron OrbitalsPaths electrons take around the nucleus
214910034Ionic Bondswhen atoms take on or give up electrons to become charged particles (ions)
214910035Non-polar Covalent Bondequal electronegativities of shared electrons
214910036Polar Covalent BondHigher or unequal electronegativity of shared electrons
214910037Hydrogen Bond2 hydrogens attracted to a + atom of another molecule
214910038SaltsIonic compound in which the H+ of an acid is replaced by another +ion
214910039Hydrationthe interaction of solute particles and water. When the + ends of a water molecule are attracted to the negative ions and the -ends of water are attracted to the positives ions. Tends to make salts fall apart
214910040Universal SolventA solvent that dissolves or breaks down everything. Dissolves most polar and ionic substances, anything with a charge
214910041AdhesionThe clinging of one substance to another
214910042CohesionHydrogen bonds holding onto the substance together, collectively (water sticking to itself)
214910043High Surface Tensiona measure of the difficulty to stretch or break the surface of a liquid
214910044Most dense at 4 degrees centigradeWater expands
214910045High Specific Heatamount of heat needed to raise the temp of 1g of substance 1 degree C
214910046High Heat of Vaporizationquantity of heat a liquid must absorb for 1g to change from a liquid to a gas
214910047Capillaritywater sticks to sides (cohesion) and goes up (adhesion)
214910048Organic CompoundCarbon based, living, bigger/larger, covaltent bond, slow reaction
214910049Inorganic CompoundMetal ion, non-living, smaller, ionic bonds, fast reactions
214910050Isomerscompounds that have the same numbers of atoms of the same elements but different structures and hence different properties (Structural, Geometrical, Steroisomers)
214910051Monomerbuilding block or small unit of a polymer; can be linked into chains
214910052Polymerlong chain of monomer units (monomers)
214910053Dehydration Synthesisremoval of water , removing a water molecule to form a bond
214910054Hydrolysiswater is used to break down a polymer
214910055CarbohydratesHydrates of carbon (-ose= carbohydrate)
214910056Monosaccharidessimple sugars- primary engery source in animals (Glucose, galactose, fructose, ribose, deoxyribose_
214910057Disaccharidestwo monosaccharides joined together through a condensation reaction (Maltose, Lactose, Sucrose)
214910058Polysaccharidespolymers of monosaccharides (may be alpha or beta)
214910059StarchPolysaccharide- sugar in plants, 10-20% amolos (long straight chains of alpha 1-4 linked glucose), 80-90% Amylopectin, short branched chains
214910060GlycogenPolysaccharide- sugar in animals, stored in liver and muscles, large branched chains of glucose
214910061CellulosePolysaccharide- plant cell walls, long straight chains of Beta 1-4 linkages (humans cannot digest it)
214910062ChitinPolysaccharide- exoskeleton, arthro pods
214910063AmyloseLinear Polysaccharide soluable in water.
214910064AmylopectinBranched Polysaccharides insoluable in water
214910065Lipidssubstances which are non-polar, insoluable in water, large, and hydrophobic
214910066Fatty Acidmonomer unti that has long hydrocarbon chains with a carboxylic acid group at one end
214910067Saturated Fatty Acidsolid at room temp, from animals, saturated bonds, no double bonds between carbon atoms
214910068Unsaturated Fatty Acidunstaturated bonds, liquid at room temp, typically from plants, double bonds in the carbon chain
214910069Polyunstaturate Fatty Acidfatty acid with more than 1 double bond
214910070Triglycerideglycerol and 3 fatty acids
214910071Phospholipidsglycerol, 2 fatty acids, and a phosphate group
214910072Steriodsfour fused rings- have same properties as lipids but are structurely different
214910073Waxeslong chain alcohol connected to a fatty acid
214910074ProteinsFound everywhere in the body and have a variety of structural and chemical functions
214910075Animo Acidsbuilding blocks of proteins (20 different amino acids used for life) *only left hand form is found in nature, 10 essential and 10 non-essential
214910076R-groupsDetermines the properties of amino acids, they can be polar, nonpolar, and ionic. (Protein folding is affected by its charges)
214910077Peptide bondsbond between 2 amino acids
214910078Peptidesmany animo acids bonded
214910079Primary protein structureorder of amino acids
214910080Secondary protein structure3D shape due to hydrogen bonding on a molecular backbone (Alpha helix, Beta pleated sheet)
214910081Tertiary Protein Structure3D shape- additional bending and folding due to interactions between the R-groups (includes Secondary and primary protein structures)
214910082Quaternary Protein Structure2 or more protein chains together (often contain a prosthetic group)
214910083Denaturationthe breaking down of a protein (loss of 3D shape) [pH, temperature, other various chemicals, detergents, physical shaking]
214910084Binding proteinsspecial shapes that bind to other substances (proteins)
214910085Structural Proteinshelps with the shape and function of body (proteins)
214910086Enzymesorganic catalysts which lower the activation energy of a reaction (end in -ase)
214910087Metabolismsum of all chemical reactions in the body
214910088Catabolismthe breakdown of a substance
214910089Anabolismsynthesis of a substance
214910090Catalystany molecule which accelerates a reaction by lowering the activation energy
214910091Activation Energyengery needed to start a chemical reaction
214910092Chemical Equilibriumrate of a reaction in one direction equals the rate in the other
214910093Substrate Enzymesthe molecule an enzyme binds to (could be 2 substances)
214910094Active Site Enzymessite at which the enzyme binds to the substrate
214910095Induced fit model Enzymesenzyme changes shape to fit the substrate
214910096Cofactors (Coenzymes)non-protein molecules which assist enzymes
214910097Allosteric Enzymesenzymes with 2 binding sites: Substrate and Effector site
214910098Allosteric Effectorbinds to an allosteric enzyme- it can either enduce it or inhibit it (kind of like an on and off switch)
214910099Competitive Inhibition2 substances compete for the active site on an enzyme
214910100Negative FeedbackAs a product is formed it hinders the enzyme used to make it. (same process as Allosteric enzymes, but hwne a substance is gone, system shuts down until there's more again. Then it opens up)
214910101Beaurattest for proteins- turns pink, purple, and blue
214910102MacromoleculeA giant molecule formed by the joining of smaller molecules, usually by a condensation reaction
214910103Glycosidic Linkagea covalent bond formed between 2 monosaccharides by a dehydration reaction
214910104Fatlarge molecules that are assembled from smaller molecules by dehydration reactions
214910105CholesterolA common component of animal cell membranes and is also the precursor from which other steriods are synthesized
214910106Alpha HelixSecondary structure that is a delicate coil held together by hydrogen bonding between every 4th amino acid
214910107Beta Pleated SheetSecondary structure, 2 or more regions of the polypeptide chaing lying side by side are connected by Hydrogen bonds between parts of the 2 parallel polypeptide backbones
214910108Disulfide BridgesA strong covalent bond formed when the sulfur of one cysteine monomer bonds to the sulfur of another cysteine monomer
226453726Robert Hookediscovered the cell in 1665
226453727Cell fractionisma technique used by scientists to separate the different cell parts
226453728Cytosolsemifluid substance in the membrane in which organelles are found
226453729NucleoidA dense reion of DNA in a prokaryotic cell
226453730CytoplasmThe entired region between the nucleus and the plasma membrane
235000471Cell Theory1. All living things are made of cells 2. The cell is the basic unit of structure and function in all living things 3. All cells come from pre-existing cells
235000472Eukarotic Cellshave a true nucleus and membrane bound organelles
235000473Prokaryotic Cellsno true nucleus or membrance bound organelles
235000474Archaebacteriabacteria that live under extreme conditions such as: high temperature, high salt content, and low oxygen
235000475EubacteriaKingdom of unicellular prokaryotes whose cell walls are made up of peptidoglycan
235000476Plasmid RingsRings of DNA
235000477Ribosomesnon membrane bounded organelles responsible for protein synthesis
235000478Cell WallShape and protect the cell, made of peptidoglycans and cellulose
235000479Gram StainGram positive- thick peptidoglycan cell wall Gram negative- thin peptidoglycan cell wall
235000480Capsulejelly-like coding surrounding cell wall, prevents it from drying out, it's sitcky, and it protects it.
235000481Pilishort bristle-like structures, they too help attachment to other cells, they allow for genetic DNA to transfer
235000482Flagellaprovide locomotion for cell, made of flagellen
235000483CoccusCell shape-spherical
235000484BacillusCell shape- rod shaped
235000485SpirilliumCell Shape- sprial or corkscrew shaped
235000486SpirochetesCell Shape- corkscrew with flagella inside the membrane
235000487Chemotaxisprokaryotic cells move towards or away from chemicals
235000488Conjugation2 pili form a bridge to transfer DNA/genetics (Sexual)
235000489Transformationuptake of naked DNA (Sexual)
235000490Transduction(Bacteria phage) through a vector (Sexual)
235000491Binary FissionBacteria splitting into two (Asexual)
235000492Heterotrophsfeed off of other sources
235000493Photoheterotrophsuse light to make ATP, eats to get carbon
235000494Chemoheterotrophsdecomposures, most common bacteria, feed upon substrate they are living on
235000495PhototrophsUse only light and carbondioxide
235000496Chemotrophs(Chemosynthetic Autotrophs) use energy from inroganic substances and carbon dioxide.
235000497Chemoautotrophsneed only carbon dioxide to make energy
235000498Methanogens(Archaebacteria), Archaebacteria that live in anaerobic environments and produce methane as a by-product of their metabolic process
235000499Extreme HalophilesArchaebacteria that live in a high salt concentration
235000500ThermoacidophilesArchaebacteria that prefer hot temperatures and acidic environments
235000501Plasma membrane (Cell membrane)responsible for cell to cell recognition
235000502Fluid Mosaic Modelwhole bunch of phospholipids floating around, not locked into place, to form the membrane
235000503Integrel Proteinsmembrane proteins that go through the entire membrane
235000504Peripheral Proteinsmembrane proteins found on the sufrace of the membrane
235000505Phospholipid Membranehydrophobic barrier of the cell
235000506Channel Proteinsproteins that create a passage for water solubles to pass
235000507Transport Proteinsproteins that create an active transport that goes against concentration gradience
235000508Recognition proteinsglycoproteins that are responsible for attachment points and cell-to-cell recognition.
235000509Receptor Proteinsreceptors for horomone and other trigger substances that bring about secondary proteins
235000510Electron Transfer Proteinsproteins that transfer electrons from one molecule to another
235000511Cytoplasmnutrient-rich fluid, jelly-like substance which surrounds the organelles (colloidal in nature)
235000512Nucleushouses the genetic material in a cell, has 2 membranes and an envelope
235000513Nucleolusmakes and stores RNA
235000514Endoplasmic ReticulumInternal cellular transport system
235000515Rough ERthe portion of the endoplasmic reticulum studded with ribosomes.
235000516Ribosomeswhere protein synthesis happens, it can make and create bonds
235000517Smooth ERthe portion of the endoplasmic reticulum that is free of ribosomes.
235000518Golgi apparatusResponsible for packaging, sorting, and secreting of materials made in other parts of the cell
235000519LysosomesResponsible for intercellular digestion
235000520Mitochondriapowerhouse of the cell, produces energy and is made up of double membranes
235000521Plastidsorganelles that are surrounded by a double membrane and contain their own DNA
235000522LeucoplastType of plastid that stores starch
235000523Chromoplastplastid containing pigments other than chlorophyll usually yellow or orange carotenoids
235000524Chloroplastan organelle found in plant and algae cells where photosynthesis occurs
235000525Cytoskeletonkeeps cell in chape and handles movement in cell
235000526Micro tubulesfound in animal & plant cells, long hollow tubes composed of tubulin(protein), functions like a skeleton, moves chromosomes, makes up cilia, flagella, & centrioles
235000527Intermediate filamentsThreadlike proteins in the cell's cytoskeleton that are roughly twice as thick as microfilaments
235000528Microfilamentshelp pinch off cytoplasm
235000529Flagella and cilia(like whiskers) help move things across the cell's surface, usually associated with sex cells
235000530basal bodiesbase of flagella, made of microtubules
235000531CentriolesLocated near the nucleus and help to organize cell division, only in animals
235000532Actin and myosinmake up muscle, help pinch off cytoplasm
235000533Vacuolesregulates water in plants, stores food, and helps with enzyme waste
235000534Peroxisomes/microbodiessmall vesicle, breaks down alcohols and other toxins
235000535Bulk Flow Movementmolecules moving all at once, hydrostatic pressure brought by gradients
235000536Gradientsdifference in concentration arcoss membrane (diffusion)
235000537Selectively Permeableallows certain molecules in and keeps certain molecules out
235000538Solventliquid portion, , a liquid substance capable of dissolving other substances
235000539Solutethe dissolved substance in a solution
235000540Hypertonicdescribes a solution whose solute concentration is higher than the solute concentration inside a cell
235000541Hypotonicdescribes a solution whose solute concentration is lower than the solute concentration inside a cell
235000542Isotonicdescribes a solution whose solute concentration is equal to the solute concentration inside a cell
235000543Diffusionmovement of molecules from high concentration to low concentation
235000544Osmosisdiffusion of water through a selectively permeable membrane
235000545Dialysisdiffusion of solutes across the membrane, uses membranes to seperate solutes
235000546Active Transportagainst the concentration gradient, uses energy (pumps)
235000547Passive Transportwith the concentration gradient, uses no energy
235000548Simple diffusionPassive transport that lets materials simple diffuse across the membrane, from high to low
235000549facilitated diffusionpassive transport that utilizes a carrier protein but uses no energy. Movement of larger, water soluble meterials across the membrane with the use of a carrier protein
235000550Carrier moleculesproteins in the membrane, highly specific molecules; allows the cell to regulate what goes in and out
235000551Gaited Ion Channelsprotien channels which allow ions like Na+ to easily flow through the membrance as needed
235000552Pumpsactive transport that moves materials from areas of low to areas of high concentration (against concentration gradients)
235000553Endocytosisthe transport of solid matter or liquid into a cellby means of a coated vacuole or vesicle (distinguished from exocytosis).
235000554Vesiclesmall membrane-bound sac that functions in moving products into, out of, and within a cell
235000555PinocytosisCell drinking- intaking of liquids
235000556PhagocytosisIntake of solid (food) particles
235000557receptor-mediated endocytosisA molecule attaches to a receptor to form a vesicle
235000558ExocytosisVesicles fuse to the cell membrane to expel wastes or products
235000559Plasmolysisoccurs in plants, movement of water out of plant by a hypertonic environment (wilting)
235000560Turgor Pressurepressure cause by hypotonic solution placed on the cell wall due to in flow of water, water entering the cell
235000561Crenationequivalent to plasmolysis, but in animals. water moving out of cells by a hypertonic environment
235000562Cytolysisequivalent to turgor pressure but in animal cells, however when too much water entesr the cell it will explode
235000563Countercurrent Exchange, the exchange of a substance or heat between two fluids flowing in opposite directions
235000564Glycocalyx"fuzzy layer", made of glycolipids and glycoproteins on the outside of the cell. Helps with cell to cell recognition, receptor sites, and helps cells stick to each other
235000565Cell junctionsconnections between cells, in animals
235000566tight(Cell junciton) membrane proteins attach to each other like a zipper, barreir in any areas that need to be water proof
235000567Gap(Cell junciton) on plasma membrane, channel proteins align with each other
235000568Desmosomes(Cell junciton) adhesive to keep cells together
235000569PlasmodesmataCell junciton found in plants, channels which pass through the cell wall. the smooth ER goes through the plant cell to communicate and transfer materials.
245999527Photosynthesisprocess by which plants use the sun's energy to convert water and carbon dioxide into sugars
245999528Light+ 6H2O+ 6CO2-- C6H12O+ 6O2photosynthesis equation
245999529Photonspackets of light energy which travels in waves
245999530electromagnetic spectrumplants use the visible spectrum. Shows wave lenghts of plant pigments
245999531Long wave photonslower energy, lower heat, and less harmful, infared waves
245999532Short wave photonsmore engery, marcromolecules, harmful, can cause cancer and mutation, ultraviolet waves
245999533Chlorophyll agreen pigments, absorb lights in red, blue, and sometimes violet. Reflect green and blue/green.
245999534Chlorophyll bgreen pigments, absorb light in red, blue, and some violet range. reflect green (olive green)
245999535Carotenescarotenoid that is an orange pigment. It helps absorb light chlorophyll can't pick up. protects volital chlorophyll
245999536Xanthophyllscarotenoid that is a yellow pigment. helps absorb light chlorophyll can't pick up. protects volital chlorophyll
245999537Anthocyaninsdeep purple/blue pigments. typically found in vacuoles (used in flowers)
245999538Engleman Experimentthe light prism on spirogyra. shows where the pigments are
245999539Spec 20machine that shows the point of lights. The dye measures exact rate of photosynthesis
245999540Stromapart of the chloroplast that contains an enzyme rich solution and is the place where CO2 is reduced. Equivalent of cytoplasm
245999541Thylakoidsphotosynthetic membrane system within the chloroplast. Houses photosynthetic pigments (chlorophyll and carotenes)
245999542Grana (Granum)stack(s) of thylakoids
245999543light reactionstype of photosynthesis that gathers light to make NADPH and ATP. It takes place in the thylakoids
245999544Photosystemspigment complexes made of chlorophyll a and b, carotenes, and xanthophylls. They channel light and are embedded in thylakoids
245999545electron acceptormolecule that grabs/captures the electron and transfers it to ETS/ETC.
245999546Electron transportseries of membrane proteins in thylakoid membrane from 1 molecule to another providing energy to run proton pumps.
245999547chemiosmosisATP is produced from a hydrogen ion gradient through ATP synthase enzyme
245999548Z diagramsplitting water to release electrons which will replace those lost in photosystem II
245999549photolysisan enzyme in photosystem II that breaks water down into H+ and O2 molecules
245999550Cyclic pathwayProduces ATP only and deals with photosystem I only , portion of light reaction that generates ATP and only involves photosystem 1
245999551non-cyclic pathwayproduces ATP and NADPH , pathway that uses both photosystem I and photosystem II
245999552Chemiosmosis brings about photophosphorylationwhen ADP adds a phosphate to creat ATP. the flow of hydrogen ions through an ATP synthase enzyme to make light energy.
245999553Light independent reactions (calvin cycle)plants use energy that ATP and NADPH contain to build stable high energy carbohydrate compounds that can be stored for a long time. These are the steps in which the hydrogen (H) that is held by the NADPH is combined with Co2 through a series of steps to form glucose ATP and NADPH provide the energy to power this cycle
2459995543 steps of calvin cyclemust turn 6 times in order to produce 1 glucose. 1. CO2 fixation 2. CO2 reduction 3. Regeneration of RuBP 4. production of glucose (not part of actual cycle)
245999555CO2 Fixationattachment of CO2 to RuBP to form an unstalbe intermediate, immediately breaks down into 2 three-carbon PGAs
245999556CO2 ReductionAdds an electron or hydrogen ion. PGA is reduced to PGAL (PGA turns into PGAP first then to PGAL) ATP and NADPH are used here
245999557Regeneration of RuBP6 turns of cycle yield 2 PGALs that are used for production of glucose and 10 can be recycled back into six 5-carbon RuBPs
245999558C3 photosynthesistypical calvin cycle ex: most typical plants
245999559C4 photosynthesisCO2 is fixed to form a 4-carbon molecule called oxaloacetic acid (OAA). OAA is then converted to malate and transferred into bundle sheath cells. Plants grow in huge amount in short time. ex: crabgrass, corn, and sugar cane
245999560CAMfixes CO2 to a 4-carbon molecule, called OAA, at night OAA is then converted to malic acid and transferred to the vacuole at night when the stomata can open ex: desert plants
245999561Photorepirationcaused when a protein found in plants, called rubisco, fixes O2 instead of CO2 like it normally does. Rubisco is not an efficient protein. O2 fixations causes products other than glucose in which peroxisomes must rid the cell of. 30-40% of all energy in light reactions is used to overcome it.
252870084Metabolic Pathwaythe series of chemical (enzyme controlled) reactions which turn one chemical into another
252870085First law of thermodynamicsenergy cannot be created or destroyed, only converted from one form to another
252870086second law of thermodynamicsin any spontaneous process, there is always an increase in the entropy (randomness or disorder) of the universe.
252870087ATPenergy storage molecule in the cell, easily obtainable energy, energy currency of the cell
252870088Aerobicrespiration with oxygen to make ATP energy in living organisms
252870089Anaerobic(fermentation) respiration without oxygen
252870090GlycolysisBoth anaerobic and aerobic start with this, it occurs in the cytoplasm, converts glucose to pyruvic acid, and produces 2 ATP and 2 NADH
252870091Lactic Acid fermentation(in the cytoplasm of animals and bacteria) pryuvic acid is converted to lactic acid
252870092Alcoholic fermentation(in the cytoplasm of yeast and plants) converts pyruvic acid into ethyl alcohol and carbon dioxide
252870093coupled reactionswhen a non-spontaneous reaction (endergonic) is "coupled" to a spontaneous reaction (exergonic) in order to conserve energy
252870094substrate level phosphorylationwhen a high energy phosphate is transferred directly from a phoshporylated metabolic compound to a molecule of ADP
252870095Oxidative phosphorylationelectrons are removed from carrier molecules (NAD and FAD) and passed through a series of electron carrier proteins which "pump" hydrogen into the intermembrane space of the mitochondria
252870096Efficiency of aerobic respiration7.3kcal-mol of ATP x 36 ATP/ 686 kcal-mol glucose, 39% of the available energy is extracted from the glucose molecule
252870097Creatine Phosphate(3x to 5x more plentiful than ATP) transfers a phosphate to ADP immediately, compound in muscular cells
252870098anaerobic glycolysis(after creatin phosphate is used up) produces lactic acid
252870099Phosphagen system in musclesAll the creatine and ATP in the muscle have about 15 seconds of maixmal contraction

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