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Biochemistry Flashcards

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5248243752Inorganic Moleculesdoesn't contain carbon but exceptions are carbon dioxide (CO2), calcium carbon (CaCO3) and it an form up to 4 single bonds0
5248360452Organic Moleculescontains carbon like glucose1
52483938696 Major Functional Groupscarbonyl (carbs, lipids), carboxyl (carbs, lipids), hydroxyl , amino (proteins), phosphate (nucleic acids), sulfhydryl (proteins)2
5248431261Carboxyl3
5248460971Carbonyl4
5248469963Hydroxyl5
5248471466Amino6
5248473860Phosphate7
5248473861Sulfhydryl8
5248485910Elements in CarbohydratesCarbon, Hydrogen, Oxygen9
5248488337Elements in LipidsCarbon, Hydrogen, Oxygen10
5248489728Elements in ProteinsCarbon, Hydrogen, Oxygen, Nitrogen (Sulfur)11
5248491845Elements in Nucleic AcidsCarbon, Hydrogen, Oxygen, Nitrogen, Phosphorus12
5248494573Macromoleculeslarge molecules (carbs, lipids, proteins, nucleic acids) and if they contain carbon, they are organic13
5248500212Monomers for CarbsMonosaccharides (simple sugars)14
5248505579Monomers for Lipids1 glycerol and 3 fatty acids15
5248510159Monomers for Nucleic AcidsNucleotides16
5248514923Monomers for ProteinsAmino Acids17
5248518155Polymers for CarbsPolysaccharides18
5248519746Polymers for LipidsTriglyceride19
5248521614Polymers for ProteinsPolypeptides20
5248525580Polymers for Nucleic AcidsPolynucleotides21
5248528739Dehydration SynthesisRemove water in order to build monomers22
5248529977HydrolysisAdd water to break apart bonds (monomers)23
5248542836Carbs MonosaccharidesGlucose, Fructose, Galactose24
5248546805Carbs PolysaccharidesSucrose (glucose + fructose), lactose (glucose + galactose), maltose (glucose + glucose)25
5248556455Carbs DisaccharidesStarch, Glycogen, Cellulose, Chitin26
5248614270Carbs Structural PolysaccharidesCellulose Chitin27
5248615971Carbs Storage PolysaccharidesStarch Glycogen28
5248622240Starch is found inPlants29
5248622241Glycogen is found inAnimal Liver30
5248624394Cellulose is found inPlants31
5248629408Chitin is found inExoskeletons of Arthropods32
5248849889Protein FoldingChain of amino acids33
5248853005Protein Folding Diagram34
5248874212Primary Protein FoldingAA AA AA AA35
5248877328Secondary Protein Folding36
5248885138Tertiary Protein FoldingAdditional folding because of the interactions between side chain (variable groups)37
5248889833Quadinary Protein Folding2 or more polypeptides38

Biochemistry Flashcards

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5330483702Activation energyThe amount of energy that needs to be absorbed for a chemical reaction to start0
5330512390CatalystSubstance that decreases activation energy and increases reaction rate in a chemical reaction1
5330534161EnzymesProtein that catalyzes chemical reaction for organisms2
5330569587AdhesionAttraction between molecules of different substances and the attraction of molecules of the same substances3
5330606632CohesionThe attraction of molecules of the same substances4
5330616262Chemical reactionThe braking and forming of chemical bonds5
5330642545HomeostasisRegulation and maintenance of internal conditions I'm an organism6
5330782017Chemical formulaAn expression used showing the elements present in a compound and their proportions in a relation to a chemical reaction7
5330872597Solutethe minor component in a solution, dissolved in the solvent.8
5330881889SolutionA mixture that's co consistent throughout;also called a homogenous mixture9
5330929280SolventA substance I m which solutes dissolve and is present in greatest, concentration in a solution10
5330986742Amino acidsMolecules that contain carbon,oxygen,hydrogen,and sometimes sulfur11
5331052351CarbohydratesMolecules composed of carbon,hydrogen,oxygen,and starches12
5331063061ProteinsMolecules composed of amino acids13
5331066655LipidsNonpolar molecules that includes fats,oils and cholesterol14
5331078723FatsLarge molecules composed of three fatty acid molecules bonded to a glycerol molecule15
5331106387PolypeptidesChains of amino acids that form proteins16
5331114723Nucleic acidThe genetic material of organisms17
5331128255EnergyWork needed to perform a task18
5331138109MacromoleculesLarge molecules necessary for life,including carbohydrates,nucleic acids and proteins.19
5331151096Fatty acidsChains of carbon atoms bonded to hydrogen atoms20

Biochemistry Flashcards

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7950975783energy-the ability to do work -unit= calories and joules0
7950978462matter-anything that takes up space and has mass -unit= g1
7950986485element-basic form of matter -1-92 -hydrogen - uranium2
7950996839atomsmallest possible unit of an element3
7951000103compound2 or more elements that are chemically combined (bonded) in a specific ratio ex. H20, CO2, C6H12O24
7951019825moleculeatoms (2 or more) of the same element ex. H2, graphite5
7951026656mixture2 or more substances physically combined, can be separated6
7951031813atomic numbernumber of protons7
7951042421atomic massmass of protons + neutrons8
7951056585Pblead9
7951056586Nasodium10
7951059541Hgmercury11
7951072292isotope-differs in number of neutrons, naturally occur -some are radioactive12
7951079091electron chargenegative13
7951079092proton chargepositive14
7951081640neutron chargeneutral (no charge)15
7951083973ionatoms that are charged + or -16
7951101268bondingwhen elements chemically combine by sharing electrons17
7951164514covalent bondingequal sharing of electrons ex. glucose18
7951168297ionic bondingtransfer of electrons (uneven) ex. NaCl19
7951173931molecular/chemical formulashows number and kind of elements ex. h2o, co220
7951229447structural formula of waternumber, kind, and arrangement (3D)21
7951249520boiling pointliquid turns to gas (100* C for water)22
7951253247freezing pointliquid to solid (0* C)23
7951277253frozen waterleast dense (ice floats)24
7951281242solventliquid substance capable of dissolving other substances25
7951283574solutedissolved into solvent26
7951286349solutiona mixture that forms when one substance dissolves another27
7951289677adhesionstick to glass or other surface28
7951294601cohesionstick together29
7951304322why does water have special properties?water is a polar molecule, it has 4 charges (2 negatives, 2 positives), therefore it can stick to 4 other molecules30
7951334885pH-water is 7, neutral -base= higher than 7 (7-14), extra OH's -acid= less than 7 (1-7), extra H's31
7951345214water-universal solvent -lipids can't dissolve32
7951365649organicmust have carbon and hydrogen33
7951367633inorganic-co/co2, h2o, NaCL, KCL are not organic because they don't have carbon and hydrogen -salts, minerals, water34
79514002264 classes of organic compounds (carbon based)-carbohydrates -proteins -nucleic acids -lipids35
7951407864carbohydrates structurecarbon, hydrogen, oxygen36
7951422763glucose-simplest carbohydrate -c6h12o6 -1:2:1 ratio of carbon:hydrogen:oxygen -1:1 ratio of carbon:water -monosaccharide -DDUD37
7951510016monosaccharides1 sugar ex. glucose, fructose, galactose38
7951554282isomerdifferent shape/structure, same molecular formula39
7951648912dehydration synthesisreaction makes 1 bond, 1 water -for each bond formed, 1 water is released -number of molecules joined - 1 = number of waters40
7951670874chemical equation of dehydration synthesisc6h12o6 + c6h12o6 --> c12h22o11 + h2041
7951705651hydrolysisbreak down bonds by adding water42
7951747237disaccharide2 monosaccharides joined together43
7951776389sucrosedisaccharide glucose + fructose44
7951779622lactosedisaccharide glucose + galactose45
7951781844maltosedisaccharide glucose + glucose46
7951833005polysaccharideshundreds or even thousands of monosaccharides, build upon the building block or monomer (glucose) to form a large polymer (starch)47
7951863310amyloseplant starch, straight chain of repeating glucose48
7951877537glycogenanimal starch, stored in liver, branched chain of repeating glucose49
7951963244cellulosecell wall, glucose cross links, can eat but not digest50
7951966813chitininsect's exoskeleton, slightly modified glucose51
7951969933100(c6h1206)100 individual glucose, not bonded52
7951976979[c6h12o6]100100 bonded glucose53
7951980690protein functionstransport, movement, enzymes, support, hormones, defense, storage54
7951985159transporthemoglobin carries o2, cell membrane procedures ex. active transport, facilitated diffusion55
7951991248movementmuscle contraction, actin and myosin interlock, contract when activated w ATP56
7951996173enzymesdigestive, pepsin, enzymes in saliva, tears, etc.57
7952000488supportfound in tissues, collagen and elastin, ex. skin snaps back58
7952006177hormonesregulation of blood sugar, insulin, and adrenaline, causes more glucose (sugar) to be released into blood59
7952011828defenseantibodies, immunoglobulins, white blood cells make them, stick to invaders60
7952016886storageegg white, albumin, store amino acids61
7952020513amino acidbuilding block of protein 20 types end in -ine62
7952025753glycinesimplest amino acid nh2ch2cooh63
7952036486peptide bondbond between amino acids64
7952045439polypeptidelong chain of amino acids that makes proteins65
7952047693every carbon has4 lines attached66
7952047694every nitrogen has3 lines attached67
7952051188every oxygen has2 lines attached68
7952054115every hydrogen has1 line attached69
7952056899lipidsfats, oils, wax, steroids70
7952059571functions of lipidsinsulation cushion structure communication energy storage protection71
7952064939insulationprovide warmth ex. aquatic mammals72
7952067654cushioninternal organs73
7952067655structurephospholipid (cell membrane)74
7952070544communicationsteroid hormone75
7952075984energy storagelong term fat/oil storage76
7952077623protectionex. wax on a leaf, earwax, beeswax77
7952082340building block of lipids3 fatty acids, 1 glycerol78
7952096671saturated fatsolid at room temperature animal ex. butter, bacon fat79
7952348141unsaturated fatliquid at room temperature plant at least 1 double bond ex. olive oil, peanut oil, corn oil80
7952356702ester bondbond that connects the glycerol and fatty acid in fat molecules81
7952389021triglyceridea lipid made of three fatty acid molecules and one glycerol molecule82
7979614504nucleic acid functionshereditary information controls cell self replicate83

biochemistry Flashcards

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5880313041biochemistryfocuses on the chemistry and compositions of living things0
5880320974bio-moleculesmacromolecules and organic molecules1
5880327737types of bio-molecules (4)carbohydrates lipids proteins nucleic acid2
5880334254structure of bio-moleculesanother word for bio-molecules is polymers, polymers are made up smaller parts called monomers3
5880344684Carbohydratesmajor source of energy and includes sugar and starches *made up of carbon hydrogen and oxygen; with a 2;1 ratio to hydrogen to oxygen plants and animals use carbohydrates for maintaining structure within cells4
5880402674proteinsnitrogen containing compounds MADE UP OF CHAINS OF AMINO ACIDS 20 amino acids can combine to form a great variety of protein molecules can compose ENZYMES HORMONES ANTIBODIES AND STRUCTURAL COMPONENTS5
5880403246lipidswater insoluble (fats and oils) made up of carbon hydrogen and oxygen; composed of GLYCEROL and FATTY ACIDS provide insulation STORES ENERGY cushion internal organs6
5880404580nucleic aciddirect the instruction of proteins genetic information an organism receives from its parents two types of DNA: DNA (deoxyribonucleic acid) RNA (ribonucleic acid)7
5880536278uses of starches/ carbohydrates (3)Glycogen Cellulose Glucose8
5880544207Glycogenstarch found in animals9
5880547027Cellulosestarch found in plants that make up the cell wall & provides structural support10
5880553181Glucoseis your body's most important source of energy11
5881299806enzymesspeeds up chemical reations12

Biochemistry Flashcards

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8075999973Macromoleculessmaller organic molecules join together to form larger molecules0
80760350164 major macromolecule classescarbohydrates, lipids, proteins, nucleic acids1
8076035017Polymerslonger molecules built by linking repeating building blocks in a chain - many monomer2
8076077881Dehydration Synthesis- joins monomers by "taking" H2O out - one monomer donates OH- - other monomer donates H+ - together these form H2O - Condensation reaction3
8076094535Digestion/ Hydrolysis- use H2O to breakdown polymers - revers of dehydration synthesis - cleave off on monomer at a time - H2O is split into H+ and OH attach to ends4
8076115912Carbohydrates- carbohydrates are composed of C,H,O5
8076126300Carbohydrates Function- Energy --> ATP - Energy storage - raw materials - structural materials: cyton, cellulose6
8076137524monomer of Carbohydratessugar7
8076139555Sugars- most end in -ose - classified by number of carbons8
8076142258Monosaccharides- simple 1 monomer sugars - glucose9
8076146085Disaccharides- 2 monomer sugars - sucrose10
8076149122Polysaccharides- polymers of sugar - cost little energy to burn11
8076165575Function of sugars- energy storage - starch, glycogen12
8076172399Linear polysaccharidesstarch - easy to digest13
8076176545Branched polysaccharides- Glycogen - hard to digest14
8076192452Cellulose- most abundant organic compound on Earth - herbivores have envolved mechanism to digest i - most carnivores can not digest it15
8076200136Proteins- structurally and functionally diverse16
8076217874Function of proteins- enzymes (pepsin, DNA polymerase) - structure (keratin, collagen) - carries and transport (hemoglobin, aquaporin) - defence antibodies - movement - muscle17
8076243346Structure of Protein- monomer = amino acid - polymer = polypeptide chain = protein - 20 different amino acids - protein can be one or more polypeptide chains folded and bonded together18
8076279882Amino acid- central carbon + amino group + carboxyl group (acid) + R group (side chain)19
8076311339R chainVariable group gives it chemical distinction20
8076320755Building proteins- monomers (amino acids) make up the polymer (protein) - peptide bonds: covalent binds between NH2 (amine) of one amino acid and COOH - Polypeptide chains have directions - N-terminus = NH2 end (amino acid) - top - C-terminus = COOH end - bottom - Repeated sequence (N-C-C) is the polypeptide backbone - Function depends on structure --> 3-D structure --> twisted, folded, coiled into unique shape21
8076369529N-terminusNH2 end (amino acid) - top22
8076371411C-terminusCOOH end - bottom23
8076375307Primary structure- order of amino acids in chain - Amino acid sequence determined by gene (DNA) - Slight change in amino acid sequence can affect protein´s structure and its function24
8076393718Secondary folding- local folding - folding along short sections of polyptide - interactions between adjacent amino acid - forms sections of DNA - alpha helix - beta pleated sheets25
8076419289Tertiary structure- whole molecule folding - interactions between distant amino acids - the structure of a protein that occurs due to interactions between R groups26
8076454474Quaternary structure- more than one polypeptide chain bounded together - then does polypeptide become functional protein27
8076580988Denaturation- unfolding of protein - reasons: temperature, pH, salinity - alters 2 and 3 structure - denatured protein is looser and at a more random state28
8076591994Lipids- composed of C,H,O29
8076596428Family groups of lipidsfats, phospholipids, steroids30
8076604931Fats- fatty acid - long HC "tail" with carboxyl (COOH) group "head" formed through dehydration synthesis - long HC chain is non polar (hydrophobic)31
8076637123Function of fatsenergy storage - concentrated within HC chain - cushion organs - insulation body32
8076674722saturated fats- all C binded to H - No C=C double bondsC - long straight chains - most animal fat - solid at room temp. - contributes to cardiovascular diseases33
8076776175unsaturated fats- C=C double binds in fatty acids - plant and fish fats - vegetable oils - liquid at room temperature34
8076803325Phosphor lipids- structure: glycerol and 2 fatty acids and PO4 - PO4 negatively charged - Fatty acid tails = hydrophobic - PO4 head = hydrophilic . split sides35
8076831089amphipathichydrophilic and hydrophobic36
8076944603Phospholipids in water-hydrophilic heads "attracted to H2O - hydrophobic tails "hide" from H2O -can self-assemble into bubbles - semipermeable membrane37
8076957697Steroids Structure- 4 fused Carbon rings + something else - different steroids created by attaching different groups to rings - different structure created different function38
8076978378Cholesterol- important cell component - animal cell membranes - high concentration to cardiovascular disease - more cholesterol the more fluid the cell membrane --> nothing can go through membrane - regulating molecules entering and exiting the cell39
8077042957cell membrane permitted and not- small lipids can move through - sugar (polar) therefore cannot go through - water, salt is blocked - polar waste is blocked - bilayer is impermeable to polar substances40
8077105260cell membrane channels- Membranes becomes semi-preambles via protein channels - each channel is very specific - Proteins determine membrane´s specific functions41
8077135376Functions of Membrane of Proteins- transporters, enzyme activity, cell surface receptors, cell surface identity maker, cell adhesion, attachment to the cytoskeleton42
8077168373Classes of membrane proteinsPeripheral proteins, Integral proteins43
8077174972Peripheral proteins- loosely bound to surface membrane - Cell surface identity marker - help with transport or communication44
8077178462Integral proteins- pentrate lipid bilayer usually across whole membrane - transmembrane proteins - transport proteins; channels, permeases (pumps)45
8077241953Diffusion- 2nd Law of Thermodynamics - concentration gradient46
8077282985Simple diffusion- move from high to low concentration - diffusion of non polar, hydrophobic molecules - passive transport - no energy needed47
8077302867Facilitated Diffusion- diffusion through protein channels - channels move specific molecules across membrane - no energy needed - diffusion of polar, hydrophilic molecules48
80760294794 major macromolecule classescarbohydrates, lipids, proteins, nucleic acids49
8076029480Active Transport- cells may need to move molecules against concentration gradient - protein pump - allosteric change in protein (different shape when engulfing) - requires ATP - against concentration gradient50
8076024524allosteric changedifferent shape when engulfing51
8076024525Antiporttwo molecules are transported to opposite sides52
8076019787Symporttwo molecules are transported to the same side53
8076019788Endocytosis (3)- Phagocytosis: fuse with lysosome for digestion - Pinocytosis: non-specific process - Receptor-mediated endocytosis54
8076014066Phagocytosisfuse with lysosome for digestion a.Engulfing something large b.Cellular eating c.Specific d.Example: macrophages, neutrophils (immune system)55
8076011076Pinocytosisnon-specific process - cellular drinking56
8082235156Receptor-mediated endocytosistriggered by molecular signal a.Highly specific b.Lock and key process c.Example: LDL (low density lipids), certain molecules which are needed in the nucleus - signal transduction pathway d.Bind to receptors on membrane e.As a certain number of molecules are attached to receptors the pit deepens57
8082239826Exocytosisvesicle is leaving the membrane - cellular waste58
8082242906Osmosis- diffusion of water - following 2nd law of thermodynamics59
8082250631Hypotonic solutionless solute) less concentration of molecules and more concentration of water60
8082252949Hypertonic solution(more solute) more concentration of molecules and less concentration of water61
8082269572Isotonicconcentrations are equal62
8082280520plant cells osmosis-normal state is turgid (Hypotonic solution) -Flaccid: not as stable (Isotonic solution) -Plasmolysis: membrane will pull away from wall (Hypertonic solution)63
8082282237animals cells osmosis-Lysed: cell bursts (Hypotonic solution) -Normal: Isotonic solution -Shrivelled: Hypertonic solution64
8082290028Why are cell so small-The greater the surface area the more surface for diffusion to go across -The larger the surface area to volume ratio the faster the rate of diffusion into a cell65
8083978974Types of microscopy-Light microscope -Electron microscope -Scanning electron microscope -Transmission electron microscope66
8083981779cell theory- cell come from other cells - living things are made from cells67
8083985586Characteristics of life (MRS GREN)- Communication - Reproduction - Order - Growth and development - Energy processing - Regulation - Response to environment - Evolutionary adaption68
8084008257surface:volume ratioSmaller cells can diffuse more at a faster rate because of their higher surface to volume ratio69
8084013251Prokaryotic cells- bacteria and Archea70
8084013252Eukaryotic cells- smaller and simpler - protists, plant, fungi, animal - membrane enclosed nucleus71
8084024476Similarities between Eukaryotic and Prokaryotic cell-Cytosol -Chromosomes -Ribosomes -cytoplasm72
8084028103Plant vs Animal cell similarities-membrane bound organelles such as nucleus, mitochondria, endoplasmic reticulum, goldi apparatus, lysosomes -similar membranes, cytosol and cytoskeleton73
8084032294Plant differences-larger than animal cells -chloroplasts -Vacuoles -Cell wall74
8084059784Mitochondriacarry out cellular respiration75
8084061432Chloroplastphotosynthesizing organelles of plants and algea76
8084064654Nucleuscontains cell´s genetic instructions encoded in DNA - directing protein synthesis77
8084069590Ribosomesmake proteins78
8084071314endoplasmic reticuluman internal membrane system in which components of cell membrane and some proteins are constructed79
8084081159Endosymbiotic theorystates that mitochondria and chloroplasts were formerly small prokaryotes that began living within lager cells80
8084233058cytoskeletonjelly like fluid that fills a cell81
8084236073flagella and ciliaprotude cell membrane and make wave like motions82
8084242157flagellalong and few83
8084243958ciliashort and many84
8084260964Extracellular matrix- hold cell together - made of glycoproteins85
8084263693Glycoproteinscarbon with protein86
8084267106cell junction-consist of multiprotein complexes -provide contact between neighbouring cells or between a cell and the extracellular matrix87
8084327876Fluid-mosaic model of cell membranesflexible layer made of lipid molecules is interspersed with large protein molecules that act as channels through which other molecules enter and leave the cell88
8084342224Types of protein in membrane-Transporter -Enzyme activity -Cell surface receptor -Cell surface identity marker -Cell adhesion -Attachment to the cytoskeleton89
8084345651Transporter proteinallows substances to cross the membrane through a channel in its interior90
8084347448Amphipathichydrophilic ("water-loving") or polar end and a hydrophobic ("water-fearing") or nonpolar end91
8084375005What can go through the membrane?small nonpolar molecules92
8084439436Spontaneous membrane formation- phospholipids can self assemble into simple molecules - a membrane can enclose a solution that differs from its surrounding - basic requirement of life: plasma membrane that allows cells to regulate their chemical exchanges with the environment93
8084456265Aquaporinform pores in the membranes of cells and selectively conduct water molecules through the membrane, while preventing the passage of ions94
8084457999Ion channel-ability to open and close in response to chemical or mechanical signals -open: ions move through channel in single line fashion -ion channels are specific to particular ions95
8084460551Water potentialpotential energy in water - how willing is it to move96
8084463880Water potential equationWater potential = Solution potential + pressure potential97
8084468292Solution Potential-iCRT98
8084470758Gibbs Free Energy eqΔG = ΔH - TΔS99
8084472346Gibbs Free EnergyThe energy of a system available to do work100

Biochemistry Flashcards

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5888229021Peptide bondThe chemical bond that forms between the carboxyl group of one amino acid and the amino group of another amino acid0
5888236787Phosphodiester linkagecovalent bonds that join adjacent nucleotides between the -OH group of the 3' carbon of one nucleotide and the phosphate on the 5' carbon of the next1
5888242303C, H, N, O, P, SWhat are the most abundant elements in biological molecules?2
5888255841Ionic interactions, H bonds, van der WaalsWhat are the three major types of electrostatic forces that act on biological molecules?3
5888263786van der Waals radiiThe optimal packing distance that maximized the attractive van der Waals forces (London dispersion forces) between two non-covalently bonded molecules. (well, the sum of these 2 numbers is the optimal packing distance)4
5888273006hydrophobic effectThe association of a relatively non-polar molecule or group with other non-polar molecules. This is not a bond, this is just the polar water molecules associating with each other and not the non-polar molecule. H-bond of water is disrupted... decreases entropy of the water and this is bad so try and make the smallest surface area of the non-polar thing.5
5888278719amphiphilicOf or relating to a molecule having a polar, water-soluble group attached to a nonpolar, water-insoluble hydrocarbon chain.6
5888279700amphipathicA molecule that has both a hydrophilic region and a hydrophobic region.7
5891680742adenine, guanineName the two purines8
5891687121uracil, thymine, cytosineName the three pyrimidines9
5891699284guanineWhich of the purines has the carbonyl group?10
5911065745thymine has a methyl group on 3' carbonWhat is the difference between thymine and uracil?11
5911081069amino group on the 4' carbon (instead of carbonyl group)How can you recognize a cytosine?12
5911102091idine (cytidine, thymidine, uridine)pyrimidine (uracil, thymine, cytosine) with a five carbon sugar ends in13
5911106384osine (guanosine, adenosine)purines (adenine, guanine) with a five carbon sugar end in14
5911160269five and six ringPurines have (either a six ring or a five and six ring)15
5911163423six ringPyrimidines have (either a six ring or a five and six ring)16
5915475798amino group (donor), N-1 (acceptor)What makes hydrogen bonds in adenine17
5915488334amino group (donor), N-3 (acceptor), C-2 carbonyl (acceptor)What makes hydrogen bonds in cytosine18
5915492054N-3 (donor), C-2 carbonyl (acceptor), C-4 carbonyl (acceptor)What makes hydrogen bonds in thymine19
5915492055amino group (donor), C-6 carbonyl (acceptor), N-1 (donor)What makes hydrogen bonds in guanine20
5949537854hyperchromicityThe capacity of single-stranded DNA to absorb more ultraviolet light at a wavelength of 260 nm than does double-stranded DNA.21
5949537855hypochromicityHypo (low) chromicity (absorbance) (like when we go from single stranded DNA to double stranded DNA)22
5949652868stronger base stacking interactionsWhy does DNA with a higher GC content have a higher midpoint of melting (Tm)? GC pair have...23
6006575043Asparagine no pKaAsn, name and pKa24
6006599839Glutamine no pKaGln name and pKa25
6006610033Cysteine 8.5Cys26
6006619406Histidine 6His name and pKa27
6006778300Lysine, 10Lys, name and pKa28
6006820699Glutamate 4Glu, name and pKa29
6006823598Arginine 12.5Arg, name and pKa30
6006833639Aspartate 4Asp, name and pKa31
6006887077IsoleucineIle32
6006891309TryptophanTrp33
6006910735Tyrosine 10.5Tyr name and pKa34
6707156761-30What is the standard free energy change (delta G) for the hydrolysis of ATP to ADP? in kJ/mol35
6707275069oxidativecatabolism is (reductive or oxidative)36
6707275070reductiveanabolism is (reductive or oxidative)37
6707386889decreased electrostatic repulsion, resonance stabilization, solvation effectsWhat are three things that make ATP a high energy molecule? All of these things are the result of the phosphoanydride bond38
6707456467phosphoanhydrideWhat bond in ATP makes it high energy? When it breaks there is relieved electrostatic repulsion, the products have higher resonance stabilization, solvation effects, all that good shit39
6707733179catabolismWhat generates reduced cofactors/electron carriers?40
670840145710 6How many electrons get pumped across the mitochondrial membrane for every NADH? For every FADH?41
6708433432coenzyme Qmoves freely in the membrane and passes e- to complex 3 from complex 1 and 2. Lipid soluble,42
6708444474Flavin mononucleotide (complex I) Iron-sulphur clusters, copper, cytochrome hemeName the 4 prosthetic groups in the electron transport chain that are reversibly oxidized/reduced and move the electron down the chain43
6708551756succinate fumarateIn complex II ____ is oxidized to ______44
6708577813FoWhich is the transmembrane portion of ATP synthase45
6708579006F1What portion of ATP synthase catalyzes the formation of ATP?46
67086044163 3 2About how many H+ are required to make 1 ATP? So how many ATP are made from (about) 1 NADH? FADH?47
6708947302rate of ATP synthesisWhat determines proton movement and ultimately oxygen consumption?48
6708980823Availability of P and ADPWhat determines the rate of oxidative phosphorylation?49
6709113533hexokinaseThe enzymes that catalyzes the phosphorylation of glucose to form glucose-6-phosphate in the first step of glycolysis. This is one of the regulatory steps of this pathway. It is feedback-inhibited by glucose-6-P. Requires ATP50
6709356934Phosphofructokinase-1 (PFK-1)What is the rate-determining enzyme of Glycolysis? Transfers phosphate from Fructose 6-phosphate to fructose 1,6-bisphosphate. Requires ATP51
6709479106glucose + 2ATP --> 2GAP + 2ADP + 2H+sum up the energy investment stage of glycolysis52
6709541517GAP + NAD+ + Pi <--> 1,3-bisphosphoglycerate + NADH + H+First step in the energy capture stage of glycolysis (or the 6th step overall) looks like twat?53
6709573584GAPDHWhat catalyzes the (oxidation reaction) formation of 1,3-BGP (and NADH) from GAP?54
67099439321,3 BPG --> 3-phosphoglycerate Phosphoglycerate kinaseWhat is the first "energy capture" step in glycolysis? What's the catalyst?55
6709990948phosphoenolpyruvate --> enolpyruvate --> pyruvate pyruvate kinaseWhat is the second "energy capture" step in glycolysis? What is the catalyst?56
6710042586Glucose + 2ADP + 2NAD+ + 2Pi --> 2ATP + 2pyruvate + 2NADH + 2H2O + 2H+What is glycolysis, overall?57
6710067845phosphoenolpyruvate (pep) 1,3 BPG NADH ATPwhat are the high energy things made in glycolysis, including the intermediates58
6710087858Substrate availability Alteration of enzyme activity Alteration of amount of enzyme CompartmentationThe rate of flux through metabolic pathways is regulated by four major processes:59
6710098501Hexokinase Phosphofructokinase-1 Pyruvate kinaseWhich of the enzymes in glycolysis are regulated?60
6710125964glucose-6-phosphate inhibitWhat regulates hexokinase? How does it regulate it? Product inhibition61
6710221048ADP/AMP (+) and PEP (-) fructose-2,6-bisphosphate (+) fructose-6 phosphate (homoallosteric activator) ATP (homoallosteric inhibitor)What is PKF-1 regulated by?62
6710287912ATP (-) fructose-1,6-bisphosphate (+) Feed forwardWhat regulates pyruvate kinase? This is what kind of activation?63
6710451941pyruvate dehydrogenase complex (PDC)Pyruvate is converted to acetyl-CoA via the64
6710456655matrix (of the mitochondria)Where is pyruvate converted to acetyl-CoA?65
6710470240pyruvate + CoA + NAD --> Acetyl CoA + CO2 + NADHWhat is the overall reaction of the conversion of pyruvate of acetyl-CoA?66
6710513283NAD+/NADH ratio Ca++ concentration (+) Acetyl-CoA (-)The pyruvate dehydrogenase complex is regulated by:67
6710531237offThe pyruvate dehydrogenase complex is switched __ when phosphorylated68
6710996541citrate synthasecouples acetyl-CoA to oxaloacetate and then hydrolyzes the resulting product, forming citrate and CoA-SH.69
6711121424Pyruvate CarboxylaseThe formation of oxaloacetate from pyruvate is an important anaplerotic reaction. The reaction is catalyzed by ______ ______. This enzyme is activated by acetyl-CoA and inhibited by ADP70
6711260492uracil71
6711261245thymine72
6711263184adenine73
6711265664guanine74
6711386131Aspartate (Asp, -) Glutamate (Glu, -) Lysine (Lys, +) Arginine (Arg, +)what are the charged amino acids?75

Lecture 1: Biochemistry Flashcards

Terms : Hide Images
5899369074Name the 4 major classes of biomoleculesproteins, carbohydrates, nucleic acids, and lipids0
5899379473What is the purpose of the central dogmato describe the basic principles of biological information transfer1
5899396494Proteins are polymers made from ________ monomersamino acid2
5899401603What determines the function of a proteinthe shape and content of amino acids3
5899410817Name the 5 functions of a protein and give an example1) signal molecule: hormone-insulin 2) receptors for molecules - hemoglobin 3) biological catalysts - enzymes 4) structural building blocks - keratin in hair and nails 5) motors - myosin in muscle4
5899439076What are the monomers of carbohydratesmonosaccharides such as glucose, fructose, and galactose5
5899458049What are the 4 major functions of a carbohydrate1) fuel - create ATP from glucose 2) store energy - glycogen made up of glucose 3) signal molecule 4) recognition of other cells bc of carbs on cell membranes6
5899482908What are the monomers of nucleic acidsnucleotide7
5899486910What are the components of a nucleotidephosphate group, pentose sugar, and nitrogenous base8
5899495304What are the components of an amino acidamino group, central carbon w/a H and a Rgroup, and carboxyl group9
5899506963Name 3 major nucleic acidsDNA, RNA, and ATP10
5899694910Name the 4 functions of nucleic acids1) store and transmit genetic information 2) structural 3) signaling 4) energy currency - ATP11
5899730386Which nucleic acid forms a double helixDNA12
5899733046Which nucleic acid forms a single strand normally but maybe double stranded and form complex structuresRNA13
5899740004What are the components of a DNA molecule - be specificphosphate group deoxyribose sugar nitrogenous bases: adenine, guanine, cytosine, or thymine14
5899787892What are the components of a RNA molecule - be specificphosphate group ribose sugar nitrogenous bases: adenine, guanine, cytosine, or uracil15
5899808040What specifies the information content in a nucleic acidthe arrangement of nucleotides16
5899813212What is the function of the central dogmadescribes the flow of genetic information17
5899817643Define genomecomplete set of genetic information i.e. contains blueprints of an organisms in the form of genes that encode proteins18
5899828304Define replicationprocess of making DNA from DNA19
5899831055Define transcriptionprocess of making RNA from DNA20
5899835761Define translationprocess of making proteins from RNA21
5899843222Describe the flow of genetic information from DNA to ProteinsDNA is TRANSCRIBED into RNA which is TRANSLATED into a protein22
5899853698Which enzyme catalyzes DNA replicationDNA polymerase by joining 2' deoxy nucleotides23
5899876429Which enzyme catalyzes transcriptionSince transcription is making RNA the enzyme is RNA polymerase24
5900046801How many different types of RNA are thereEach cell in an organism expresses specific types of RNA25
5900299441Name 3 major functions of a lipid1) creates membrane: bi-phosphate layer 2) store energy as fuel: in hydrocarbon chains 3) Signals: lipid derivatives are used as cells to transmit signals26

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