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Biochemistry Flashcards

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7513777737Intramolecular bondswithin how atoms bond together to form molecules0
7513783818Ionic Bondstransfer of e-1
7513786479Covalent bond2
7513795565polar covalent bondelectrons shared unequally3
7513798102Non-Polar Covalent bondelectrons shared equally4
7513805959Intermolecular Bond5
7513803158Polar/hydrogen bondweak attractions between oppositely charged polar zones of different molecules6
7513830045properties of water1)cohesive 2)adhesive 3)Universal solvent 4) surface tension 5) high specific heat 6) high heat of vapor7
7513842288pH Scalepower of H+8
7513845447AcidH+ > OH-9
7513849266NeutralH+ = OH-10
7513853987baseH+ < OH-11
7513858657buffers-substances that resist change in pH -Biological systems use them to regulate pH -bicarbonate ion12
7513874612Carbohydrate- monosaccharides/simple sugars - Disaccharide - Polysaccharide13
7513891915Monosaccharide-carbohydrate - n(CH2O); 3>n>7 - glucose -fructose14
7513907179Glucose-bloodsugar15
7513933936Fructose- fruit sugar16
7513950236Disaccharide-carbohydrate - 2 monosaccharides joined by dehydration synthesis - glucose + fructose --> sucrose17
7513958774Polysaccharide- many monosaccharides joined by dehydration synthesis - Starches - Glycogen --> animals - Cellulose --> Plants - Chitin --> insects18
7513976979Fats/Lipids- (CHO - energy) - 3 fatty acids + 1 glycerol --> 1 fat + 3 H2019
7513990405Cholesterol- HDL = good fat - LDL = bad fat20
7513997898Animal Fat- Solid at room temp - Saturated - Butter, lard, bacon21
7514003282Plant Fats- liquids at room temp - Unsaturated - Corn oil, canola oil, olive oil22
7514015273Proteins- polymer of amino acids - 50-3,000 animo acids long23
7514030831Structural proteins- hair, hooves, muscles24
7514035895Functional/regulatory proteins- enzymes, hormones25
7514039197enzymes- speeds up the rate of reaction by lowering activation energy (catalyst) - large proteins - low activation energy26
7514043195Amino Acids- 20 on earth27
7514053364Dipeptide- amino acid + amino acid --> dipeptide + H2O - dehydration synthesis28
7514074561Polypeptide- 3-49 amino acids long29
7514081622Nucleic Acids- DNA/RNA - DNA makes RNA --> RNA makes proteins30
7514084766NucleotidesMonomer of Nucleic acid31
75140979093 parts of a nucleotide1) 5 Carbon sugar 2) Phosphate group -PO4 3) Nitrogen base32
7514107149DNA- deoxyribose - -PO4 - A, G, C, T - A=T - G=-C (triple bond)33
7514123970RNA- ribose - -PO4 - A, G, C, U - A=U - G=-C (triple bond)34
7514133207Ground state- electron in lowest available energy level35
7514136706Excited State- atom absorbs energy36
7514140499Tracer- radioactive carbon used to track metabollic pathways37
7514144183Hydrolysis- opposite of a dehydration reaction38
7514158663Primary Protein Structure- from sequence of Amino acids39
7514161982Secondary Protein Structure- results from hydrogen bonding40
7514164681Tertiary Protein Structure- intricate 3D conformation - directly responsible for the way it functions and its specificity41
7514184622Quaternary Protein Structure- consists of more than 1 polypeptide chain42
7514211381SubstrateChemical enzyme works on43
7514217262Induced-fit modelDescribes how enzymes work44
7514219377prionsinfectious proteins that cause brain damage45
7514222424trace elements- essential but only in minute quantities46
7514228698Elements (#s)- 25 in humans - 92 natural47
7514238039Functional groups- affect molecules function by participating in chemical reactions - polar; hydrophobic except methyl48
7514250646Hydroxl group- -H+ bonded to O-; -OPH, alcohols49
7514259339Carbonyl group50
7514264092Carboxyl group51
7514269418Amino group52
7514273623Phosphate Group53
7514287477Methyl group54
7514291022macromolecules- smaller molecules joined in to chains by polymers - gigantic55
7514293962Phospholipids- major component of cell membranes - only contains 2 fatty acids = glycerol56
7514300505Steroids- Carbon skeleton containing 4 fused rings57
7514305822Denaturation- protein unravels, losing its specific shape and, as a result, its function58

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