AP Notes, Outlines, Study Guides, Vocabulary, Practice Exams and more!

BIOCHEMISTRY Flashcards

Terms : Hide Images
8976385734What is biochemistry?The branch of science concerned with the chemical and physico-chemical process and substances which occur within living organisms0
8976385735Most are important macromoleculesProteins, Lipids, Nucleic Acids and Polysaccharides1
8976385736Primary Structures of Nucleic AcidsOrganic Nitrogenous Base, Pentose Sugar and Phosphate Group2
8976385737Organic Nitrogenous BaseDerivation of Purine and Pyrimide3
8976385738PurineAdenine and Guanine4
8976385739Pentose SugarRibose (RNA) Deoxyribose (DNA)5
8976385740Phosphodiester Bond + Ester Bonds (Phosphorous)Nucleosides= Nitrogenous bases with a ribose Nucleotides= Nitrogenous bases w/ a ribose and a phosphate6
8976385741GenotypeThe genetic constitution of an individual organism7
8976385742Phenotypethe set of observable characteristics of an individual resulting from the interaction of its genotype with the environment.8
8976385743Amino AcidsOrganic Compound containing -COOH and a amino (-NH2) group End product of a protein9
8976385744Number of Standard Amino Acids2010
8976385745Non-Polar, Aliphatic residuesGlycine, Alanine, Valine, Leucine, Isoleucine, Proline11
8976385746Aromatic ResiduesPhenylanine, Tyrosine, Tryptophan12
8976385747Polar, Non-Charged ResiduesSerine, Theonine, Cysteine, Methionine, Asparagine, Glutamine13
8976385748Negatively Charged ResiduesAsparate, Glutamate14
8976385749Positively Charged ResiduesLysine, Arginine, Histidine15
8976385750Function of Nucleic AcidsStorage and Transmission of Biological Info16
8976385751PyramideCytosine, Thymine, Uracil17
8976385752Phosphodiester BondStrong Covalent bonds between a phosphate group and two 5-carbon ring carbohydrate (Pentose sugar) The backbone of DNA strands18
8976385753Secondary StructureSet of interactions between bases19
8976385754Watson-Crick Model Base pairsA-T G-C20
8976385755A-T pair (Watson-Crick Model)2 Hydrogen Bonds21
8976385756G-C pair (Watson-Crick Model)3 Hydrogen Bonds22
8976385757What does Secondary Structure do?Responsible for the shape that nucleic acid assumes23
8976385758Possible Models of ReplicationConservative Semi-Conservative Dispersive24
8976385759Conservative Model of Replication25
8976385760Semi-Conservative Model of Replication26
8976385761Dispersive Model of Replication27
8976385762Two major forms of polynucleotidesA and B28
8976385763Which form is DNA in?B form29
8976385764Alpha Form (Rotation per Residue (=360/n))33 Degrees30
8976385765Beta Form (Rotation per Residue (=360/n))36 Degrees31
8976385766Tertiary StructureThe three-dimensional shape of a nucleic acid polymer.32
8976385767Characteristic of Tertiary StructureLinear vs. Circular Relaxed vs. Supercoiled33
8976385768Conformation of Single-Stranded Nucleic AcidRandom Coil Stacked Base Structure Hairpin Formation34
8976385769Random CoilSingle Strand Flexibility of rotation No specific structure35
8976385770Stacked base structure (Single-Strand Helix)Single strand Bases stacks pull the chain into the helix NO H-Bonding36
8976385771Hairpin Formation (Double-Strand Helix)Double Stranded Chain folds back on itself to make stem loop structure Hydrogen bonds link the strands together37
8976385772HistonesProteins found in the nuclei which package the DNA into units called NUCLEOSOMES. They are the chief component of chromatin38
8976385773Role of HistonesActs as a poole which words the DNA and regulates the genes. W/o it the the DNA would unwound and be extremely long39
8976385774SolenoidsStructure of chromatin40
8976385775ChromosomesStructures located inside the nucleus. Made up of protein and a single DNA41
8976385776α-Amino acidA molecule containing an amino group and a carboxylic acid group that are separated by one carbon42
8976385777Zwitteriona molecule or ion having separate positively and negatively charged groups.43
8976385778Amphiphilichaving both hydrophilic and hydrophobic parts.44
8976385779L-Amino Acidsamino acids found in proteins during translation in the ribosome45
8976385780D-Amino Acidsproteins produced by enzyme posttranslational modifications after translation and translocation to the endoplasmic reticulum46
8976385781Quaternary StructureComplex of protein Molecules47
8976385782Stereoisomersisomers that differ only in how their atoms are oriented in space48
8976385783OligopeptideA few amino acids joined by peptide bonds.49
8976385784Polypeptidelong chain of amino acids that makes proteins50
8976385785ProteinA three dimensional polymer made of monomers of amino acids.51
8976385786Peptonea soluble protein formed in the early stage of protein breakdown during digestion.52
8976385787F(filamentous)-Proteininsoluble in water, weak acids and weak bases but soluble in strong acids and alkalis53
8976385788G(globular)-Proteinare soluble in water, acids and bases54
8976385789N-terminusthe start of a protein or polypeptide referring to the free amine group located at the end of a polypeptide55
8976385790C-Terminusthe end of an amino acid chain, terminated by a free carboxyl group.56
8976385791Peptide Bond (Amide Bond)covalent chemical bond linking two consecutive amino acid monomers along a peptide or protein chain57
8976385792Monomera molecule that can be bonded to other identical molecules to form a polymer.58
8976385793Polymera large molecule, or macromolecule, composed of many repeated subunits.59
8976385794Post-translational modification (PTM)the covalent and generally enzymatic modification of proteins during or after protein biosynthesis60
8976385795Lipidssubstances of biological origin that are soluble in nonpolar solvents.61
8976385796Function of LipidsEnergy Production Heat production Insulation62
8976385797Types of LipidsFatty Acids Fats (Triacylglycerols) Waxes Phospholipids (Diacylglycerol)63
8976385798Lipids in GeneralInsoluble molecules Form: Micelles, Vesicles, Bilayers64
8976385799Fatty AcidsConsist Hydrocarbon chain and a a terminal carboxyl group Contain one or more double bonds65
8976385800Cholesterolconsisting of four linked hydrocarbon rings forming the bulky steroid structure.66
8976385801Cis- Configurationa polar molecule67
8976385802Trans- Configurationa non-polar molecule68
8976385803Fats (Triacylglycerol)Trimester of Fatty acids long-term energy storage molecule in many organism69
8976385804Glycerol70
8976385805Fats (Triacylglycerol) BehaviorHydrogenation Fat Hardening71
8976385806Hydrogenation Fat HardeningConversion of liquid oils into semi-solid Changing the degree of saturation of the fat changes important physical properties (Melting range)72
8976385807WaxesLipid that is an ester of a long-chain alcohol and a fatty acid Made up of 12-32 carbon atoms73
8976385808Phospholipids (Diacylglycerol)component of all cell membrane Amphiphilic Most natural occurring fat74
8976385809Bilayer75
8976385810Monolayer76
8976385811Micelle77
8976385812Vesicles78
8976385813Liposome79
8976385814CarbohydrateChemical compound which contains oxygen, hydrogen and carbon. Also known as Saccharides Important storage and transport form of energy C₆H₁₂O₆80
8976385815Four Types of CarbohydratesMonosaccharides, Disaccharides, Oligosaccharides, Polysaccharides81
8976385816Monosaccharides1 monomer single sugar ex. Fructose, Glucose82
8976385817Disaccharides2 monomers 2 saccharides ex. Sucrose83
8976385818Oligosaccharides3-10 monomers linked to a.a or lipids ex. Raffinose84
8976385819Polysaccharides>10 monomers complex carbohydrates, w/ linear chains ex. Starch, Amylose, Cellulose85
8976385820Distinguishing Criteria of CarbohydratesConsist ONLY of carbon, hydrogen and oxygen Hydrogen/ Oxygen atom ratio 2:186
8976385821Three Different Characteristics of CarbohydratesPlacement of its carbonyl group Number of carbon atom it contains Its chirality (= asymmetric)87
8976385822CelluloseAn insoluble substance A polysaccharide consisting of chains of glucose monomers88
8976385823Chitina fibrous substance consisting of polysaccharides The major constituent in the exoskeleton of arthropods and the cell walls of fungi.89
8976385824GlycogenA substance deposited in bodily tissues as a store of carbohydrates. It is a polysaccharide which forms glucose on hydrolysis.90
8976385825StarchA polysaccharide which functions as a carbohydrate store and is an important constituent of the human diet.91
8976385826AldehydesA functional group with the structure −CHO, consisting of a carbonyl center with the carbon atom also bonded to hydrogen and to an R group, which is any generic alkyl or side chain92
8976385827Ketonesis an organic compound with the structure RCR', where R and R' can be a variety of carbon-containing substituents93
8976385828Fischer's Projectiona two-dimensional representation of a three-dimensional organic molecule94
8976385829Formaldehydea naturally occurring organic compound with the formula CH₂O.95
8976385830Glycolaldehydethe organic compound with the formula HOCH₂-CHO.96
8976385831Inositola chemical compound with formula C₆H₁₂O₆ or (-CHOH-)₆, a six-fold alcohol of cyclohexane97
8976385832Biochemistry of Carbohydrate4 Carbons98
8976385833Deoxyribosea sugar derived from ribose by replacement of a hydroxyl group by hydrogen.99
8976385834Function of CarbohydratesGenerating and Storing Biological Energy Molecular Recognition (Immune System) Cellular Protection (bacterial and plant cell wall) Cell Signaling Cell Adhesion Maintaining Biological Structure (Cellulose) Biological Lubricants100
8976385835Sugarany of the class of soluble, crystalline, typically sweet-tasting carbohydrates found in living tissues and exemplified by glucose and sucrose.101
8976385836NucleoSIDESNitrogenous base w/ ribose102
8976385837NucleoTIDESNitrogenous base, ribose and phosphate103
8976385838Adenine (DNA/RNA)104
8976385839Uracil (RNA)105
8976385840Guanine (DNA/RNA)106
8976385841Cytosine (DNA/RNA)107
8976385842Thymine (DNA)108
8976385843Types of TransportNon Mediated Transport Transport by Vesicles Mediated Transport109
8976385844Non Mediated TransportDiffusion110
8976385845Transport by Vesicles111
8976385846Mediated TransportFacilitated Transport (Ion Channels) Active Transport (ATP)112
8976385847Facilitated Transport (Ion Channels)113
8976385848Active Transport (ATP)114
8976385849The Role of Enzyme Chemical ReactionsSynthesis Decomposition Single Displacement Double Displacement115
8976385850Low Reaction Speed (Enzyme Chemical Reaction)A+B ==> A-B116
8976385851High Reaction Speed (Enzyme Chemical Reaction)A+B =(synthesis)=> A-B117
8976385852Roles of EnzymesRates Sufficient for life Selective for their Substance Most Enzymes are Proteins Assist in Catalysis118
8976385853Building Blocks for EnzymologySubstrates (S) Enzymes (E) Products (P)119
8976385854Cholesterol FunctionsBuild & Maintain Membranes Hormone Production Vitamin D Production Bile Production120
8976385855Lab Techniques for Protein AnalysePhotometry Electrophoresis Chromatography Bradford-assay Absorbance of wavelength121
8976385856PhotometryMeasurement of Light Shows Intensity of a beam of light after passing through a sample122
8976385857Chromatographytechnique for the separation of a mixture by passing it in solution or suspension through a medium in which the components move at different rates.123
8976385858Electrophoresistechnique in order to separate macromolecules based on size. The technique applies a negative charge so proteins move towards a positive charge. This is used for both DNA and RNA analysis.124
8976385859Bradford-Assayspectroscopic analytical procedure used to measure the concentration of protein in a solution125
8976385860Rosalind Franklin dates(1920-1958)126
8976385861Francis Crick(1916-2004)127
8976385862James Watson(1928- )128
8976385863TautomerizationA formal isomers of the nitrogenous based129
8976385864Enzyme inhibitionmolecule that binds to an enzyme and lowers its activity. (can kill pathogens or correct metabolic imbalances)130
8976385865Competitive inhibitionbinding of the inhibitor to the active site on the enzyme prevents binding of the substrate and vice-versa131
8976385866Non-competitive Inhibitionwhere the inhibitor reduces the activity of the enzyme and binds equally well to the enzyme whether or not it has already bounded to the substrate132
8976385867Uncompetitive InhibitionDoes not compete for the active site but affects the catalytic event133
8976385868Number of human genomes51134
8976385869Human chromosomes23 Pairs135
8976385870Replisomecomplex of enzymes work on replication of DNA136
8976385871Genomethe haploid set of chromosomes in a gamete or microorganism, or in each cell of a multicellular organism.137
8976385872Hormones in GeneralSignal Transduction Hormone Action Membrane Receptors138
8976385873Signal transductionInvolves cell to cell communication via: Neurotransmitters Hormones Growth factors Pheromones139
8976385874PheromonesChemical substance produced and released into the environment by an animal or insect affecting its physiology or behavior140
8976385875Hormone Actioninfluences and controls: Enzyme Activity Synthesis of specific proteins Membrane permeability to ions or small metabolites141
8976385876Membrane Receptorsincludes: proteins that influence second-messenger synthesis Ion channels Proteins with intrinsic enzyme activity142
8976385877What is a hormoneany member of a class of signaling molecules produced by glands in multicellular organisms that are transported by the circulatory system to target distant organs to regulate physiology and behaviour.143
8976385878SystemicGlands Hormones Nerves144
8976385879CellularNeurotransmission GPCR (G-protein coupled receptors)145
8976385880Classification of GlandsExocrine Gland Endocrine Gland146
8976385881Exocrine GlandExcretes its product mostly via ducts inside the body147
8976385882Endocrine GlandSignals target distant cells, secrets its product directly into the bloodstream or by diffusion148
8976385883Exocrine Gland (Diagram)149
8976385884Endocrine Gland (Diagram)150
8976385885Types of intercellular CommunicationDirect Indirect151
8976385886Direct Intercellular CommunicationGap Junctions152
8976385887Indirect Intercellular CommunicationAutocrine & Paracrine Secretion Neurotransmitter Secretion Neurohormone Secretion153
8976385888Autocrine & Paracrine Secretion154
8976385889Neurotransmitter Secretion155
8976385890Neurohormone Secretion156
8976385891JuxacrineSignals target adjacent (touching cells)157
8976385892Autocrinesignals are produced by the target cell, secreted and effect the target cell itself via receptors158
8976385893Paracrinesignals target cell in the vicinity of the emitting cell. NEUROTRANSMITTERS159
8976385894Lipophilictending to combine with or dissolve in lipids or fats160
8976385895Lipophobictending to repulse compounds therefore not soluble in lipids or other non-polar solvents.161

Need Help?

We hope your visit has been a productive one. If you're having any problems, or would like to give some feedback, we'd love to hear from you.

For general help, questions, and suggestions, try our dedicated support forums.

If you need to contact the Course-Notes.Org web experience team, please use our contact form.

Need Notes?

While we strive to provide the most comprehensive notes for as many high school textbooks as possible, there are certainly going to be some that we miss. Drop us a note and let us know which textbooks you need. Be sure to include which edition of the textbook you are using! If we see enough demand, we'll do whatever we can to get those notes up on the site for you!