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AP Biology Chapter 5 Flashcards

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8555349692macromoleculesmolecules of a large size0
8555360463polymermade up of monomers1
85553645794 main classes of molecules in living thingscarbohydrates, lipids, proteins, and nucleic acids2
8555368896monomersindividual pieces of a larger puzzle (polymer); some have a function of their own3
8555375986enzymesbiological catalysts that speed up chemical reactions but not used up in the process4
8555384799dehydration reactionsa reaction in which 2 molecules are covalently bonded to each other with the loss of a water molecule (1 molecule give a -OH and the other a -H) (synthesizing a polymer)5
8555394020polymerizationthe making of a polymer via dehydration6
8555414817hydrolysisreverse of dehydration reactions; the bond between monomers is broken by the addition of a water molecule with a H attaching to one monomer and the -OH attaching to the other: i.e. digestion (breaking down a polymer)7
8555437669Carbohydratesinclude sugars and starches (polymers of sugars)8
8555442968monosaccharidemade up of 1 sugar monomer, most common is glucose; used for a source of quick energy9
8555482656Identification of CarbohydratesRatio of C-1, H-2, O-110
8555490217Disaccharidesmolecule made of 2 sugars; i. e. Maltose and Sucrose11
8555497685glycosidic linkagecovalent bond formed between 2 monosaccharides by a dehydration reaction (p.69)12
8555505972Polysaccharidesmacromolecules, polymers with a few hundred to a few thousand monosaccharides joined by glycosidic linkages13
8555529161uses for polysaccharidesstorage for energy, and building material for cell structures14
8555538348starchpolysaccharide that is made up of glucose monomers in PLANTS; stored as granules in plastids (stored energy)15
8555550190glycogenpolysaccharide that is made up of glucose in ANIMALS; stored in liver and muscle cells (stored energy)16
8555642411cellulosestructural polysaccharide; major component of the tough walls of plant cells; most abundant organic compound on Earth17
8555650309Chitinstructural polysaccharide; major component of exoskeletons of arthropods (insects, spiders, crustaceans, and related animals)18
8555662152Lipidslarge biomolecules lacking in true monomers, not considered macromolecules; HYDROPHOBIC; major function - long term energy storage in adipose tissue19
8555690132fatmade up of glycerol and fatty acids20
8555692696fatty acidlong C skeleton usually 16-18 C atoms in length21
8555698048triacylglyceride3 fatty acids linked to one glycerol molecule22
8555707937Saturated fatscompound with no double bonds and is saturated with as many H bonded to C as possible; most are found in animal fat (lard and butter); very flexible23
8555721173Unsaturated fatshas one or more double bonds with one fewer H per double bond of C; found in plants and fish; (olive oil and cod liver oil); in nature, double bonds are cis24
8555830498trans fatwith trans double bonds; found in baked goods and processed foods; labeled and must be removed from food supply by 201825
8555857326phospholipidfound in cells as a major constituent in cell membranes; glycerol with 2 fatty acids; (glycerol head is hydrophilic and fatty acid tails are hydrophobic)26
8555878614steroidslipids with 4 fused rings in carbon skeleton27
8555897385cholesteroltype of steroid; common component of animal cell membranes and is also a precursor for other steroids such as sex hormones (estrogen and progesterone)28
8555909309proteinsaccount for more than 50% of dry mass of most cells and they are instrumental in almost everything organisms do; made of one or more polypeptides each folded and coiled into a specific 3D structure29
8555949136polypeptidepolymer of amino acids30
8555918264biological catalysts(enzymes) chemical agents that selectively speed up chemical reactions without being consumed in the reaction31
8555931898amino acidsmonomers of proteins joined together by peptide bonds; 20 make up all the proteins; made up of an amine group and a carboxyl group, and a R group (side chain)32
8555991067enzymatic proteinsselective acceleration of chemical reactions33
8555992708storage proteinsstorage of amino acids34
8555995128hormonal proteinscoordination of an organisms activities35
8555998838contractile and motor proteinsmovement36
8555998840defensive proteinsprotection against disease37
8556000705transport proteinstransport of substances38
8556002067receptor proteinsresponse of cell to chemical stimuli39
8556004042structural proteinssupport40
8556013486peptide bondbond between amino acids in the formation of proteins41
8556021865protein naturestructure determines function42
85560262914 levels of protein structureprimary, secondary, tertiary, quaternary43
8556030556primary protein structurelinear chain of amino acids44
8556040250secondary protein structureregions stabilized by H bonds between atoms of the polypeptide backbone; alpha helix and the beta pleated sheet45
8556047027tertiary protein structure3D shape stabilized by interactions between side chains; hydrophobic interaction; disulfide bridges46
8556060714quaternary protein structureassociation of two or more polypeptides (some proteins only) i.e. collagen and hemoglobin47
8556316471denaturationphysical and/or chemical conditions that cause the protein to change shape, therefore, reducing or ending functionality of the protein48
8556326298physical/chemical conditions of denaturationpH change, temperature change, salt concentration change (other aspects of protein environment)49
8556340035renaturationthe ability of a protein to restore innate structure if the denatured protein remains dissolved; conditional50
8556350242xray chrystallographymethod used to determine the 3D structure of a protein and it depends on the diffraction of an xray beam by the atoms of a crystallized molecule51
8556363393intrinsically disordered proteinsmay account for 20-30% of mammalian proteins; do not have a specific shape until they react with a target tissue52
8556382534geneunit of inheritance53
8556383735nucleic acidspolymers made of monomers, nucleotides54
8556386170nucleotidesmonomer made up of a 5 C sugar, Phosphate group, and a nitrogen base55
8556389132deoxyribonucleic acidDNA; genetic material inherited by parents56
8556395695ribonucleic acidRNA; synthesized by DNA; allows for gene expression to take place57
8556397572gene expressionDNA controls its own replication and directs RNA synthesis and controls protein synthesis; these 3 components make up gene expression; DNA -> RNA-> Proteins58
8556423370pyrimidinefamily of N base - Cytosine, Thymine, Uracil - that has one six membered ring of Carbon and nitrogen atoms59
8556437944purinesfamily of N base - Adenine and Guanine - they have a six membered ring fused to a five membered ring60
8556447673deoxyribose5 carbon sugar in DNA61
8556450907ribose5 carbon sugar in RNA62
8556466892Nucleotide polymersmade up of sugar-phosphate backbone with nitrogen base appendages read from the 5' end to the 3' end63
85564776055' Carbon on the sugarattached to a phosphate group64
85564985713' Carbon on the sugarattached to a hydroxyl group65
8556582130double helix2 strands of DNA wound around an imaginary axis66
8556584508antiparallelone side of the double helix is from 5' to 3' and the complementary side is 3' to 5'67
8556590843base pairingA - T; G - C in DNA. A-U; G-C in RNA68
8556598361DNA sequencingdetermining the sequence of nucleotides along the DNA strand69
8556604652bioinformaticsthe use of computer software and other computational tools that can handle and analyze these large data sets70
8556607066genomicswhen biologists analyze large sets of genes or even whole genomes of different species to address problems71
8556612388proteomicssimilar to genomics instead of looking at datasets of genes, scientists look at datasets of proteins to solve a problem72
8556618312molecular geneologylooking at the concept of evolutionary development using genetic evaluations and DNA sequencing73
8556630940nucleoside5 Carbon + N base74

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