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Biochemistry Flashcards

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8603529513DNA, proteins, lipids, carbohydrates4 main components of the cell0
8603536559human bodythe _____________ is mostly made up of oxygen, carbon, nitrogen and hydrogen1
8603538273energetically stableValence electrons bond with other valence electrons to become ________2
8603544536covalent bondA chemical bond that involves sharing a pair of electrons between atoms in a molecule -very strong -forms from nonmetals and some metalloids3
8603549487organic moleculescarbon based molecules4
8603552223double bondA covalent bond in which two pairs of electrons are shared between two atoms -much stronger than a single bond5
8603613944electrostatic interactionsan attraction or repulsion that occurs between charged particles -distant dependent6
8603639357non covalent bondsionic/Hydrogen/Van Der Waals/Hydrophobic interactions/electrostatic attractions -weak bonds; molecules organized into three-dimensional structures7
8603641396hydrogen bondsweak attraction between a hydrogen atom and another atom -40x weaker than covalent -gives water its fluid nature the strongest type of vanderwaal foce8
8603652495van der Waal bond-80x weaker than covalent bond -3 kinds: london dispersal, dipole/polar, and hydrogen9
8633597469London dispersion foceweakest van der waal force, has lowest boiling temp -electrons are constantly moving around atom so it creates a momentary very slight charge on one side of the atom10
8633604388polar bond (dipole bond)van der waals forces, stronger than london, weaker than hydrogen. When one atom is more electronegative than another it hogs the electrons and has a slight negative charge11
8633704210electric dipolea separation of equal and opposite charge by a small distance; can be seen in polar molecules.12
8633715571electrostatic forcethe attraction between two molecules' protons and electrons, molecules come close enough together that the attraction and repulsion forces cancel each other out13
8633727076bond lengthdistance between two nuclei at the point of minimum energy wherer the attracting and repulsing forces cancel each other out14
8633734507electronegativityability of an atom to attract/hog its shared electrons, this causes polarity -if one atom is more electronegative than another it causes "unfair" sharing15
8633766597polar covalent bonda covalent bond in which the 2 atoms have different electronegativities, causing a seperation of charges ex: water16
8633814329non polar covalent bondcovalent bond in which the 2 atoms have identical or very similar electronegativities, so electrons are distributed/shared evenly17
8633828164ionic bondsformed by the transfer of electrons from one atom to another -form from metals -tend to form crystal structures and are soluble in water18
8633848171waterone molecule can form 4 hydrogen bonds, giving its fluid like nature -makes up 40% of our mass -polar -other polar molecules can dissociate in it19
8633860153solubilizationpolar molecules can dissacociate in water20
8633864677polarMolecule with partial charges. Mixes with water. -hydrophilic -stable in water21
8633880642non polar________ molecules do not disacossiate in water, they are energetically unstable in water, try to combat this by coming together when in water -uncharged -hydrophobic22
8633908597amphiaticboth polar and nonpolar. Stable in polar and non polar environments -ex: proteins (outside is hydrophillic, inside is hydrophobic23
8633914757macromoleculesA very large organic molecule composed of many smaller molecules 4 main ones: nucleic acids (RNA, DNA), proteins (amino acids), carbohydrates (sugars), lipids -they store, carry information, and bring structural integrity to the cell24
8633928278Gregor Mendel-established genetics in 1866 -a monk -looked at inheritence in pea plants -noticed a pattern of inheritance25
8633933778Friedrich Miescher-Swiss biochemist -1869 -isolated DNA from pus from used bandagges -found that DNA had lots of nitrogen and phosphorus -believed DNA was used for storage26
8633947657chromosomesTheodor Boveri and Walter Sutton in the 1890s and 1902 identified that _______________ were responsible for traits being passed down through generations27
8633950571DNA________ was determined to be a component of chromosome in 1914 by Robert Feulgen, but it was deemed to be too simple to be genetic material28
8633957244Phoebus Levenefound that DNA consists of nitrogenous bases which are covalently linked to a deoxyribose sugar molecule and phosphate between 1909-191929
8633970462Fred GriffithFound that something in the cell passes on genetic traits in 1928 -transforming principle30
8633975623transforming principlemystery material that caused mice to die when they were injected with heat-killed S and R bacteria -later found to be DNA31
8633982046DNAAvery, Macleod and McCarty repeated Griffiths experiments and found that ___________ caused the transformation. The identified the function of _________ to be heredity material32
8633997725Photo 51photo taken of the top of DNA by Rosalind Franklin that led to Watson and Crick's discovery of the shape33
8634000457double helixIn the mid 1900's Crick, Watson and Wilkins found DNA's ____________ shape -awarded nobel prize in 196234
8634006650Chargaff____________'s rules stated that adenosine and thymine, and cytosine and guanine must be paired together. -The individual responsible for discovering the base pairing rules for DNA. -calculated that the amount of C was equal to the amount of G and that the amount of A was equal to T35
8634017301Pyrimidine basesCytosine, thymine, and uracil36
8634019600Purine basesadenine and guanine37
8634031712hydrophillicthe phosphates (yellow circles) in DNA are located at the surface exterior because they are _________ so it is energenically favourable for them to be exposed to the polar environment of the cell38
8634048514chromosomesevery human cell has 22 _________ and 2 copies (diploid), other than the x and y chromosomes which have one copy39
8634125532helicasean enzyme that breaks the hydrogen bonds between the DNA base pairs to seperate DNA into two strands, each strand is then used as a template for replication, resulting in two double helixes40
8634146992topoisomerase"quality control" controls unwinding and winding of DNA, regulates the tork applied -an enzyme -corrects "overwinding" ahead of replication forks by breaking, swiveling, and rejoining DNA strands41
8634151615ciprofloxacin-antibody for respiratory infection42
8634163358dNTP (Deoxynucleotide Triphosphate. )These are the four nucleotides that make up DNA. -organized as a double helix of two antiparrallel complementary strands43
8634168268central dogmatheory that states that, in cells, information only flows from DNA to RNA to proteins -describes the flow of genetic information44
8634169733RnaA single-stranded nucleic acid that passes along genetic messages45
8769570010RNA transcriptionDNA is unwound, RNA polymerase creates messenger RNA (Uracil not thymine). mRNA is single stranded and way less stable and has a shorter half life. -the copying of DNA into RNA46
8769581958riboseSugar in RNA47
8769588574thymineUracil in RNA replaces _______ in DNA48
8769597671tRNAtype of RNA that carries each amino acid to a ribosome during protein synthesis49
8769605393reading framethe way a cell's mRNA-translating machinery groups the mRNA nucleotides into codons -if incorrect, leads to mutations50
8769615441mRNAthe template for protein synthesis, tRNA reads this sequence51
8769619562codonthree-nucleotide sequence on messenger RNA that codes for a single amino acid52
8769623491ribosomeduring translation, the _________ brings mRNA and tRNA together. Attaches amino acids together to form a polypeptide chain -allows the protein to be built in the correct order53
8769632214carbohydrateshumans can't make many ___________, so they rely on phototrophs and autotrophs -___________ are made during photosynthesis54
8769662676chitinan example of how carbohydrates provide structure. Makes up the exoskeleton of crabs55
8769669483monosaccharidesbuilding blocks of carbohydrates -glucose, fructose, galactose -always have a keytone or aldehide, and has to have two or more hydroxyl groups56
8769681425ribosean example of a monosaccharide -OH on carbon 257
8769692232deoxyriboseexample of a monosaccharide -H on carbon 258
8769720308ketone59
8769724977aldehyde60
8769729223cyclicthe ________ form of carbohydrates with more than three carbons is the most common61
8769735443alpha linkage62
8769737527beta linkage63
8769756086monosaccharide(C-H2O)n64
8769763313glycosidic bondbond formed by a dehydration reaction between two monosaccharides -bonds of dissaccharides65
8769775754carbonsdissaccharide linkages can occur between any two _________, so lots of diversity -many linkage possibilities66
8769784236lactose67
8769787674maltoseglucose + glucose68
8770186028lactosemakes up to 8% of mammalian milk -a carbohydrate (sugar)69
8770203357wheywatery part of milk -contains lactose -a byproduct of cheese -a protein -used as a stabilizer in pharmacuticals -in lots of things, makes it hard for people to remove lactose from their diet70
8770231319lactase (beta galactosidase)Enzyme that is required to catabolize lactose -people who are lactose intolerant lack this enzyme, so they cannot break the linkage between galactose and glucose -produced in small intestine (microvilli) -once babies are able to eat solids, production reduces greatly71
8770265540lactose intolerancethe inability to completely digest the milk sugar lactose -people who have this do not produce lactase, and their immune system may treat lactose as an invading body, or bacteria may eat the lactose and produce methane and hydrogen gas72
8770287168starchpolysaccharide with some branching73
8770303517glycogenpolysaccharide with lots of branching74
8770306270cellulosepolysaccharide with no branching (crystallized)75
8770310019branchingadditional linkages in polysaccharides, leads to 3D structures76
8770314025polysaccharideslarge macromolecules formed from monosaccharides -glycogen, starch, cellulose -all three are made from just glucose, but are different due to their linkages77
8770322877cellulosepolysaccharide with a high tensile strength (due to beta linkages), important as they make up plant cell walls -its crystal structure makes it hard to break down with cellular machinery78
8770344475starch (and glycogen)polysaccharide which forms a hollow helix for accessibilty (due to alpha linkages), glucose is exposed and easy to break down79
8770369354alpha 1-4linkage of starch and glycogen polysaccharides80
8770370951beta 1-4linkage of cellulose polysaccharide81
8770376066glycoproteinA protein with one or more carbohydrates covalently attached to it. -are the antigens in blood groups82
8770385601blood typedependent on the sugars (glycoproteins/antigens) attached to red blood cells83
8770398626Ablood type ___ has A antigens and B antibodies84
8770429081Oblood type ___ has no antigens but has antibodies from A and B -universal donor85
8770432751ABblood type ____ has no antibodies and AB antigens -universal recipient86
8770464863antigensin blood groups, ______ do not recognize "self" molecules, will bind to "non-self" molecules and induce immune response -are glycoproteins -are two kinds: A and B. Can either have one or the other, both (AB) or none (O)87
8770525499universal recipientBlood group AB are known as __________ because they have both A and B antigens and therefore no antibodies88
8770537988universal donorBlood group O is known as the _______ because they have no antigens, so they have both A and B antibodies, meaning they can only accept other O blood, but will not be detected as foreign in any other blood type89
8770559190storagestarch and glycogen are known as ________ moleucles90
8770561283structuralcellulose is known as a _________ molecule91
8770577052lipid-diverse macromolecule -generally hydrophobic, water-insoluble, organic -more soluble in nonpolar solvents than in polar solvents such as water -examples: fatty acides, triglycerides, phospholipids, steroids92
8770600935glycobiologystudy of the synthesis and structure of carbohydrates and how they are attached to proteins -explore the biological roles of carbohydrates/ glycans on cell surfaces93
8770609010sweet wineglucose is greek for....94
8770615586chloroplastsafter produced in photosynthesis, glucose is stored in plant _________ as transient (short time) starch95
8770640686glucose96
8770655617sucrosetable sugar, disaccharide -derived from sugar cane, beets -Mexican coca-cola uses this, Canadian coca-cola uses high fructose corn syrup97
8770664311sucraseenzyme that breaks down sucrose98
8770712374high fructose corn syrupCheaper than sucrose -a sweetener made from corn starch that has been processed by glucose isomerase to convert some of its glucose into fructose. - a mixture of glucose/fructose -42= 42% fructose -55= 55% fructose99
8770752076sucroseglucose + fructose100
8770768765cellulose, chitin, amylosethree most abundant natural homopolymers101
8770771208homopolymerA polymer having a chain structure in which all repeat units are of the same type.102
8770779733celluloseSince it is made by all plants, it is probably the most abundant organic compound on Earth. -2000 times the weight of all humans103
8770812547Chitinmainly in marine environment -Polysaccharide found in arthropod exoskeletons and fungal cell walls. A structural polysaccharide found in many fungal cell walls and in the exoskeletons of arthropods. -dietary supplement for sore joints (when broken down into monosaccharides) -used to heal wounds (when left in a polymer)104
8770973808lipidsvery compactful fuel reserve, have twice amount of energy compared to carbohydrates per gram105
8771004120fatty acidschains of carbon atoms bonded to hydrogen atoms -breaks down to release energy -lipids -released from fats -no charge, non polar -unsaturated=double bonds, less hydrogens, liquid at room temp106
8771019915glycolipidsMembrane carbohydrates that are covalently bonded to lipids. -spontaneously self-seal into bilayers in aqueous solutions107
8771029692steroidslipids characterized by a carbon skeleton consisting of four fused rings -cell signaling108
8771035986cell signalingThe process of cell-to-cell communication mediated by signaling molecules and membrane receptors -steroid horomones do this109
8771038721adipose tissuesTechnical term for fat; gives smoothness and contour to the body. -lipid -cushions organs -thermal insulation: decreases thermal conductivity of body coverings110
8771064881chitosanpolysaccharide derived from chitin -an edible film that can reduce fat and serve as a joint supplement and prevent microbial growth -heals wounds111
8771070662amyloseunbranched form of starch, connected by alpha 1-4 linkages -starch provides 50-70% of dietary calories (directly or indirectly) -embedded into emylopectin and packed into granules, we do not know how biosynthesis begins112
8771086164amylopectinbranched form of starch, connected by alpha 1-6 linkages -branches every approx.24-30 residues, glycogen branches every 10 residues113
87711216712050By _______ we will not have enough food to feed the planet due to the increased need fir cereal and meat114
8771177334delphinidinis an anthocyanidin, a primary plant pigment, and also an antioxidant. _________ gives blue hues to flowers in the genera Viola and Delphinium. -a carbohydrate115
8771185030hoodia-diet pill, apetite suppresent -carbohydrate116
8771196527genomicsstudy of whole genomes, including genes and their functions -about DNA and RNA117
8771198820proteonomicsstudy of proteins -about proteins produced by DNA and RNA and their amino acids118
8771202588glycomicsthe analysis of the carbohydrates of a cell or tissue -about 9 monosaccharides -not very popular, does not get funded much money119
87712198606144a trisaccharide has _________ possible combinations of linkages120
8771243496lainechemist who created a formula to estimate the number of monosaccharides in a linear pentasaccharide121
8771263072glycosyltransferasesEnzymes that add sugars are specific for the type of monosaccharide, the position to which the monosaccharide is transferred and the linkage that is formed Glycome size is determined by ___________ (Humans have 250 enzymes ) -enzyme that adds specific monosaccharides to the growing end of an oligosaccharide122
8771268648glycometotal set of sugars and glycans in a cell or organism123
8771280243pneumoniainflammation of the lungs -vaccines are based on polysaccharides on outside of cell124
8771288095prevnar 13vaccine against 13 most common pneumococcal bacteria125
8771291758Pneumovax 23vaccine against 23 types of pneumococcal bacteria126
8771292995glycocalycesgelatinous, sticky substance surrounding the outside of the cell -pneumonia has this127
8771561916gastritis (helicobacter pylori)inflammation of the lining of the stomach. It may occur as a short episode or may be of a long duration. -stomach ulcers -Molecular mimicry of human blood groups on its glycocalyx Evades host immune system128
8771578086tuberculosis (mycobacteria tuberculosis)obligate pathogenic bacterial species in the family Mycobacteriaceae and the causative agent of tuberculosis. First discovered in 1882 by Robert Koch, M. tuberculosis has an unusual, waxy coating on its cell surface primarily due to the presence of mycolic acid. -glycocalyx Impermeable to drugs129
8771592970glycanrepeating chains of sugar that make up peptidogylcan -10 sugar monomers make up these chains130
8771596328peptidoglycanA protein-carbohydrate compound that makes the cell walls of bacteria rigid, made up of glycans131
8771609378norovirusa contagious gastrointestinal illness -fecal-oral route. contaminated water and swimming pools -700 passengers ill on carnival liberty -carbohydrate -binds to ABO (all) blood groups, so very infectous132
8771617811cholera toxinan enterotoxin that triggers an unrelenting loss of fluid -binds to cell surface glycolipid -200,000-500,000 cases/year, 20-50% mortality133
8771622619ErythropoietinA hormonal substance that is formed especially in the kidney and stimulates red blood cell formation -40% carbohydrate, rest is protein -given to chemo patients, as they are often anemic134
8771633417lectinsplasma proteins that bind to carbohydrates -found in inflammation -plants have these -facilitate cell to cell interactions and binding135
8771640818L selectinA molecule on lymphocytes - induces rolling of lymphocytes -lectin -binds to endothelial cells of lymph node at sites of injury, inhibition of binding is an antiinflammatory target136
8771658359ricin-lectin in castor plant seeds -toxic, causes cells to lump then lyse137
8771664375hemagglutinina lectin -a protein that binds a specififc carbohydrate on human cell surface, definition of viruses -targets sialic acid on host, influenza virus replicates in the cell138
8771694363unsaturated fatty acida fatty acid whose hydrocarbon chain contains one or more double bonds -omega 3, 6, 9 -liquid at room temp139
8771696291triglyceride-efficient at storing, much more effective than carbohydrates (9kcal/g compared to 4kcal/g) -anhydrous, does not take on water like carbohydrates -6-7 more times energy than glycogen -storage form of fatty acids140
8771728004phospholipid-constructed from 2 fatty acids, a glycerol(or sphingosine), a phosphate, and an alcohol -both hydrophobic (uncharged tails) and hydrophilic (charged head) -spontaneously form bilayers141
8771740292amphipathic (amphiphilic)having both hydrophilic and hydrophobic parts.142
8771749508phosphoglyceridephospholipids with a glycerol backbone -most common phospholipids143
8771758407sphingomyelin-a phospholipid with a sphingosine backbone - especially common in nerve cells144
8771779174phospholipid bilayer-spontaneously forms -hydrophobic molecules will bind inside the ________, hydrophilic molecules bind to the outside (ex carbohydrate chain) -bring in nutrients and salts, discard wastes, allows cell to cell communications, localizes proteins145
8771811478amino acidproteins are linear polymers of _________ -monomers, building blocks -20 different ones146
8771821715R groups-20 different ________ invloved in protein synthesis -2 groups: non polar (hydrophobic, uncharged) and polar (hydrophilic, charged or uncharged)147
8771840003primary structure-a sequence of amino acids, covalently linked by peptide bonds148
8771845841peptide bondcarboxyl and amino groups meet, a dehyration reaction occurs where the water is removed -holds together proteins149
8771855506intramolecular interactionsrefers to interactions and bonds which result in the secondary structure of a protein -disulfide (covalent), hydrogen, ionic and van der walls bonds150
8771858772disulfide bondcovalent bond formed within a polypeptide between sulfide groups of sulfur-containing amino acids -strong -defines antibodies structure151
8771870953secondary structureevery protein has this -level of protein structure consisting of beta pleated sheets and alpha helices152
8771875035tertiary structuresecondary structures of proteins interact with each other to form ___________153
8771883376quaternary structurewhen two or more tertiary structures associate, a final functional protein154
8771888447misfoldedproteins that are __________ have the same sequence of amino acids but the wrong structue -can be fatal155
8771900127silkproteins provide structure in spider ______156
8771902156antibody-protein, provides protection -in immune system -connected by disulfide bonds157
8771903837haemoglobinprotein that provides transport of oxygen, and the pick up of carbon dioxide158
8771912033enzymes_______, such as lactase, are proteins -speed up reactions159
8771913413insulina protein whose function is to communicate -Hormone produced by the pancreas that helps to decrease blood sugar.160
8771915858contractileactin and myosin are _______ proteins161
8771916640ferritinstorage form of iron -a storage protein (stores nutrients, not energy)162
8778210108statisticsa mathematical science 2 kinds: experimental (used a lot in science, manipulation) and observational (ex:climate change, no manipulation)163
8778223880Nsample size -a small sample size means that data can be skewed, larger group normalizes data164
8778277918Indian Journal of Dermatologypublished a paper on plagarism which had been plagarised from an Iranian graduate school -Retracted March 2015165
8778289277scientific designa series of steps undertaken to test a hypothesis166
8778301874observationfirst step of scientific design167
8778310456independent variablevariable that is changed168
8778312854dependent variablevariable that is observed169
8778317393develop hypothesisscientific design step 2170
8778330274independentthe ________________ variable of the guinea pig doctor was the presence of the bacteria h.pylori171
8778339232dependentthe ________________ dependent variable of the guinea pig doctor was the presence of gastritis/stomach ulcers172
8778344387collect datathird step of scientific design173
8778357707controlled variable (control group)what is maintained in an experiment174
8778370999retest hypothesis (happens many times)fourth step of scientific design175
8778381281metabolismall of the chemical reactions occuring in a cell176
8778409259catabolismthe breaking down of materials-energy is generated177
8778413505anabolismthe building of large macromolecules from small precursors-uses energy -ex: formation of DNA, carbohydrates, lipids, proteins178
8778428608phototrophtransforms sunlight into chemical energy179
8778431171chemotrophgains energy from food180
8778434109metabolic pathwaysseries of linked, enzymatically controlled chemical reactions -all are interconnected, relies on good communication181
8778442618ATPthe universal currency of the cell -is produced by fats or carbohydrates182
8778453420ADPadenosine diphosphate; molecule that ATP becomes when it gives up one of its three phosphate groups -low-energy molecule that can be converted to ATP183
8778478130AMPATP minus two phosphates -least amount of energy stored184
8778506100energyActive organisms need _______ to move, for active transport (immune system, circulation), and sythesis (DNA, carbohydrates)185
8778564168ATPsynthasean enzyme used in the electron transport chain that links a phosphate to ADP to form ATP, this reaction occurs to STORE energy -ATP-ADP cycle186
8778579686ATPasethe enzyme that causes ATP to lose a phosphate, takes away a phosphate to form ADP to RELEASE energy187
8778600087cellular respirationthe metabolic processes which converts glucose to ATP -2 kinds: aerobic, anarobic188
8778607297glycolosisMetabolic pathway that converts glucose (6C) into 2x pyruvate (3C), initiates cellular respiration -creates two ATP -in anaerobic: pyruvate is fermented to produce alcohol and latic acid -in aerobic, pyruvate creates Acetyl COA and CO2189
877863072130aerobic cellular respiration produces about ________ more ATP than anaerobic does190
8778657341Acetyl CoAfats , polysaccharides and proteins all are converted to this, it is the starting point of the citric acid cycle -will not enter citric acid cycle without oxaloacetate191
8778686542Pyruvate dehydrogenase complex (PDH)is a complex of three enzymes that converts pyruvate into acetyl-CoA by a process called pyruvate decarboxylation. -Converts pyruvate to acetyl-CoA by removing CO2192
8778701120citric acid cycleCompletes the breakdown of glucose by oxidizing a derivative of pyruvate to carbon dioxide. -The major degradative pathway for generation of ATP -makes reduction power molecules to get fed into the electron transport chain, which relies on oxygen193
8778721838glycolosisthe process that beings to oxidate glucose to prepare it for the rest of cellular respiration -produces 2 pyruvates and 2 ATP194
8778739852thiamine pyrophosphatecoenzyme required by pyruvate dehydrogenase -without this present, cellular respiration will not occur -Also Vitamin B1195
8778753816beriberithiamin pyrophosphate deficiency -common in third world countries and alcoholics -leads to heart disease, arsenic and mercury binds here instead and causes arsenic and mercury poisening -"mad hatters"196
8778793534pyruvateIn the catabolism of fats, there is a direct production of acetyl CoA, due to no glycolosis, this means no __________ is produced197
8778811677citric acid cycleproduces NADH, FADH2 and GTP which can all be used to produce about 30 additonal ATP -acetyl CoA enters as a shuttle molecule, brings in carbon, carbon dioxide and NADH is reduced by adding a hydrogen, this is converted into aTP198
8778835715GTPproduced in the citric acid cycle. A form of energy, only used in dire situations, when the body is energy starved199
8778847255gluconeogenesisthe formation of glucose from pyruvate -while glycolysis builds up ATP, _______ stores ATP, both are facilitated by the same enzyme200
8778891045diabetes 1lack of insulin -due to genetics or an unknown trigger -immune system stops pancreas from producing insulin -an autoimmune disease201
8778895106diabetes 2too little insulin or cannot use it effectively -high blood sugar, insulin resistanceglut202
8778914863oxaloacetateis produced from glucose via pyruvate -reacts with acetyl CoA to produce citrate -without insulin, this is not produced -precurser of citric acid cycle203
8778949960ketone bodieswhen there is no oxaloacetate in the citric acid cycle, acetyl CoA (made from protein and fats) is converted to ________ -when they go into citric acid cycle to produce ATP, they drop blood pH which results in coma and death -acetyl CoA interacts with itself204
8778993582diabetic ketosisa serious condition that can lead to diabetic coma (passing out for a long time) or even death. When your cells don't get the glucose they need for energy, your body begins to burn fat for energy, which produces ketones and lowers blood pH205
87810945043every ____ minutes another Canadian is diagnosed with diabetes206
878111077529percentage of Canadians currrently living with diabetes or prediabetes -Will rise to 33% by 2025207
87811193031___ in 10 deaths in Canadian adults was attributable to diabetes in 2008-2009208
87811303133.4_____ million Canadians are estimated to be living with diabetes209
878113471714diabetes is costing the country ____ billion dollars per year -in 10 years it will rise to 17.5210
8782539339citric acid cycletakes products of glycolysis (pyruvate) and transforms them into into NADH211
8782553927electron transport chain (oxidative phosphorous chain)produces lots of ATP -series of complexes that transfer electrons from electron donors to electron acceptors via redox212
878257786980people over 35 years old with a BMI higher than 30 are ______ times more likely to develop diabetes than someone with a BMI of 22213
8782585929insulinprotein maintains glucose levels in the blood, produced by the beta cells of the pancrease -released into blood when glucose levels rise214
8782601526pancreaswhere is insulin produced?215
8782629974glut4 (glucose transporter)brings glucose into the cell -a protein -is triggered by insulin -permits the facilitated diffusion of circulating glucose down its concentration gradient into muscle and fat cells.216
8782652862increasing_________ glucose levels trigger production of insulin in pancreas which signals for Glut4 to be transported tocell surface217
8782666111glycogen synthaseenzyme responsible for converting glucose into glycogen -protein -turned on after a meal when glucose levels are high218
8782691178OGTT (oral glucose tolerance test)patients fast and then has a glucose blood test. Then has a drink with lots of glucose and has another blood test 2 hours later. Normal peoples blood sugar will peak and then drop, diabetics will spike and not drop219
8782716567obesitystate of nutrient excess and creates chronically Ac;vated cellular growth factor signaling • Leads to insulin resistance and Diabetes -lots of adipose tissue, which disregulates biochemical process which affects insulin220
8782758462glucagon-protein horomone is released from the pancrease to stimulate glucose production when there are low glucose levels -moves glucose into the blood221
8782766041lactateis produced by muscles from anaerobic fermentation and can be converted to glucose by the liver222
8782790938liverin fasting conditions or in diabetics fatty acids (acetyl CoA0 is broken down in the ______ to produce ketone bodies, which are used for energy from heart and brain223
8782796426metformina drug for type 2 diabetes that promotes glucose uptake and uncreases insulin sensitivity -helps obese people control weight224
8782826372proteolytic enzymebreaks down proteins into amino acids when there is no glucose available for energy225
8782837690aminopeptidasefurther breakdown (after proteolytic enzyme) of proteins, puts amino acids into gastric cycle -peptidases is another enzyme which does this226
8782864522nitrogenbreaking down proteins for energy is unsustainable, as they cannot feul the entire body.Breaking apart amino groups leaves a lot of _______ which is excreted through the urea cycle227
8782903475heart diseasedue to being hydrophobic and anhydrous, too many triglycerides in the circulatory system causes clumping which leads to ________228
8782927968cholesterol-lipid -makes horomones (ex: Vitamin d, sex horomones, secondary sex characterisitics) -we have access from eating animal products -hydrophobic, so cannot travel in blood stream unaccompanied, transported by proteins229
8782944844low density lipoproteins-the bad cholestoral, transports cholesterol to sites throughout the body, to many of these lead to heart disease230
8782956792high density lipoproteins-the good cholesterol transports cholesterol from sites in the body to the liver, where it is broken down231
8782978300vitamin Dproduced by cholesterol, obtained from oily fish, red meat or eggs in the winter time -ultraviolet light (sunlight) is needed to produce this232
8782985757ricketsbone disease caused by vitamin D deficiency in children in England 17th century -due to lack of sun, and not enough oily fish, red meat and eggs in diet -treatment/prevention: Cod liver oil233
8783353621metabolic syndromeAKA insulin resistence, prediabetes Risk factors: • Increased blood pressure • High blood sugar • Excess body fat around waist • Abnormal cholesterol or triglyceride levels these factors increase risk of heart disease and type 2 diabetes234
87833714111 in 5_____ people have metabolic syndrome in canada235
8783386811fructosea monosaccharide that can be absorbed directly into the blood during digestion -fruit sugar -added to food and drinks and baked goods (for browning)236
8783408076fructoseincreases triglycerides in diet, leading to metabolic syndrome -also leads to an increased amount of glucose in blood, but a decrease in ability to use insulin237
8783457235p13 kinasea protein, enzyme -critical in insulin signalling -mutated in breast and ovarian cancer -obesity may cause pre cancerous tumours -mobilizes aldolase, increases glycolysis and glucose uptake238
8783486648aldolasekey protein in the glycolysis pathway that is involved in the staging of glucose for energy extraction -converts glucose to pyruvate239
8783507529cancer cellsuse protein as energy source -high metabolic demand, take in a lot of glucose, allows us to use PET scans to identify them by (a glucose analog), shows radiation240
8783534426celiacs diseaseautoimmune disorder -response to eating gluten in small intestine -often begins within first two years of life -associated with diabetes 1 -body sends out antibodies after gluten, this shortens the villi on small intestine -leads to anaemia, body can't absorb food -may be due to mutation in HLA-DQ or a gastric infection241
8783540543glutena protein found in wheat, barley and rye242
8783595212AAS (anabolic androgenic steroids)synthetic version of testosterone -men take it to build muscle and increase male secondary sex characteristics -increases actin and myosin production, must work out to convert protein to muscle243
8783672094prion diseasea disease caused by an abnormal protein particle that infects brain tissue -deadly infection from a misfolded protein, eaten through animal products244
8783807493catabolism_______ is oxidative -oxidative is any chemical reaction in which a material gives up electrons, as when the material combines with oxygen. (ex:fire)245
8785064487glycolysisNADH, pyruvate and ATP are the products of ______246
8785177365liverthe _____ regulates blood glucose247

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