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Biochemistry Flashcards

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5147036706Amino acid20 common sets, each consist of a central carbon atom bonded to four covalent partners.0
5147036707Carbohydrates"carbs" sugar polymers, act as a major dietary energy source in animals, also act as building materials in plants.1
5147036708Cellulosethe most abundant organic compound on earth, used for structure, polymer of glucose2
5147036709Dehydration reactionthis links cells together, when a monomer is added to the chain the reaction releases two hydrogen and oxygen atom. so it forms water.3
5147036710Desaturationchainging the shape of a protien by a change in temp4
5147036711Disaccharidestwo monosaccharides consturcted from dehydration. most common is sucrose which is glucose conneceted to a fructose (sucrose or lactose)5
5147036712DNAresides in long fibers called chromosomes.6
5147036713Fattypically consists of one glycerol molecule joined with three fatty acid molecules by dehydration. This results in triglyceride7
5147036714Functional groupsthe atoms that usually participate in chem reactions (hydroxl, carboxl)8
5151351061functions of a proteinstructural (hair), storage (seeds and eggs, provide amino acids for growth), conractile (helps movement), transport, Enxymes (help chemical reactions by changing the rate)9
5147036715Glycogenthis is where animals store the extra sugar (this is another form of a polysaccharide) (polymer of glucose)10
5151460755genespecific stretch of DNA that PRograms the amino acid sequence of a polypetide11
5147036716Hydrocarbonssimplest organic compound, contains only carbon and hydrogen atoms. are in the energy rich parts in fat molecules12
5147036718Hydrolysisopposite of dehydration, adds water between the monomers causing the cells to break bonds.13
5147036719Hydrophilicadhere water to their surface, most carbs are this. "water loving"14
5147036720Hydrophobic"water fearing" does not mix with water15
5151270070hydrogenationprocces of converting unsaturated fats into saturated by adding hydrogen. This creates something more unheathy then saturate , "trans fat"16
5147036721Isomersmolecule's that have the same molecular formula but different structures. ex; glucose and fructose17
5147036722Lipidsorganic compounds that are "water fearing" hydrophobic. does not mix with water. vary in structure and two main types are fats and steroids.18
5147036723Macromoleculessame as polymers- a large chain of monomers19
5150808799Methanesimplest hydrocarbon, contains only 1f carbon atom bonded with 4 hydrogen atoms.20
5147036724Monomerssmall molecules that make up polymers.21
5147036725Monosaccharidessimple sugars that cannot be broken down by hydrolysis. ex: glucose (main fuel for cellular work)22
5151450370nucleic acidsmacromolecules that provide the directions for building protiens (DNA RNA ) is a polymer made from monomers called nucleotides23
5147036726Organic compoundscarbon-based molecules, which lies at the heart of any study of life. Mostly bonds with hydrogen, oxygen, and nitrogen.24
5147036727Peptide bondthe bond between adjacent amino acids by dehydration25
5147036728Polymersare large molecules made by stringing together many smaller molecules called monomers.26
5147036729Polypeptidea long chain of amino acids27
5147036730Polysaccharideslarge chain of sugar units, also known as complex carbs, or polymers of monosaccharide. one ex is starch28
5147036731Primary structurethe proteins specific amino acid sequence29
5147036732Proteinhas thousands of different proteins. a polymer made up of amino acid monomers. has many different roles. Is a polymer consisting of one or more polypeptides.30
5147036733Saturatedwhen it has the max number of hydrogen atoms, tend to hold solid at room temp31
5147036734Starcha polysaccharide, created by many glucose monomers strung together. found in plants.32
5147036735Steroidsclassified as lipids because they are hydrophobic. all have carbon skeletons that are bent to form four fused rings. one common is cholesterol33
5147036736Trans fatvreated through hydrogenation by adding hydrogen to unsaturated fats34
5147036737Triglyceridethe result of 1 glycerol and 3 fatty acid molecules35
5147036738Unsaturateda fat that has fewer than the max number of hydrogens at the location of the double bond. has many double bonds within the fatty acids36
5151403607secondary stucturecertain streatches of a polypepetide form patterns , reinforced by hydrogen bonds37
5151421424tertiary stucturethe overall 3 dimensional shape of the polypeptide38
5151427030quaternary structureproteins with two or more polypeptidechains , results from bonds between chains.39
5147036739What is the difference between covalent, polar covalent, and hydrogen bonds?hydrogen bonds are weak, hydrogen atoms are slighly positive and create and attraction with the oxygen moleucle of another. a covalent bond is when they share electrons. And a polar covalent is when the electrons are not equally shared between atoms because one has a stronger pull on them.40
5147036740What are the properties of water that make it essential to life?cohesion allows water from the roots of the trees to be transported to their leaves. Also it create surface tension because of the hydrogen bonds. moderates temperature: earths giant water supply keeps temps within limits. (evaporative cooling: think track runners) Ice floating; in the winter the ice is on the top causing the water underneath to be insulated allowing life to still persist. water as a solvent: water is in our body and is the medium for chemical reactions.41
5147236353why does ice float?because when water becomes cooler the molecules spread farther apart forming ice. Ice has fewer molecules than the liquid form of water therefor it floats. This is a result of hydrogen bonding.42
5147036741Describe the special bonding properties of carbon that allow it to form and endless variety of organic molecules.43
5147196414Water moderating temperaturebecause of hydrogen bonding water has a stronger resistance to temp change. because of this water does not heat up fast but rather absorbs and stores energy. And when cooling down it releases a lot of heat energy while only decreasing a little in temp.44
5147036742Identify the functional groups and and explain their role in bonding.45
5147036743Compare a dehydration reaction to hydrolysis.46
5147036744How does dehydration and hydrolysis reactions build and break down large molecules?47
5147036745Identify and compare the structures and functions of monosaccharides, disaccharides, polysaccharides in living organisms. Five examples of each.48
5147036746What are the characteristics of lipids. Give the different types and their used in organisms.49
5147036747Compare the structure, properties, and uses of saturated and unsaturated fatty acids.50
5147036748Distinguish between steroids and anabolic steroid, and explain how the use of anabolic steroids can be dangers to a persons health.51
5147036749Describe the structure and function of proteins in living organisms.52
5147036750Distinguish between the primary structure and the final three-dimensional shape of polypeptides and proteins.53
5147036751Why has lactose intolerance evolved differently in humans spread throughout the world?54
5147036752Explain how gets nutrients from and gives nutrients to our bodies from the food we eat.55
5147059617polar moleculehas opposite charges on opposite ends. Ex: water because it has an unequal sharing of electrons.56
5147074059Hydrogen bondsthe weak attractions of one hydrogen atom of one molecule is near the oxygen atom of an adjacent water molecule. water molecules stick together because of this.57
5147133787cohesionthe tendency of molecules of the same kind to stick together. Lot stronger in water than other liquids.58

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