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Biochemistry - PreAP Flashcards

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10572423086Activation EnergyThe energy needed to start a chemical reaction.0
10572423089Organic CompoundsCompounds that contain mainly the elements carbon and hydrogen. Ex. Carbohydrates, lipids, proteins, and Nucleic Acids.1
10572423100CarbohydrateRatio - 1 Carbon: 2 Hydrogen: 1 Oxygen Provide energy and structural support. Is broken down (cell respiration), release energy (ATP) & cells use energy for growth, repair & reproduction. Source - Sugars and Starches2
10572423101MonosaccharideSimple sugars. Types - glucose, fructose, and galactose. Source- Fruit, vegetables, and honey.3
10572423102Disaccharide2 Monosaccharides. Ex. Sucrose, maltose, and lactose.4
10572423103Polysaccharide3 Monosaccharides. Ex. Starch, Cellulose, Glycogen.5
10572423104Dehydration SynthesisWhen water is taken out to form a bond to create a polymer.6
10572423105HydrolysisWhen water is added to a macromolecule to separate it.7
10572423106LipidsMade of carbon, hydrogen, and a little bit of oxygen. Sources are meat, butter, nuts, cheese, fats, oils, fish. Three types - Triglycerides, cholesterol, and phospholipids. Functions a) insulation & protects organs b) membranes c) source of energy (2x that of carbs) d) helps body absorb vitamins e) supplies essential fatty acids8
10572423107TriglyceridesIt is saturated and unsaturated fat. 1 glycerol + 3 fatty acids Saturated The maximum amount of hydrogen. Single Bonds. Solid at room temp. Unsaturated Double Bonds. Liquid at room temp.9
10572423108Cholesterolimportant for nerve tissue lipid cell membrane used to make steroids10
10572423109PhospholipidsMakes up cell membranes. Consists of one glycerol, 2 fatty acids, and 1 phosphate.11
10572423110ProteinThe most common organic molecule. Sources -meat, fish, poultry, milk, eggs, nuts & beans Functions supply material to make new body parts for growth and repair a) skin, bones, tendons, hair, muscle b) cell energy when carbs & fats gone c) hormones (messengers) d) enzymes12
10572423111Amino AcidsAbout 20 different ones. Essential ones must be ingested and vice versa. Form the basic structure of proteins. Monomers of proteins.13
10572423112enzyme-substrate complexIt fits only certain substrates. Enzymes are specific to the substrate they break down or build up.14
10572423113NucleotideJoin together to make DNA & RNA. Made of: *5 carbon sugar unit (ribose or deoxyribose) *phosphate group *nitrogen base - adenine, guanine, cytosine or thymine (uracil in RNA)15
10572423114DNA StructureI) Structure of DNA (deoxyribonucleic acid) A) Nucleotides - units that make up DNA 1) Phosphate Group is the side of the ladder 2) Deoxyribose Group 3) Nitrogen-containing base - rungs of the ladder16
10572423117Function of DNAA) Genes - (sections of DNA) Carry the instructions for the formation of all the proteins that make up and control your body. Ex: pigments for color, enzymes, organelles, neurotransmitters Genes are divided into 3 nucleotide groups called triplet codons that determine the sequence of amino acids for each protein B) DNA is replicated so you can make new cells and pass genetic information to offspring.17
10572423118Carboxyl GroupA group found in amino acids. It is slightly acidic and frequently ionizes.18
10572423121CatalystLowers the amount of activation energy necessary for a chemical reaction.19
10572423122DenaturationA change in the structure and function of a protein20
10572423123MonomersForm Polymers when combined through dehydration synthesis. Ex.Carbohydrates - monosaccharides. Lipids - glycerol and fatty acids. Nucleic acids - nucleotides. Proteins - amino acids.21
10572423124PolymersFormed by the combination of monomers. Ex.Proteins. Carbohydrates. DNA. RNA. Lipids. Nucleic acids. Peptides. Polysaccharides22
10572461062Can cause an enzyme to not work correctlythe wrong pH or wrong temperature23
10572466204This lowers the activation energy, which speeds up the rate of reactionsEnzyme purpose24

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