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The Science of Biology Flashcards

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695378964BiologyThe study of living things.
695378965EnzymesProteins that speed up the chemical reactions that make life possible.
695378966What are enzymes functions?speed up chemical reactions, do not change in a chemical reaction, are sensitive to surrounding conditions, and lower activation energy.
695378967LactaseEnzyme that breaks apart the lactose molecule. Without it, causes lactose intolerance.
695378968CatalystCompound that changes the speed of a chemical reaction without itself being changed by the reaction,
695378969Are all proteins enzymes?No.
695378970What makes is possible for the body to digest a milk product?Breaking apart the disaccharide lactose molecule into two monosaccharide molecules.
695378971What happens when the full lactose molecule is not absorbed completely?Abdominal cramps and other symptoms from consuming too much lactose.
695378972How many different enzymes are there in the human body?1500.
695378973What does the suffix *ase* indicate?That a chemical is an enzyme/
695378974What does amylases do?Breaks up starches.
695378975What does cellulases do?Break up cellulose fibers/ remove tiny fibers from cotton cloth that make the cloth stiff and clothes dull/ preventing pilling (small fuzz balls).
695378976LipasesBreaks up oils and fats.
695378977ProteasesBreaks up proteins.
695378978Can enzymes recognize and interact with specific molecules?Yes.
695378979What other roles do enzymes partake in your body?They play roles in building the structural proteins that make up your body and help your body quickly rid of extra carbon/ maintain homeostasis.
695378980What enzyme is structures to interact with molecules of lactose?Lactase
695378981SubstrateThe molecule that an enzyme interacts with.
695378982Active siteThe region of the enzyme that recognized the substrate. It often appears as a groove or indentation of the surface of the enzyme, into which that substrate fits.
695378983Substrate moleculesbind to an enzyme's active site to produce an enzyme*substrate complex. Once bound, the enzyme shifts its shape slightly, bringind its peptide chains in closer contact with the substrate molecule, much like a catcher's mitt clasping a baseball.
695378984ProductThe end result of an enzyme catalyzed reaction.
695378985Galactose and glucose are the products of what reaction?Enzyme substrate complex.
695378986Protein synthesisThe amino end of one amino acid forms a peptide bond with the carboxyl end of another.
695378987An enzyme that can hold both substrates together in proper orientation helps what?Ensure that peptide bonds can form b/w amino acids.
695378988Activation energyThe amount of energy required for a reaction to take place.
695378989With the amount of enzyme held constant, as the concentration of substrate increases, ...the rate of the reaction also increases.
695378990CoenzymesTemporary parts of enzymes that move about and temporarily bind with an enzyme, then move on and interact with other enzymes.
695378991ZincZn
695378992CopperCu
695378993CofactorsCompounds required by certain enzymes.
695378994pHhow acidic or basic the environment is.
695378995Does the pH of an enzymes environment effect an enzymes activities?yes.

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