Biology notes on cell metabolism.

*Metabolism:Term use to describe chemical responses in a cell. *Reactants:Chemicals that react with apiece some other. *Products:Chemicals produced at the end of a chemical reception. *Anabolic reaction:Reactions that involve the building up of complex molecules from s elfler molecules. Enery is required. e.g photosynthesis*Catabolic reaction: Reactions where complex molecules argon imp everywhereished down into simpler molecules. These reactions realease energy.e.g respiration*Enzymes: Catalysts(proteins) which rush along up chemical reactions without acquiring envolved in them. -enzymes control metabolous reactions. -They argon proteins. -Proteins are do up of long set up of amino acids, that fold all over and take up a specialised modulate. -Enzymes will tho work if they have the sort out shape to allow them to process properly. * substratum:Substance an enzyme reacts with. ^^pH^^-Tends to change the shape of the enzyme and undecided the rate an enzyme will accept out its function. -Enzymes will totally have its correct shape at a specific pH. -The enzyme aims less efficent on the other side of the pH. ^^Temperature^^-At low temporary workeroraryoraryorary doer cell contents become solid, so enzymes stomachnot work. -As temp increases so does rate of reaction because the substrate and enzyme get more energy. -The temp that an enzyme works beast at is its optimum temp. -above optimum temp enzymes denature and rate of reaction drops. __________________________________*Immobilised Enzymes: Enzymes that are attached to eachother or an inert material.

Advantages of immobilised enzymes-Can recover enzymes easily- Enzymes can be reused-effiency of enzymes is not brachydactylic*Bioreactor-Large tank containing enzymes in an immobilised prepare used in industrial processes. ________________________________________* industrious rate- The part of the enzyme taht combines with the substrate. Active Site Theory1.The substrate combines wih the fighting(a) site of the enzyme. 2.The active site is induce slightly to draw in a better chalk up for the substrate. 3.The bonds in the substrate are altered so the substrate changes into the products. 4.Products leave... If you want to get a full essay, order it on our website: Ordercustompaper.com

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