Chemical Reactions and Enzymes
Terms
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- Define chemical reaction
- A process that changes one set of chemicals into another set of chemicals
- Explaine the changes in chemical reactions
- Chemical reactions always involve changes in chemical bonds. The breaking of bonds, or the formation of new bonds.
- Reactant
- The elements or compounds that enter into the reaction
- Products
- Elements or compounds produced by a reaction
- Explain how carbonic acid helps us get rid of CO2
- Carbonic acid enables the bloodstream to carry CO2 to the lungs. (CO2 is not very soluble in water)
- Describe how energy is released or absorbed in chemical reactions
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Bonds Break - Energy is released
Bonds Form - Energy is absorbed or used. - Contrast chemical reactions that release and absorb energy.
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Reactions that release energy - spontaneous and fast
Reactions that absorb energy - need energy - slow - Define activation energy
- The energy needed to get a reaction started (lighting match to paper)
- Explain the role of a catalyst
- A substance that speeds up the rate of a chemical reaction (Because of slowness or have too high activation energy for living tissue)
- Explain the purpose of enzymes
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Enzymes are biological catalysts. They are proteins
They lower activation energy - Carbonic anhydrase
- speeds up CO2 reaction
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Explain this statement
Enzymes are specific -
Enzymes - speed up only one type of reaction
Name is usually derived from the reaction speeds up.