Chemical reactions and enzymes
Quiz yourself by thinking what should be in
each of the black spaces below before clicking
on it to display the answer.
Help!
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| What do enzymes speed up? | Chemical reactions.
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| What do enzymes lower? | Activation energy.
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| Which type of chemical reaction results in a release of energy? | Exergonic- energy exits
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| What is a chemical reaction? | The making or breaking of chemical bonds.
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| Why do chemical reactions occur? | Collisions between molecules.
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| What happens to the rate of a reaction when you have a higher concentration of molecules together? | The reaction will be faster because you have more collisions.
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| How does pH affect enzyme activity? | The optimum ph is where the enzyme works the best, as we move away your enzyme slows down,
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| How does temperature affect enzyme activity? | Increased temperature speeds up the reaction, decreased temperature slows down the reaction.
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| What is it called when the enzyme has stopped working and the enzyme activity graph goes straight down? | Denaturation
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| What physically happens to the enzyme when it has been denatured? | The enzyme experiences a change in shape, so it cannot fit with its substrate, and there is no chemical reaction.
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| What happens when an enzyme has a shape change? | No chemical reaction!
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| What is the monomer of a protein? | Amino acids
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| What is the monomer of a carbohydrate? | Glucose
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| What is the monomer of a lipid? | NONE!
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| What happens to to an enzyme when its shape has been changed by either hot temperatures or pH changes? | Denaturation
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| The smaller units that join together to make a polymer. | Monomer
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| Type of carbohydrate animals use for quick energy. | Glycogen
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| Monomer of nucleic acid | nucleotide
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| Type of carbohydrate plants use to store energy, it gives us quick a quick source of energy. | starch
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| When this is added to an enzyme it will denature | heat
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| Type of chemical reaction that releases energy | Exergonic
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| Energy required to start a chemical reaction | activation energy
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| Macromolecule responsible for long term energy storage, insulation, and repelling water | lipid
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| The specific location on an enzyme that the substrate binds to | Active site
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| Large molecules composed of many smaller molecules bonded together. | Macromolecules
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| Monomer of a protein | Aminoacid
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| Formed when an enzyme fits it substrate | enzyme substrate complex
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| The process of making or breaking chemical bonds that link atoms | Chemical reaction
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| The monomer of carbohydrates | Glucose
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| Extreme levels of this can denature enzymes | pH
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| Molecule that speeds up chemical reactions | Enzyme
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| A molecule made up of repeated parts called monomers | polymers
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| Macromolecule that store genetic information | nucleicacid
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| The substance that an enzyme works on | Substrate
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| Macromolecule that provides usable energy to living things in the form of of sugars and starches | carbohydrates
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| Type of chemical reaction that requires energy | Endergonic
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| Type of carbohydrate used for plant structure. | cellulose
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