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Biology Test 1
Chemical reactions and enzymes
| Question | Answer |
|---|---|
| What do enzymes speed up? | Chemical reactions. |
| What do enzymes lower? | Activation energy. |
| Which type of chemical reaction results in a release of energy? | Exergonic- energy exits |
| What is a chemical reaction? | The making or breaking of chemical bonds. |
| Why do chemical reactions occur? | Collisions between molecules. |
| 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. |
| How does pH affect enzyme activity? | The optimum ph is where the enzyme works the best, as we move away your enzyme slows down, |
| How does temperature affect enzyme activity? | Increased temperature speeds up the reaction, decreased temperature slows down the reaction. |
| What is it called when the enzyme has stopped working and the enzyme activity graph goes straight down? | Denaturation |
| 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. |
| What happens when an enzyme has a shape change? | No chemical reaction! |
| What is the monomer of a protein? | Amino acids |
| What is the monomer of a carbohydrate? | Glucose |
| What is the monomer of a lipid? | NONE! |
| What happens to to an enzyme when its shape has been changed by either hot temperatures or pH changes? | Denaturation |
| The smaller units that join together to make a polymer. | Monomer |
| Type of carbohydrate animals use for quick energy. | Glycogen |
| Monomer of nucleic acid | nucleotide |
| Type of carbohydrate plants use to store energy, it gives us quick a quick source of energy. | starch |
| When this is added to an enzyme it will denature | heat |
| Type of chemical reaction that releases energy | Exergonic |
| Energy required to start a chemical reaction | activation energy |
| Macromolecule responsible for long term energy storage, insulation, and repelling water | lipid |
| The specific location on an enzyme that the substrate binds to | Active site |
| Large molecules composed of many smaller molecules bonded together. | Macromolecules |
| Monomer of a protein | Aminoacid |
| Formed when an enzyme fits it substrate | enzyme substrate complex |
| The process of making or breaking chemical bonds that link atoms | Chemical reaction |
| The monomer of carbohydrates | Glucose |
| Extreme levels of this can denature enzymes | pH |
| Molecule that speeds up chemical reactions | Enzyme |
| A molecule made up of repeated parts called monomers | polymers |
| Macromolecule that store genetic information | nucleicacid |
| The substance that an enzyme works on | Substrate |
| Macromolecule that provides usable energy to living things in the form of of sugars and starches | carbohydrates |
| Type of chemical reaction that requires energy | Endergonic |
| Type of carbohydrate used for plant structure. | cellulose |
Created by:
noack.stride
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