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BIO 120-Metabolism
BC - An Introduction to Metabolism
| Question | Answer |
|---|---|
| The addition of a phosphate to any molecule or substrate. | Phosphorylation |
| This law states that the total amount of the energy in the universe remains constant. | First Law of Thermodynamics |
| Metabolic reactions whereby the products have more energy than the reactants. | Endergonic |
| Which has LESS potential energy, ADP or ATP? | ADP |
| What does ATP stand for? | Adenosine Tri Phosphate |
| What is the name of the region of an enzyme which binds the substrate? | Active Site |
| This law states that all ordered systems proceed toward increasing randomness over time. | Second Law of Thermodynamics |
| This is defined as the capacity to do work. | Energy |
| What are the building blocks of enzymes? | Amino Acids |
| The term for changing the shape of a protein either by high heat or a change in pH. | Denaturation |
| The name of the substrate when it is at the top of the energy hill and it is said to be "activated". | Transition State |
| The type of allosteric control whereby product feeds back allosterically to turn off the enzyme. | Feedback Inhibition |
| This is defined as energy use and transfer. | Metabolism |
| Metabolic reactions whereby the products have less energy than the reactants. | Exergonic |
| The type of enzymatic control whereby the reaction is controlled by the binding of a molecule to a secondary binding site. (other than that of the active site) | Allosteric Control |
| A measurement of disorder or randomness. | Entropy |
| The type of enzymatic control whereby a molecule similar to the substrate blocks the active site by binding to it. | Competitive Inhibition |
| What is the name of the model which specifies that the enzyme's active site changes to fit the shape of the substrate? | Induced Fit Model of Enzymes & Substrates |
| Enzymes speed up the rate of reactions by lowering the _______. | The Energy of Activation |
| Degradative metabolic pathways that break down complex molecules are known as: | Catabolism |
| Biosynthetic metabolic pathways that build complex molecules are known as: | Anabolism |
| This is an example of an anabolic pathway. | Photosynthesis |
| This is an example of a catabolic pathway. | Respiration |
| Catabolism ______ energy. | Releases |
| Anabolism ______ energy. | Consumes |
| What are the 3 parts of an ATP molecule? | A sugar (ribose), 3 phosphates, and a base (adenine) |
| How is the terminal phosphate of ATP broken to release energy? | Hydrolysis (addition of a water molecule) |
| Production of ATP is coupled with which metabolic pathway? | Catabolism |
| Use of ATP is coupled with which metabolic pathway? | Anabolism |
| Most enzyme names end in _____. | ASE |
| The pH or temperature at which an enzyme works the best is known as the its: | optimum |
| Cofactors are _______ | metallic ions which bind to the enzyme to enable it to function. |
| Coenzymes are _______ | organic molecules which bind to the enzyme to enable it to function (such as vitamins). |
| Give an example of a coenzyme: | Vitamins |
| Give an example of a cofactor: | Iron |
| High temperatures can change the shape of an enzyme which is when they are _____. | Denatured |
| _______ enzymatic control occurs when a molecule binds to a site other than the active site and either inhibits or stimulates activity. | Allosteric |
Created by:
callen-pbsc
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