Catalysts (Enzymes) — Overview & Examples
Read this topicExplanations 5
- Speeding Up Reactions Catalysts are substances that increase the rate of a chemical reaction. The catalysts do not undergo any permanent shape change and are not used up during …
By Deena Hauze, Alex Federspiel, Mario Janakis, Jonathan Heller, Valeri Natole
- Enzyme Catalysis Enzyme are proteins (chains of amino acids) that speed up chemical reactions. Because they make reactions go faster, enzymes are called catalysts. (The process …
By Hannah Bonville, Alex Federspiel, Deena Hauze, Mario Janakis
- Explanation #8835
By Gabi Slizewska, Mario Janakis
- (Video) Function of Enzymes by Study.com Have you ever wished you had an enzyme's aid while building a snowman in the winter? Maybe not, but you will after watching this video. …
By Valeri Natole, Mario Janakis, Jonathan Heller
- (Video) Enzymes and Catalysts by Beverly Biology Watch this video for a great explanation on what catalysts do, how they work, and how they are structured.
By Mario Janakis
Problems 22
- Which of the following best describes the role of enzymes in biological reactions?
- Which letter shows the activation energy change caused by the catalyst?
- Enzymes and other catalysts are used for what purpose?
- How are enzymes related to catalysts?
- Which numbered portion of the image above shows the catalyst?
- The graphs above show the activation energy required for two chemical reactions: Reaction A and Reaction B. Using these images, determine which reaction was catalyzed by an enzyme.
- The graph above shows two different versions of Reaction X - with a catalyst and without a catalyst. Which curve (1 or 2) shows Reaction X when a catalyst is present?
- Which macromolecule would a biological catalyst, or enzyme, be classified as?
- Which of these statements is true?
- What is a catalyst?
- What is the main purpose of a catalyst?
- Inference: Which type of catalyst operates in the same phase as the reactants?
- Inference: Which type of catalyst does not operate in the same phase as the reactants?
- What form do biocatalysts come in most commonly?
- Why is it important that catalysts are not consumed in reactions?
- Substance A is converted into Substance B in a catalyst-mediated reaction, as shown above. What is the role of the catalyst in this reaction?
- Which of these is a mechanism by which catalysts make reactions happen more efficiently?
- Which of these best explains why the rate of reaction is lower at 10° than it is at 30°?
- Which of the following items is the best representation of a catalyst?
- What is a common type of catalyst?
- Enzyme X normally has a reaction rate of 500 units per minute. Molecule C is added to the cell culture. After a few minutes, the cell culture is observed and the reaction rate h…
- Which of the following correctly describes the differences between catalysts and inhibitors?