Catalyst Regulating Reactions — Overview & Examples
Read this topicExplanations 3
- Speeding up Reactions Catalyst is a broad term used in chemistry to describe any substance that speeds up a chemical reaction and is not destroyed in the process. Enzymes, a typ…
By Deena Hauze, Alex Federspiel, Cam, Mario Janakis, Gabi Slizewska, Caroline K
- What Is a Catalyst? A catalyst is something that can lower the energy requirement for a reaction or make the reaction happen faster. A catalyst is not used up or destroyed by th…
By Sarah Morgan, Mario Janakis
- (Video) Activation Energy: Kickstarting Chemical Reactions by Vance Kite on TED-Ed You may have heard that enzymes help lower activation energy, but how exactly do they do that?…
By Mario Janakis
Problems 21
- Which statement below correctly describes this scenario?
- Which of the following is the best description of how enzymes regulate reactions?
- Which of the graphs pictured above represents the rate of a reaction with unlimited substrate, but limited enzyme?
- Which of the graphs pictured above represents the rate of the reaction with unlimited substrate and unlimited enzyme?
- What is the energy that is required for a chemical reaction to occur?
- What will cause the rate of a reaction to slow down?
- Which graph represents the addition of an enzyme from the original graph?
- Which of the following statements is false concerning these two beakers?
- In the process explained above, what component is functioning as the catalyst?
- Why is having control over the quantity and type of enzymes an organism makes important for life?
- What will happen to a reaction if a catalytic protein (enzyme) is denatured in the process?
- Which of the following are characteristic of enzymes? Check all that apply.
- How does moderately increasing the temperature speed up the reaction rate of enzyme-catalyzed reactions?
- How can we measure the rate of this reaction? In other words, how can we tell how fast reactants are being turned into products? More than one option may be correct.
- Which statement best explains the role of this enzyme in the reaction it mediates?
- Which of these would increase the rate of a reaction? (Check all that apply.)
- An enzyme is added to two separate beakers. The enzyme catalyzes the reaction A + C → B. Which of these statements must be true?
- The above black enzyme binds a crescent-moon-shaped substrate in its active site. When the small red molecule binds to a separate site on the enzyme, the shape of the active sit…
- Which of these reactions would most likely need an enzyme to happen in the human body?
- Based on the reaction shown above, which of these statements is/are true? Choose all that apply.
- Which of these graphs represents the above rate of reaction, where the red line is the enzymes reaching the saturation point?