Iron binds tightly to the heme group in the protein hemoglobin. What type(s) of helper molecule would this be considered?
A - A coenzyme, cofactor, and prosthetic group
B - Only a coenzyme
C - A cofactor and a coenzyme
D - Only a cofactor
E - A prosthetic group and cofactor
Answer: E - A prosthetic group and cofactor
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How Enzymes Work
- Which of the following is NOT true of enzyme regulation?
- A non-substrate molecule binds to an enzyme. Now the enzyme is able to bind its substrate when it previously could not. What has likely occurred?
- Competitive inhibition involves an inhibitor.
- Cellular respiration includes a step that converts pyruvate into Acetyl coA. Acetyl coA is also known as Coenzyme A. This implies that Acetyl coA.
- A coenzyme is differentiated from the broader class of cofactors because it is.
- Which of the following is NOT true of a noncompetitive inhibitor?
- An activator could have the following effect on an enzyme.
- What type of bond is often formed between prosthetic groups and proteins?
- Many coenzymes are derived from.
- Which of the following would likely NOT increase a reaction rate of an enzyme in your mouth that was not yet at optimal conditions?
- An increase in temperature.
- The following conditions can denature an enzyme.
- The change in free energy of a reaction is
- Pepsin works optimally in your stomach due to its.
- An enzyme will reach its saturation point.
- Which of the following is NOT true of lactase?
- Which of the following is TRUE about enzymes?
- The location of substrate binding is called the
- What is induced fit?