Enzymes Quiz
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5 questions, one answer each
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1. Why does an enzyme not change in a reaction?
- A. It is a reactant
- B. It is inert
- C. It is denatured and reformed
- D. It is a catalyst that is regenerated
2. What does stereospecific mean for an active site?
- A. It binds any substrate
- B. It binds only one enantiomer
- C. It is found only in stereo equipment
- D. It is formed from carbohydrate
3. How does an inhibitor drug stop an enzyme working?
- A. It lowers the temperature
- B. It increases substrate concentration
- C. It binds to the active site
- D. It breaks the peptide links
4. Why is computer modelling used in drug design?
- A. It replaces testing on patients
- B. It predicts how molecules fit the active site
- C. It makes active sites bigger
- D. It prevents side effects
5. Why might a drug be made as one enantiomer only?
- A. Both enantiomers have different formulae
- B. It is cheaper to make the mixture
- C. The other enantiomer is more active
- D. Only that enantiomer fits the active site, so less dose is needed and side effects are fewer