Experiment: In a classroom experiment, crushed liver (source of catalase) was placed in hydrogen peroxide solutions of different concentrations.Observation: Bubbles formed rapidly at 3% concentration, less at 1%, and very little at 0.2%.Question: What conclusion follows?

Question

TestUstad · Accepted Answer

Catalase activity increases with substrate concentration up to a point.. The correct answer is that catalase activity increases with substrate concentration up to a point. This conclusion is supported by the observation that more bubbles formed at higher hydrogen peroxide concentrations, indicating increased catalase activity. The other options are incorrect because they either misinterpret the relationship between catalase and hydrogen peroxide (inhibition or lack of effect) or suggest that all concentrations give the same enzymatic activity, which contradicts the experimental results.

TestUstad · Answer

Hydrogen peroxide inhibits catalase at all levels.

TestUstad · Answer

Liver tissue does not affect bubble formation.

TestUstad · Answer

All concentrations give the same enzymatic activity.

Experiment: In a classroom experiment, crushed liver (source of catalase) was placed in hydrogen peroxide solutions of different concentrations.Observation: Bubbles formed rapidly at 3% concentration, less at 1%, and very little at 0.2%.Question: What conclusion follows?

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