Question

question 6
1 pts
how was catalase activity measured in the enzyme activity lab?
by measuring the height of the bubbles released from h2o2 due to catalase activity.
by measuring the pressure of oxygen gas (o2) released from h2o2 due to catalase activity.
by monitoring the level of the solution in the test tube due to the release of water from h2o2 due to catalase activity.
by measuring the pressure of water (h2o) vapor released from h2o2 due to catalase activity.

Explanation:

Catalase acts on \(H_2O_2\) (hydrogen peroxide) to produce \(O_2\) (oxygen) and \(H_2O\) (water). In many enzyme - activity labs, a common way to measure catalase activity is by observing the product related to its catalytic reaction. The height of bubbles is an indicator of the amount of \(O_2\) produced (since \(O_2\) forms bubbles in the solution). Measuring the pressure of \(O_2\) is also a valid method as the amount of \(O_2\) produced (related to catalase activity) can be inferred from the pressure it exerts. Monitoring the solution level due to water release is not a typical measure as water is a liquid and its volume change is not as直观 (intuitive) as gas - related measurements for this reaction. Measuring the pressure of water vapor is incorrect because the main gas product is \(O_2\), not water vapor in significant amounts relevant to this reaction for activity measurement.

Answer:

By measuring the pressure of oxygen gas (O2) released from H2O2 due to catalase activity.