Enzyme Activity and Hydrogen Peroxide

The video tutorial explores the decomposition of hydrogen peroxide into water and oxygen gas, a spontaneous but slow reaction. It explains how catalysts, like the enzyme catalase from potatoes, can speed up this process. The instructor demonstrates an experiment using mashed potato, soap, and food coloring to visually observe the production of oxygen gas through bubble formation.

What is the nature of the decomposition of hydrogen peroxide?

• It requires external energy to occur.

• It is a spontaneous reaction.

• It cannot occur naturally.

• It is an endothermic reaction.

Why is the slow decomposition of hydrogen peroxide considered beneficial?

• It allows for long-term storage.

• It is more efficient.

• It requires less energy.

• It produces more oxygen gas.

What role does a catalyst play in the decomposition of hydrogen peroxide?

• It prevents the reaction from occurring.

• It speeds up the reaction.

• It changes the products of the reaction.

• It slows down the reaction.

From which source is the enzyme catalase derived in the experiment?

• Fried potato

• Cooked potato

• Boiled potato

• Raw potato

What is the purpose of adding soap bubbles in the experiment?

• To decrease the temperature

• To visualize the production of oxygen gas

• To increase the reaction rate

• To change the color of the solution

What indicates the production of oxygen gas in the experiment?

• Change in color

• Formation of bubbles

• Increase in temperature

• Decrease in volume