Question

What happened to the catalase molecule when exposed to high heat and acid?

1. it grew larger
2. it disappeared
3. it dissolved
4.it changed shape

Answer 1

2. it disappeared because the heated up acid ate it away

Answer 2

Ans. (4). it changed shape.

Catalase is an enzyme that performs decomposition of H2O2 (hydrogen peroxide) into oxygen and water, and protects the cells from oxidative damage by ROS (reactive oxygen species).

Catalase is a protein molecule, and can be denatured by exposure to certain chemicals, acidic environment or high heat. Denaturation of proteins leads to change in shape of the protein, because of disrupted bonds between the amino acids.

Thus, the correct answer is option (4).