Hydrogen peroxide is a substance that is produced as a byproduct of many cell processes. However, hydrogen peroxide is toxic to cells. In fact, if cells are unable to break down hydrogen peroxide, they become poisoned and die. The chemical reaction for the breakdown of hydrogen peroxide is shown below.

What role does catalase play in this reaction?
A.
Catalase in an enzyme that slows down the reaction.
B.
Catalase is an enzyme that speeds up the reaction.
C.
Catalase is a product that is created during the reaction.
D.
Catalase is a reactant that gets used up in the reaction.

How does the study of genetic disorders such as pku biologists understand normal alleles?

Awave has a wavelength of 15 mm and a frequency of 6 hertz. what is its speed?

Read the scenario below and answer the question that follows. hallie is reading a novel in the library when susan, her best friend, slumps down in a chair next to her. susan doesn't say anything, but hallie knows that susan is upset because she is slumping in her seat and rolling her eyes. a psychologist would explain that hallie is interpreting her friend's emotion based on a. the behavioral component of emotion b. her friend's ability to regulate emotion c. the verbal component of emotion d. the physiological component of emotion select the best answer from the choices provided a b c d