The function of an enzyme is to A Slow down chemical reactions
B. Speed up chemical reactions
C. Stop chemical reactions

C:speedup chemical reaction

Explanation:

Enyme's main function is to increase reaction rate by decreasing activation energy.

i.e

Chemical Reaction 1 without enzyme ||  Chemical Reaction 2 with enzyme

Activation Energy= 9000J                          Activation Energy= 500J

Reaction Rate=1^-7                                      Reaction Rate=1^+3

time to reach equillibrium=7h                   time to reach equillibrium=20min

in the year 2850, humans successfully colonized mars. the martian modules that were constructed could hold only a small population of people. it is now a century later, and the population on mars has grown to 600 people. of the current mars population, 45 people express the recessive phenotype for phenylketon- uria (pku) syndrome (pp genotype).

explanation: