An enzyme is a protein that ____. A) regulates metabolic ...

[sammy]

An enzyme is a protein that ____.
 A) regulates metabolic processes
  B) speeds up (catalyzes) chemical reactions
  C) helps the body to achieve acid-base balance and optimal pH
  D) helps maintain fluid balance

Question 2

The quaternary (3rd level) structure of the protein determines its ____.
 A) function
  B) shape
  C) rigidity or stability
  D) ability to bind with other compounds

[kingdude89]

Answer to Question 1

B

Answer to Question 2

D

[sammy]

Thanks for the timely response, appreciate it

[nathang24]

Excellent