Catalysts ____. A) change their molecular structure while ...

[penza]

Catalysts ____.
 A) change their molecular structure while facilitating chemical reactions
  B) facilitate chemical reactions while remaining unchanged
  C) inhibit chemical reactions while remaining unchanged
  D) facilitate chemical reactions but do not occur in biological systems

Question 2

Trace minerals are required by the body in amounts of less than 1 mg/day.
  Indicate whether the statement is true or false

[zacnyjessica]

Answer to Question 1

B

Answer to Question 2

FALSE