How does an enzyme speed up a chemical reaction?

Question 2 options:

A)
They lower the activation energy of chemical reactions.

B)
They raise the temperature of the cell, speeding up chemical reactions.

C)
They store ATP, which allows more energy to be used in chemical reactions.

D)
They act as miniature “transfer trucks” gathering materials for chemical reactions and placing them together

Question

How does an enzyme speed up a chemical reaction?

Question 2 options:
	
A) 	
They lower the activation energy of chemical reactions.

	
B) 	
They raise the temperature of the cell, speeding up chemical reactions.

	
C) 	
They store ATP, which allows more energy to be used in chemical reactions.

	
D) 	
They act as miniature “transfer trucks” gathering materials for chemical reactions and placing them together