At what substrate concentration would an enzyme with a k_cat of 30.0 s⁻¹ and a km of 0.0050 m operate at one-quarter of its maximum rate?

a. 0.33 x 10⁻³ m
b. 1.7 x 10⁻³ m
c. 2.33 x 10⁻³m
d. 8.73 x 10⁻³ m

Examine the false statement. compounds are the smallest unit of an element that occur most commonly in nature. select the rewording of the statement that is true. a: atoms are the smallest unit of an element that commonly occur in nature. b: molecules are the smallest unit of an element or compound that commonly occur in nature. c: molecules are the smallest unit of a compound that occur on the periodic table. d: compounds are the smallest unit of an element that occur on the periodic table