How do carrier proteins recognize substances to transport in active transport?
a.
they will allow any substance to pass.
c.
they have a pore that only the substance will fit through.
b.
they have a specific binding site for the substance.
d.
the substance recognizes the carrier protein.

How does a catalyst increase the speed of a reaction? a. the catalyst eliminates the activated complex stage, allowing products to form immediately. b. the catalyst lowers the energy level of the reactants, making it easier for them to react. c. the catalyst makes it easier for the activated complex to form, lowering the activation energy. d. the catalyst raises the energy level of the products, making the reaction finish sooner. reset next