Someone take the time to give me the answers to these questions pls

well, you see. the answer to your question is quite simple. the thing that is big, powerful, and over 9,000 is your mom.

it should be briana that has it to me

answer: substrate concentration. enzymes work best when there is a high enough substrate concentration for the reaction they catalyse.

the solute can move "downhill," from regions of higher to lower concentration, relying on the specificity of the protein carrier to pass through the membrane. this process is called passive transport or facilitated diffusion, and does not require energy.