Nutrients enter a cell the concentration gradient by the process of
a) with; diffusion
b) against; osmosis
c) against; diffusion
d) with; endocytosis

A) with; diffusion

Explanation: What is diffusion? It is the movement of a substance from an area of high concentration to one of low concentration. Where does diffusion occur? Diffusion occurs in liquids and gases since their particles move randomly. It is a crucial process for living things because it is how substances move in and out of cells.

the binding of the substrate is dictated by the shape of each molecule. side chains on the enzyme interact with the substrate in a specific way, resulting in the making and breaking of bonds.

idk

explanation: