The substrate is the part that sticks into the active site of an enzyme.
Doctors try to remove tumors from the body to prevent it from spreading and affecting other parts of the body.
Answer: no
Explanation: 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.
Answer
The answer is A I think...
