Key Words- Biology

Amino Acids- The building blocks of protein.

Capillary-The smallest blood vessel that runs between individual cells. It has a wall that is only one cell thick.

Catalyst- A substance which speeds up a chemical reaction. At the end of the reacion remains chemically uncharged.

Concentration Gradient- The gradient between an area where a substance is at a high concentration and an area where it is at a low concentration.

Culture Medium-A substance…