Biology courseworkAlginate beads experiment

Biology Coursework
Alginate beads experiment

Aim: To investigate the effects of substrate concentration on an enzyme reaction.

Background: An enzyme is a protein formed in living cells and assisting chemical processes. Catalyst is a substance that speeds up reactions. The alginate beads are made of alginate and potato juice. The alginate bead experiment works because of oxygen bubbles which stick to the bead which makes the bead rise soon after dropping it into hydrogen peroxide. Hydrogen peroxide broken down by catalyse substrate the quicker the reaction which means more gas so more rise, this can be seen in the my graph as the concentration. The more concentrated the catalyse solution the quicker the bead rises.

Collision theory: The key factors which affect the rate of a chemical enzyme are the concentration, temperature and surface area. The greater the surface area the more bubble caused by the reaction it will take for the bead to rise. Ph also affects the rate of...