1. Unit 1: pH Introduction to Biology and Basic Chemistry within Biology

2. pH and Living Systems Lab Guiding Questions Why is pH important to biological systems? How is pH related to water? How is pH related to ions? How can the concentration of ions within a solution be determined by knowing the pH? Is a slight change in the pH within a living system or within their environment harmful or significant? WHY or WHY not?

3. Interdependence How does this lab demonstrate the interdependence between organisms (biotic factors)? How does this lab demonstrate the interdependence between organisms (biotic factors) and their environment (abiotic factors) ?

4. pH and Living Systems Lab

5. Metabolism Think about the biochemical processes mentioned in the introduction of the pH and Living Systems Lab. Organisms require and energy and raw materials. Chemical reactions within living systems transform energy and raw materials.