Unit 1: pH
Introduction to Biology and Basic Chemistry
within Biology
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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?
pH and Living Systems Lab
Guiding Questions
• 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) ?
Interdependence
pH and Living Systems
Lab
• 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.
Metabolism