Minor changes improve the clarity of this introduction to microscope techniques. Cellular Structure Reflects Function . Text changes emphasize the concept that the structure of cells reflects their function, and asks the students to apply their knowledge by identifying unknowns. Quantitative Techniques and Statistics . A topic often not included in lab manuals, but one that is necessary for Biology majors.
Students learn to handle pipettes, balances, and spectrophotometers.
Introduces the idea of statistical variation that will be used in later labs. Determining the Properties of an Enzyme . Changes made in this lab emphasize hypothesis formation and testing, and using data to reach conclusions about hypotheses. This is a lab that works for beginning students and yields excellent data on pH and temperature optima for an enzyme. Traditional investigations of diffusion and osmosis are augmented by a revised section on vacular pumping rates in Paramecium emphasizing hypothesis testing.