BIOL 1208 Chapter : ANALYZING ENZYME AND ENZYME KINETIC III
Document Summary
Accuracy: refers to closeness of a measured or calculated value to its "true value" Precision: closeness of repeated measurements to one another. When using replicates, to get best representation use averages and a line of best fit. Mean: descriptive statistic, average of series of data points, describes center of population of data, makes a bell curve graph typically. Standard deviation: describes how far away from mean the data points spread. Indication of how much variation there is for the data. Standard error: similar to s. d. but takes into account the sample size of the data. Benefit of standard deviation is being able to tell if data sets are truly statistically different. If error bars overlap, they are not considered statistically different. Diffusion: movement of particles across a membrane from higher concentration to lower concentration. Osmosis: water molecules are moving from down their concentration gradient across a membrane. Membranes allow cells to control their internal environment.
