Bio 111 Lab Tamu Exam 1 Questions And Answers 100% Solved

Accuracy - a measure of how close a result matches a correct or standard value Precision - a measure of variability. For example, three darts placed close together on a dartboard indicate high precision, but if this cluster of darts is far from the bullseye it would also indicate low accuracy Aliquot - a portion of something (noun); or to divide or transfer a portion of something (verb). For this lab, aliquot refers to an amount of liquid Micropipette - an instrument used to measure/deliver amounts of liquid with high accuracy and precision. Micropipettes are expensive so treat these with respect Spectrophotometer - an instrument for measuring the intensity of light that is transmitted through a sample (transmittance) or absorbed by a sample (absorbance). In this lab, you will measure light absorbance at a defined wavelength Molar weight - a measure of mass. By definition, a mole is 6x1023 objects Standard curve - a graph in which properties of known samples are measured and plotted. The direct proportionality of these properties can then be used to determine the same information from unknown samples. In this lab, a standard curve of Absorbance versus protein concentration will be used to determine the concentration of protein in an unknown sample.