BIO 100 LAB FINAL QUESTIONS WITH VERIFIED SOLUTIONS

BIO 100 LAB FINAL QUESTIONS WITH VERIFIED SOLUTIONS What are the steps of the Scientific Method? Observation, formulation of a question, hypothesis creation, experimentation, repetition, and data analysis How do you calculate total magnification? 4 x 10 = 40x 10 x 10 = 100x 40 x 10 = 400x Can any characteristic be used in an analytical key? Only observable characteristics What is taxonomy? The science of classifying organisms using a binomial system What is diffusion? The movement of particles from a region of high concentration to a region of low concentration What is osmosis? The movement of water across a membrane from an area of high water concentration to an area of lower water concentration What factors affect the rate of diffusion? Kinetic energy, which varies with temperature, and different concentrations of sucrose What does it mean if a cell is in a hypertonic solution? Water moves out of the cell What does it mean if a cell is in a hypotonic solution? Water moves into the cell What happens in an isotonic solution? There is no net movement of water in or out of the cell What was the hypothesis in the osmosis experiment? Increasing the sucrose concentration inside the semipermeable bag will increase the rate of osmosis. How did the experimental groups differ from the control group in the osmosis experiment? They had different molar concentrations of sucrose solution. What were the variables in the osmosis experiment? Independent variable: sucrose concentration Dependent variable: rate of osmosis in semipermeable bags What is the purpose of mitosis? Used for growth, repair, and asexual reproduction Stages: prophase, metaphase, anaphase, telophase What is the purpose of meiosis and what are its stages? To produce gametes for sexual reproduction Stages: prophase I, metaphase I, anaphase I, telophase I, prophase II, metaphase II, anaphase II, telophase II What are sister chromatids? Two identical copies of a chromosome What are homologous chromosomes? Pairs of chromosomes with the same length, centromere position, and genetic traits What is a diploid cell? A cell with two sets of chromosomes, one from each parent What is a haploid cell? A cell with one set of