BIO 2280 - MICRO BIOLOGY COMPLETE SET QUESTIONS WITH ANSWERS | UPDATED | ALREADY PASSED

BIO 2280 - MICRO BIOLOGY COMPLETE SET QUESTIONS WITH ANSWERS | UPDATED | ALREADY PASSED lOMoAR cPSD| I. Binary Fission A. How do prokaryotes replicate? 1. Through the process of binary fission B. What form of reproduction is binary fission? 1. Asexual reproduction C. How many daughter cells are formed from binary fission? 1. 2 D. What happens in step 1 of binary fission? 1. The cell elongates its cell envelope and the DNA is replicated E. When the septum forms in binary fission during step 2 of binary fission, what happens to the replicated DNA? 1. It moves at the opposite ends of the cell F. What is the septum? 1. Forms at the center where the cell divides G. What happens in step 3 of binary fission? 1. The septum creates 2 separate cells, however they are still connected H. What happens in step 4 of binary fission? 1. The cells separate completely into 2 identical daughter cells I. When the chromosomes separate during binary fission, what begins to form? 1. Septum J. What is generation time? 1. The amount of time that it takes a prokaryotic cell to complete binary fission and double the number of cells lOMoAR cPSD| II. Generation time A. How can scientists measure the growth rate of a microbial population? 1. By calculating its generation time B. Do all microbes have the same generation time? 1. No, different types of microbes will have different generation times. III. Microbial growth curves A. What is a closed system in a lab? 1. When the cells that are grown are completely enclosed and nothing can come in and out? B. What will happen to microbial growth in a closed system? 1. Eventually all microorganisms would die due to the limitations of the amount of nutrients that are present. C. What happens during the lag phase in the microbial growth curve? 1. Cells from a pure colony begin to make the enzymes that will be required for cell growth D. What happens during the log or exponential phase in the microbial growth curve? 1. Cell division occurs at a rapid pace E. What happens during the stationary phase in the microbial growth curve? 1. Because the nutrients are limited,