There are four essay questions. Please you'll want to full all of them with thorough substantive responses. Citations are required for all responses.1. Present an instance of an organism inside every of the 4 most important dietary classes of microbes and describe how every obtains its important vitamins.2. Present proof in help of or refuting the next assertion: Microbial life can exist within the full absence of each daylight or natural vitamins.three. Polymerase chain response (PCR) is a know-how that requires excessive temperatures to breed DNA fragments. Clarify why the invention of thermophilic archaea and their related DNA polymerases was important to the success of this system.four. Summarize how the electron transport chain capabilities to provide ATP in a bacterial cell versus eukaryotic cell. Clarify whether or not or not the time period chemiosmosis precisely illustrates this course of.