Biol 240 - UW - Midterm One Questions and Answers 100% Verified

A human feels sick and asks about the pathogens cell wall. Which cell wall composition can you rule out? - NAG NAT (these are archaea) A new halophile in the dead sea was found. What will its cell wall look like? - It is an archaea so something with NAG and NAT A new microorganism has histones and a single RNA polymerase that looks a lot like one you might find in fungi. What is it? - Archaea A type stain is a... - Representative reference specimen available in a central depository ABC Transporters - Solute binding protein binds to a solute (nutrient). This complex binds to a protein channel. The channel undergoes a conformation change. ATP hydrolysis provides the energy for the opening of the channel and the movement of the solute against a concentration gradient Achaea Cannulae - Hollow glycoprotein tubes that link cells together to form a complex network. There is cytoplasm flowing through those tubes Adherence Molecules - Allow cells to stick to surfaces pili (s. pilus), fibers of pilin protein, possess other proteins on their tips for sticking. These are called fimbirae Algae - Many are multicellular. All are photosynthetic with cellulose cell walls Algae Cell Walls - Made of cellulose All of the following compounds can be found in the bacterium Staphylococcus except... - MreB. If you don't have this you will be spherical. This makes you a coccoid cell. So MreB is not found in Staphylococcus.Peptidoglycan, FtsZ, Bactoprenol (this is a lipid carrier in bacteria), and a Lipid Bilayer are all found in this cell Amitochondriates - Do not have mitochondria. They probably had one and then lost it. These sometimes have a hydrogenosome Amphitrichous - One tail coming out of each pole (both ends) Antibiotic Resistance - Some bacteria can produce an enzyme to destroy the critical beta-lactam ring structure. Second drug must be added to inhibit the enzyme. Antonievan Leeuwenhoek () - Made improvements in microscope lens construction that allowed the first description of bacteria. The father of microbiology. He looked at plaque on teeth Archaea Cell Envelope - All archaea possess a plasma membrane. Most have a cell wall, yet most do not have an outer membrane. Their cell wall is not super thick (unlike the thick cell wall in grampositive bacteria). Both structures are different from their equivalents in the other domains