microbiology straighterline final Exam Correctly Solved!!

phylogeny - ANSWERThe study of evolutionary relationships among organisms is called ______. Last Universal Common Ancestor - ANSWERThe three cell types discussed, eukaryotes, archaea, and bacteria, all derived from ______. always harmful to their host - ANSWEROrganisms called parasites are ______. Thermal hot springs warmed by heat from earth's interior - ANSWERWhich of the following does not indicate microbe involvement in energy and nutrient flow? Electrons - ANSWERThe subatomic particles that surround the nucleus are the ______. respiratory disease - ANSWERThe number one worldwide infectious diseases are ______. saturated - ANSWERA fat is called _____ if all carbons of the fatty acid chain are single-bonded to 2 other carbons and 2 hydrogens. lipid - ANSWEROne technique for staining bacteria for viewing under the microscope is called the Gram stain. In this technique, alcohol is used as a decolorizer because it degrades the outer membrane found in some bacteria. What chemical component of the cell does alcohol affect? 95X - ANSWERIf a microbiologist is studying a specimen at a total magnification of 950X, what is the magnifying power of the objective lens if the ocular lens is 10X? cell size of 0.5 to 2 microns - ANSWERNASA has published a list of criteria for identifying fossil bacteria in samples from Mars, as part of a search for evidence of life. Which of the following is good evidence for the presence of bacterial cells? electron - ANSWERWhich type of microscope achieves the greatest resolution and highest magnification? a solid medium - ANSWERWhich of the following is produced by adding 1% to 5% agar to nutrient broth that is then boiled and cooled? Creutzfeldt-Jacob disease - ANSWERa spongiform encephalopathy of humans amphitrichous - ANSWERThe term that refers to flagella at both poles of the cell is ______.