Microbiology Final Exam PRACTICE TEST 2025| Complete Questions and Answers, 100% Correct| Guaranteed Success

Microbiology Final Exam PRACTICE TEST 2025| Complete Questions and Answers, 100% Correct| Guaranteed Success In the name Escherichia coli, coli is the Domain. Kingdom. Genus. Specific epithet. Discoverer. Specific epithet. Which of the following is the best definition of biotechnology? The development of recombinant DNA technology The use of living organisms to make desired products The curing of diseases The use of microorganisms in sewage treatment Bacterial production of foods The use of living organisms to make desired products Which of the following CANNOT be made by using recombinant DNA technology? Vaccines Human hormones Pharmaceutical drugs Life Pest-resistant crops Life Which of the following requirements was NOT necessary for Pasteur to disprove spontaneous generation? Providing a food source that would support growth Supplying air Keeping microorganisms out Removing microorganisms that were initially present Identifying bacteria Identifying bacteria Which of the following is NOT a domain in the three-domain system? Animalia Archaea Bacteria Eukarya Animalia Identify the following reaction: NH4OH NH3 + H2O Dehydration synthesis reaction Hydrolysis reaction Exchange reaction Reversible reaction Ionic reaction Reversible reaction Identify the following reaction: HCl + NaHCO3 NaCl + H2CO3 Dehydration synthesis reaction Hydrolysis reaction Exchange reaction Reversible reaction Ionic reaction Exchange reaction Assume Saccharomyces cerevisiae is grown in a nutrient medium containing the radioisotope 32P. After a 48-hour incubation, the 32P would most likely be found in the S. cerevisiae's Plasma membrane. Cell wall. Water. Proteins. Carbohydrates. Plasma membrane. Which of the following statements about the reactions in Table 2.2 is false? They are exchange reactions. They are ionization reactions. They occur when the reactants are dissolved in water. They are dissociation reactions. They are reversible reactions. They are exchange reactions. Which compound in Figure 2.1 is an organic acid? a This microscope produces an image of a light cell against a dark background; internal structures are NOT visible. Compound light microscope Phase-contrast microscope Darkfield microscope Fluorescence microscope Electron microscope Darkfield microscope Which of the following pairs is mismatched? Gram-negative bacteria - negative stain Iodine - mordant Alcohol-acetone - decolorizer Acid-alcohol - decolorizer Crystal violet - simple stain Gram-negative bacteria - negative stain In this microscope, the observer does NOT look at an image through a lens. Compound light microscope Phase-contrast microscope Darkfield microscope Fluorescence microscope Electron microscope Electron microscope The appearance of gram-negative bacteria after addition of the mordant in the Gram stain.