PORTAGE MICROBIOLOGY FINAL EXAM 70+ QUESTIONS AND CORRECT ANSWERS WITH EXPLANATIONS LATEST GUIDE 2025/2026 .

1. Match each of the following organelles with the correct description. Ribosomes nucleus cytoplasm lysosomes Correct answer Ribo - funtion in protein synthesis nucleus - contains genomic content cyto - constitutes the open volume lyso - contains hydrolytic enzymes 2. Briefly explain how a Scanning Electron Microscope (SEM) forms an image ofsubcellular organelles,substrates, and viral particles. Correct answer Animage isformed from the interactions of electrons as they reflect ott (not through) the surface of the specimen. Samples are coated in either gold or palladium to enhance electron reflections. The reflection is seen in 3-D rendering. OR A scan (image) as electrons reflect ott surfaces of a specimen loaded into the machine. In order for this to best work, any sample is coated in gold or other refractive material to enhance reflections. SEM is shown in 3-D 3. Match each of the following organelles with the correct description. Nucleus Endoplasmic Reticulum Lysosomes Chloroplasts Correct answer Nucleus - Contains genomic content of the cell Endoplasmic Reticulum - Series of membrane-enclosed sacs and interconnected tubes Lysosomes - Contain hydrolytic enzymes capable of degrading unwanted cellular debris Chloroplasts - Site of photosynthesis 4. Match each of the following diseases to the correct bacterial family. Scalded Skin Syndrome Bubonic PLague Opthalmia Neonatorium Legionnaires Correct answer Scalded Skin Syndrome - Staph Aureus 3 / 10 Bubonic Plague - Yersina Pestis Opthalmia Neonatorium - Staphylococcus Legionnaires - Legionella 5. Identify each of the following microorganisms as either a Prokaryote or a Eukaryote. E.coli Archaeons Yeast Amoeba Correct answer E.coliProkaryote Archaeons- Prokaryote Yeast - Eukaryote Amoeba - Eukaryote 6. Match each of the following terms with the correct description. Phototroph Lithotroph Autotroph Chemotroph Correct answer Phototroph - Utilize photons of light to generate ATP from ADP Lithotroph - Remove electrons from inorganic molecules Autotroph - Obtain their source of carbon from inorganic molecules Chemotroph - Acquire energy from preformed chemicals found in the environment 7. Match each of the following ter