MICR 3164 Microbio Exam #1 Questions And Answers 100% Correct Verified Answers.

Prokaryote - correct answer -No nucleus -Divide by binary fission -Unicellular and lack organelles Eukaryotes - correct answer -Found in animals, plants, fungi, protozoa -Contain organelles that perform useful functions Microbiology - correct answer Branch of science that deals with microorganisms Virology - correct answer the study of viruses Mycology - correct answer The study of fungi and yeasts Parasitology - correct answer the study of worms, protozoan and amoeba (parasites) Bacteriology - correct answer the study of bacteria Viruses - correct answer -Infect cells to replicate -Around 100 nm -Classified by host range and nucleic acid content Viruses - correct answer -Parasitic -Protein-coated genetic elements -Dependent on their host -Connected with the evolution of microbes and humans Anton van Leeuwenhoek - correct answer discovered the microscope Louis Pasteur - correct answer pasteurization (heating to kill bacteria) The Germ Theory of Disease Joseph Lister - correct answer created a disinfectant and aseptic technique Alexander Flemming - correct answer Discovered penicillin Robert Koch - correct answer Koch's postulates verifies the germ theory Ignaz Semmelsweis - correct answer discovered the importance of hand washing first word: genus second word: species - correct answer Binomial Nomenclature 20-800 nanometers - correct answer Size of virus .2 micrometers - correct answer size of bacteria 2-10 micrometers - correct answer size of fungi 3-4 mm - correct answer size of protozoa Fluorescence microscopy - correct answer Microbe are made fluorescent and viewed with a UV microscope Confocal microscope - correct answer Uses a laser to focus the UV light on a single plane Transmission Electron Microscopy - correct answer Ultra thin sections of sample used to study intracellular structures Scanning electron microscopy - correct answer Used to study surface structures Oil Immersion Lens - correct answer Use oil to capture light that would be lost in scatter Gram Staining - correct answer Universal diagnostic staining technique for bacteria Acid-Fast Staining - correct answer Differentiates from fast (pink) to non fast (blue) Endospore stain - correct answer Dye forced into heat resistant bodies complex media - correct answer contain at least one ingredient that is not chemically definable ex: extracts of animals, blood, serum general purpose media - correct answer used to grow a broad spectrum of microbes it is a complex type defined media - correct answer media whose compositions are precisely chemically defined pure and inorganic compounds selective media - correct answer contains one or more agents that inhibit the growth of certain microbes (sel