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microbiology exam chapters 1-4 questions with correct answers what is normal microbiota - Answer-microbes normally present in and on the human body what are some importance of normal microbiota - Answer-it prevents the growth of pathogens produces growth factors such as folic acid and vitamin K what are biofilms - Answer-when microbes attach to solid surfaces and grow into masses where do biofilms grow? - Answer-they will grow in rocks, pipes, teeth, and medical implants what is...

Microbiology Exam Practice Questions with Correct Answers Recombinant DNA technology can be most accurately defined as the... a. use of microorganisms to produce useful products b. selective breeding of organisms to create new combinations of traits c. study of replication and recombination in microbes d. study of genetic expression in microbes e. deliberate modification of the genome of an organism for practical purposes - Answer-e. deliberate modification of the genome of an organism...

Microbiology Exam Questions and Answers (100% Pass) general purpose, enriched, selective, differential, anaerobic growth, specimen transport, assay, enumeration - Answer-Functional type beef extract and peptone (common media) - Answer-Nutrient broth beef extract, peptone, agar (common media) - Answer-Nutrient agar Polysaccharides isolated from red algae. Solid at room temperature, liquid at 100, cools at 42. Holds moisture and nutrients. Not digestible for microbes. - Answer-Agar ...

Microbiology Exam Questions and Answers (Definite Pass) Which statement BEST describes what happens when a gram POSITIVE bacterium is placed in distilled water and penicillin? A. no change will result; the solution is isotonic B. water will move into the cell C. water will move out of the cell D. the cell will undergo osmotic lysis E. sucrose will move into the cell from an area of higher concentration to one of lower concentration - Answer-D. the cell will undergo osmotic lysis Ch ...

Microbiology Exam Questions and Answers Ignaz Semmelwies - Answer-used hand washing to prevent transmission of puerperal fever from one OB patient to another Joseph Lister - Answer-used chemical disinfectant to prevent surgical infections; treated skin before surgery Robert Koch - Answer-proved anthrax was caused by Bacillus anthracis Edward Jenner - Answer-inoculated person with cowpox virus, then they were protected from smallpox -Vaccination -vacca-- cow Chemotherapy - Answe...

Microbiology Exam Questions with 100% Correct Answers bacteria that is used with protein synthesis? - Answer-ribosome energy to turn prokaryotic flagellum derived from? - Answer-proton motive force flagellum in sprochetes? (structure) - Answer-internal flagellum runs the length of spirochetes depending on which what the flagellum spins DOc holliday died of consumption--what disease? - Answer-tuberculosis plasma membrance phospholipids that have polar region one one end , and nonpo...

MICROBIOLOGY EXAM QUESTIONS WITH COMPLETE SOLUTIONS Fimbriae -- small hair-like structures that promote attachment Pili -- promotes conjugation and can promote attachment (Haemophilus influenzae type B or HiB) Diseases with fimbriae - Answer-streptococcus mutans -- likes sugar, sticks to teeth causing cavities Neisseria gonorrhea -- sticks to genital urinary system Lipopolysaccharide (LPS) - Answer-found only in gram negative bacteria it is an ENDOtoxin pyrogenic compound cann...

Microbiology Exam Questions with Correct Multiple-Choice Answers An electron microscope must use electromagnet "lenses" shaped like donuts to direct the electrons onto the specimen. Why? A. Electrons are particles-there are also particles in air. Without a vacuum, the electrons would strike and be scattered by the atoms/particles within the air. B. Because electrons are highly radioactive, and the chamber must be completely sealed to prevent them from escaping and contaminating the l...

Microbiology Exam Review Questions with Correct Answers (Rated A+) what does rRNA stand for? - Answer-ribosomal RNA who came up with the 16s ribosomal RNA technique? - Answer-Woese boiling to release ______ from cells - Answer-DNA ______ can live in extreme conditions - Answer-archaea extreme halophiles can survive: - Answer-extreme subjection to salt Hyperthermophiles can survive: - Answer-extreme temperatures are archaea prokaryotes or eukaryotes? - Answer-prokaryotes a...

Microbiology Exam Review Questions with Correct Answers Cilia - Answer-Which of the appendages for microorganism movement is similar to flagella but shorter and more numerous, also function as feeding and filtering structures, and move in back and forth motion? The glycocalx - Answer-What is the outermost layer that comes into direct contact with the environment and is usually composed of polysaccharides as a network of fibers? protection, adherence for other cells to it surface and rec...

Microbiology Exam Review Questions with Verified Answers Latest The total number of protons in an atom is equal to its A) atomic weight B) molecular weight C) chemical weight D) atomic number (Chapter 2) - Answer-D) atomic number Which one of the following pairs is matched correctly? A) carbon-organic compounds B) glucose-hydrogen bonds C) ions-covalent bonds D) phosphate-enzyme (Chapter 2) - Answer-A) carbon-organic compounds When sodium hydroxide, a strong base, is added...

Microbiology- Exam Study Guide Questions with Correct Answers

Microbiology Practice Exam Questions with Verified Answers Atoms of the same element that have different numbers of neutrons are called_____. - Answer-isotopes If an element has two electrons in the first shell and seven in the second shell, the element is said to be what? - Answer-unstable The transfer of one or more electrons between interacting atoms results in what type of bond? - Answer-ionic bond The covalent bonding of atoms forms a/an _____ - Answer-molecule The _____ bond...

Microbiology Practice Exam Review Questions with Verified Answers ________ is a prokaryote. A) Escherichia coli B) Paramecium C) Penicillium D) Amoeba - Answer-Escherichia coli The end product of the glycolysis pathway is A) Glucose B) pyruvate C) Acetyl CoA D) Sucrose - Answer-pyruvate Feedback inhibition in a metabolic pathway refers to A) The final end product of a metabolic pathway inhibiting the first enzyme involved in the same pathway. B) The metabolic pathway re...

Microbiology Quiz Questions with Correct Answers (Graded A+) Koch's postulates - Answer-Steps to prove that a specific microbe causes a specific disease (proved a bacterium causes anthrax) Chemotherapy - Answer-treatment with chemicals Synthetic drugs - Answer-chemotherapeutic agents used to treat infectious disease Antibiotics - Answer-chemicals produced by bacteria & fungi that inhibit or kill other microbes Microbial genetics - Answer-Study of how microbes inherit traits Ex: ...

Microbiology Quiz Review Questions with Correct Answers What are there 3 domains - Answer-Archaea, bacteria, and eukarya What does INCUBATION of microorganism do? - Answer-Insulated media are placed in controlled environment( incubator) to promote grown which could take hours to days. What information is gathering of microorganism? - Answer-Biochemical traits, immunological testing, genetic typing What is ISOLATION of microorganism - Answer-Pure culture What is magnification? - An...

Microbiology Study Guide Exam Questions with Complete Solutions 2023/2024 Division, Kingdom, Phylum, (Division), Class, Order, Family, Genus, Species Underline Genus species name or italicize Capital Genus name and lowercase species name May abbreviate genus name if already stated H. sapien - Answer-What is the system for naming/classification? Inoculation Incubation Isolation Inspection Identification - Answer-What are the Five I's? culture= to grow medium= nutrient rich...

Microbiology Test Questions with Correct Answers C - Answer-which of the following nutrients is only needed in small amounts by microorganisms? A. carbon B. sulfur C. calcium D. Nitrogen E. none of the above D - Answer-which of the following is best method to sterilize heat-sensitive solutions such as antibiotics? A. dry heat B. autoclave C. pasteurization D. membrane filtration E. none of the above B - Answer-which of the following is NOT true about agar? A. liquifies at 1...

Microbiology Unit 1 Exam Questions with Correct Answers BIOREMEDIATION - Answer-Microbes used to remove environment pollutants BRIGHT-FIELD MICROSCOPE - Answer-Background is Light, Specimen is Clear; 1000X DARK-FIELD MICROSCOPE - Answer-Background is Dark, Specimen is Light TRANSMISSION ELECTRON MICROSCOPE - Answer-Detailed images of speciman's internal; 100,000X SCANNING ELECTRON MICROSCOPE - Answer-Detailed images of speciman's surface; 100,000X SCANNING TUNNELING "PROBE"...

Principles of Microbiology – Exam Questions with Correct Answers (Ziehl-Neelson) Acid-Fast Stain - Answer-detects certain type of bacteria (TB), detects cell walls that are different from G+/G- walls, detects walls containing mycolic acid Steps of Acid-Fast Stain - Answer-1. hot carbolfuschin (stain) 2. Acid wash 3. Counter stain with Methelyne blue Outcomes of Inter-relationship among living organism - Answer-- parasitic - opportunistic - mutualistic Parasitic (host-path. rl...