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BIOL 2460 Microbiology Master Exam
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BIOL 2460 Microbiology Master Exam
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BIOL 2460 Microbiology MasterQ: A hypothesis can be defined as .
A: A scientific explanation that is subject to testing.
Q: Which of the following parts was absent from Leeuwenhoek’s microscopes?
A: Condenser.
Q: Which is the correct order of the taxonomic categories, going from most specific to most general?
A: Species, genus, family, order, class, phylum, kingdom, domain
Q: How would you classify a virus?
A: Neither A or B. A: Prokaryotic B: Eukaryotic
Q: Which of the following is not considered a microorganism?
A: Mushroom.
Q: Which process involves the deliberate alteration of an organism’s genetic material?
A: Recombinant DNA technology.
Q: When a hypothesis has been thoroughly supported by long-term study and date, it is considered .
A: A theory.
Q: Abiogenesis refers to the .
A: Spontaneous generation of organisms from nonliving matter.
Q: Which of the following is correctly ordered in size from the smallest to the largest?
A: Atom, protein, bacterium, helminth.
Q: Which of the following are not eukaryotic?
A: Both A and B. A: Bacteria B: Archaea
Q: Bonds in which atoms share electrons are defined as bonds.
A: Covalent.
Q: RNA plays an important role in what biological process?
A: Protein synthesis.
Q: DNA is a hereditary molecule that is composed of ?
A: Deoxyribose, phosphate, and nitrogen bases.
Q: The charge of a proton is exactly balanced by the charge of a(n) .
A: Positive, negative, electron.
Q: Proteins are synthesized by linking amino acids with bonds.
A: Peptide.
Q: A solution with the pH of 2 than a solution with a pH of 8.
A: Has more H+.
Q: An element is defined by the number of .
A: Electrons.
Q: Hydrogen bonds can form between adjacent to each other.
A: A hydrogen atom and an oxygen atom.
Q: Electrons move around the nucleus of an atom in pathways called .
A: Orbitals.
Q: The smallest unit of matter with unique characteristics is .
A: An atom.
, Q: Motility is best observed with a .
A: Hanging drop preparation.
Q: A microscope that has a total magnification of 1,500X when using the oil immersion objective has an ocular of what power?
A: 15X.
Q: The term culture refers to the growth of microorganisms in .
A: Macroscopic, media.
Q: The specimen for an electron microscope is always .
A: Killed.
Q: A fastidious organism must be grown on what type of medium?
A: Enriched.
Q: Resolution is with a longer wavelength of light.
A: Worsened.
Q: A real image is produced by the .
A: Objective.
Q: A mixed culture is .
A: One that contains two or more known species.
Q: Bacteria tend to stain more readily with cationic (positively charged) dyes because bacterial surfaces .
A: Contain large amounts of acidic substances.
Q: Agar has the disadvantage of being easily decomposed by microorganisms.
A: False.
Q: Which of the following is not found in all bacterial cells?
A: Actin-like cytoskeleton.
Q: Pili are tubular shafts in bacteria that serve as a means of .
A: Gram-negative; genetic exchange.
Q: An example of a glycocalyx is .
A: A capsule.
Q: Which of the following is a primary bacterial cell wall function?
A: Support.
Q: Which of the following is present in both gram-positive and gram-negative cell walls?
A: Peptidoglycan.
Q: Darkly stained granules are concentrated crystals of that are found in .
A: PO4; Corynebacterium.
Q: Bacterial endospores usually function in .
A: Survival.
Q: A bacterial arrangement in packets of eight cells is described as a .
A: Sarcina.
Q: To which division does E. coli belong?
A: Gracilicutes
Q: Which stain is used to distinguish difference between the cell walls of medically important bacteria?
A: Gram stain.
Q: Both flagella and cilia are found primarily in .
A: Protozoa.
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