Chapter 7, 11, 12
Quiz yourself by thinking what should be in
each of the black spaces below before clicking
on it to display the answer.
Help!
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| This is the process of acquiring chemicals from the environment to be used for cellular activities | show 🗑
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| ___ is required for the production of the amino groups of all amino acids, and nucleotides | show 🗑
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| organisms that feed on dead organisms for nutrients are called | show 🗑
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| the majority of human pathogens fall into the group called ___ | show 🗑
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| show | Catalase
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| show | Superoxide dimutase and catalase
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| show | Salt lakes
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| Microbes in a biofilm use quorum sensing to___ | show 🗑
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| The phase kof the bacterial growth curve in which newly inoculated cells are adjusting to their new environment, metabolizing but not growing is the ____ | show 🗑
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| show | Exponential (log) phase
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| show | True
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| Lithoautotrophs use inorganic nutrients for carbon and energy sources T or F | show 🗑
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| A microorganism that has an optimum growth temperature of 37 degrees Celsius, but can survive short exposure to high temperatures is called ____ | show 🗑
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| The term facultative refers to ___ | show 🗑
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| Bacteria like Staphyloccus aureus can tolerate salt up to a certain point, higher than most normal pathogens. This means this bacteria is a ____ | show 🗑
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| The production of antibiotics is a form of antagonism called ____ | show 🗑
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| show | True
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| show | colony; cell
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| show | macronutrients
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| show | cannot be synthesized by the organism
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| show | True
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| show | optimum temperature
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| The term obligate refers to | show 🗑
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| The term aerotolerant anaerobe refers to an organism that | show 🗑
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| Which of the tollowing might grow in the very low pH of your stomach? | show 🗑
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| show | symbiosis
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| show | qPCR or PCR
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| Measuring growth by counting a special slide with a premeasured grid is known as ___ | show 🗑
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| Scrubbing or immersing the skin in chemicals to reduce the numbers of microbes on the skin is | show 🗑
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| Radiation typically damages Nucleic Acids. This means it damages | show 🗑
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| show | Typically takes longer to effect bacteria than moist heat
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| show | radiation
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| show | A gaseous sterilant.
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| show | True
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| Inorganic nutrients typically contain carbon and are produced by living things T or F | show 🗑
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| show | Penicillins
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| show | Beta-lactamase activity
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| Heavy metal compounds like mercury and silver are oligodynamic, meaning they are toxic in minute quantities T or F | show 🗑
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| Which of the following is not one of the toxic forms of oxygen that can damage the cell? | show 🗑
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| __ would most likely have a optimum growth temperature of 37 degrees Celsius | show 🗑
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| show | Steam autoclave
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| The us eof chemical agents directly on exposed body surfaces to destroy or inhibit vegetative pathogens is __ | show 🗑
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| __ heat is more rapidly effective and efficient compared to __ | show 🗑
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| show | Phenolics
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| show | Pasteurization
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| An organism that needs oxygen to grow Is a(n) | show 🗑
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| Each of the following is a target of antimicrobial agents except | show 🗑
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| ___ radiation excites atoms to a higher energy state within molecules such as DNA, which leads to the formation of pyrimidine dimers | show 🗑
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| Heavy metal compounds like mercury and silver are oligodynamic, meaning they are toxic in minute quantities T or F | show 🗑
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| The Kirby-Bauer test uses an agar surface seeded with the test bacterium, and small discs containing a specific concentration T or F | show 🗑
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| All ___ consist of a thiazolidine ring, a beta-lactam ring, and an R group | show 🗑
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| Clavulanic acid inhibits | show 🗑
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| An organism that needs oxygen to grow is called | show 🗑
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| If a microbe is exposed to a temperature below its minimum temperature, it is quickly killed? T or f | show 🗑
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| show | False
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| show | thermoduric microbe
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| show | 20-40°C
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| show | assess the size of a particular microbial population
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| show | In mutualism, the organisms are dependent upon each other
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| Organisms that grow at 0°C and have optimum growth temperatures of 15°C or lower are called | show 🗑
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| show | synergism
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| When microbes are in a close nutritional relationship and one benefits but the other is not harmed harmed, it is called | show 🗑
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| show | capnophiles
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| During which phase of growth would bacteria be most sensitive to antibiotics? | show 🗑
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| show | prebiotics
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| show | Resistant bacteria grow in the animals and may then be passed to humans
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| show | False
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| show | True
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| Some bacteria prevent antibiotics from entering by altering the structure of their ribosomes in the outer membrane t or f | show 🗑
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| The cellular basis for bacterial resistance to antimicrobials include | show 🗑
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| possible mechanisms of antiviral drugs | show 🗑
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| Alexander Fleming found that the Staphylococcus was being inhibited by the Penicillium mold t or f | show 🗑
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| Kirby-Bauer test uses an agar surface seeded with the test bacterium, and small discs containing a specific concentration of several drugs are placed on the surface t or f | show 🗑
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| show | Gyrase
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| show | Folic acid
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| A large percentage of all sales of medically important antibiotics in the United States are for livestock use. Why is this problematic for humans? | show 🗑
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| show | True
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| what happens in Osmotic pressure as an antimicrobial agent | show 🗑
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| Enzyme that will allow some bacteria to be resistant to many penicillins is called | show 🗑
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| Polymixins are narrow-spectrum peptide antibiotics that attack DNA and denature it T or F | show 🗑
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| show | death phase
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| Drugs that act by mimicking the normal substrate of an enzyme, thereby blocking its active site, are called | show 🗑
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| show | removing the drug from the cell when it enters
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| show | eukaryotic mitochondrial ribosomes
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| show | False
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| Each affect cell walls except -penicillin -vancomycin -erythromycin -cephalosporin | show 🗑
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egonz1