click below
click below
Normal Size Small Size show me how
Microbio
microbiology
| Question | Answer |
|---|---|
| 1) What is the study of biology that is too small to be seen with the naked eye? | Microbiology |
| 2) What is a greenhouse gas that can be primarily produced by microorganisms? | Methane |
| 3) What is the term when microorganisms are used to clean up oil spills in the ocean? | Bioremediation |
| 4) What are 2 microorganisms that carry out photosynthesis? | Algae & Bacteria |
| 5) The term pathogenic means that microorganisms are what? | Harmful |
| 6) Who was the scientist that perfected microscope lenses & used the term animalcules? | Leeuwenhoek (remember Hooke looked first - Leeuwenhoek made it better!) |
| 7) When it comes to infectious disease, what is the number 1 cause of death? | Respiratory infections |
| 8) Who was the first scientist to link specific microorganisms with specific disease? | Robert Koch |
| 9) What is the term for orderly arrangement of organisms into groups that shows evolutionary relationships? | Phylogeny |
| 11) Start with the most inclusive (includes the most stuff) to the most exclusive taxonomic levels:(remember - Do kings play chess on fine grain sand) | Domain, Kingdom, Phylum, Class, Order, Family, Genus, Species |
| 12) Who developed the 5-kingdom system that we use today? | Carl Woese |
| 13) Who disproved spontaneous generation by using the swan-neck flask experiment? | Pasteur |
| 14) What is the most common & most important monosaccharide that is the building block of starch, cellulose, and glycogen? | Glucose |
| 15) Membranes are made up of what? | Double-layers of phospholipids |
| 16) What does the primary structure of protein refer to? | The sequence of amino acids |
| 17) What is the building blocks of proteins? | Amino acids |
| 18) Enzymes are proteins that function as what? | catalysts (they increase biological reactions in cells) |
| 19) What is the most common process that links each subunit of monosaccharides into a macromolecule and forms polysaccharides? | Dehydration synthesis |
| 20) What is the term for complete absence of viable microbes? | Sterile |
| 21) What is the 5 I’s of microbiology? | Inoculation, Incubation, Isolation, Inspection, Identification |
| 22) What is a mound of cells grown from a select cell on a media called? | Colony |
| 23) What are the 3 states of media? | Liquid, Semi-solid, & Solid |
| 24) If one wanted to check the motility of bacteria, what type of medium would be used? | Semi-solid |
| 25) What type of medium has a composition that is chemically defined? | Synthetic |
| 26) What medium promotes the growth of a specific microbe while inhibiting growth of others? | Selective medium |
| 27) If a bacterium that was placed on a specific medium started out yellow and then turned hot pink with numerous colonies now growing, what type of medium was used? | Differential |
| 28) What type of medium would be used to deliver patient samples to a laboratory? | Transport |
| 29) What temperatures are generally used to grow bacterial species? | 20 & 45* C |
| 30) What 3 things identify microbes? | Appearance, morphology, biochemical reactions |
| 31) What type of stain is found when the microbe is clear against a dark background? | Negative |
| 32) What stain technique uses only one dye? | Simple |
| 33) In Gram staining, what color will the gram-negative specimen be? | Red (or pink) |
| 34) What type of stain is used for Mycobacterium tuberculosis? | Acid-fast |
| 35) For a patient with a smelly leg wound that is suspected to be Clostridium, what staining technique would be used? | Spore stain |
| 36) What is the most common light microscope that is used to view a specimen that is darker than its surrounding? | Bright-field |
| 37) What type of slide is prepared to check biochemical reactions? | Hanging drop |
| 38) Which of the following do prokaryotes have? | Nucleus, histones, organelles, ribosomes |
| 40) The selectively permeable cell membrane does what 2 things? | Regulates transport & metabolic activities |
| 41) What is the function of ribosomes? | Protein synthesis |
| 42) Where is chromosomal material located in a prokaryote? | Nucleoid |
| 43) A bacillus with flagella at both ends would be considered what? | Amphitrichous |
| 44) The flagellum is attached to the cell body by a? | Basal body |
| 45) What are spiral shaped bacteria that exhibit motility due to periplasmic flagella? | Spirochetes |
| 46) A conjugation pilus allows bacteria to do what? | Transfer genetic material |
| 47) What is the function of a Glycocalyx? | Aid in adhering to cell’s environment, aid in preventing phagocytosis, formation of biofilms |
| 48) The cell membrane of mycoplasmas is stabilized and resistant to lysis because of what? | Sterols |
| 49) What is not found in a gram-positive bacterium’s cell envelope? | Outer membrane |
| 50) What initiates the formation of an endospore? | Depletion of nutrients |
| 51) Why are bacterial endospores medically important? | They resist ordinary cleaning and sanitizing methods |
| 52) What is the bacterial that is shaped like an O? | Coccus |
| 53) The ability of a single species of bacteria to vary in shape and size is called what? | Pleomorphism |
| 54) The cell wall of bacteria contain a unique macromolecule called what? | Peptidoglycan |
| 55) A gram-positive cell that has been exposed to chemicals resulting in the loss of its cell wall is called? | Protoplast |
| 56) Archaebacteria that convert carbon dioxide and hydrogen into methane gas are called what? | Methanogens |
| 57) Small, bristelike fibers covering the surface of many bacterial cells for colonization are called what? | Fimbriae |
| 58) Bacteria can communicate through chemicals or what? | Nanowires |
| 59) Palisades are an arrangement of what bacteria? | Bacilli |
| 60) What are the 2 attachment points for bacteria? | Fimbriae & pili |
| 61) Periplasmic flagella are also called what? | Axial filaments |
| 62) Persistent colonization of catheters, IUD’s, pacemakers, stents, and other implanted devices is caused by what? | Biofilms |
| 63) Walking pneumonia is most often caused by what type of bacteria? | Mycoplasma |