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MICROBIO QZ1

QuestionAnswer
THE TERM USED TO DESCRIBE A DISEASE CAUSING MICROORGANISM IS PATHOGEN
MICROORGANISMS ARE INVOLVED IN EACH OF THE FOLLOWING PROCESSES EXCEPT SMOG PRODUCTION
THE MICROBIAL PROCESS OF CONVERTING SUGARS TO ALCOHOL IS KNOWN AS FERMENTATION
THE PRESERVATION OF BEEF JERKY FROM MICROBIAL GROWTH RELIES ON WHICH METHOD OF MICROBIAL CONTROL? DESICCATION
DESICCATION IS A RELIABLE FORM OF STERILIZATION TF FALSE
IN A HYPERTONIC SOLUTION, A BACTERIAL CELL WILL TYPICALLY PLASMOLYZE
ANTIBIOTICS THAT TARGET CELL WALL SYNTHESIS ULTIMATELY CAUSE BACTERIAL CELL DEATH AS A RESULT OF OSMOTIC LYSIS
WHAT WILL HAPPEN IF A BACTERIAL CELL IS PRETREATED WITH A LYSOZYME SOLUTION, THEN PLACED IN DISTILLED WATER? THE CELL WILL UNDERGO OSMOTIC LYSIS
WHICH OF THE FOLLOWING STATEMENTS IS FALSE? WATER MOLECULES ARE FORMED BY HYDROLYSIS
MYCOLOGY IS THE STUDY OF MOLDS, YEASTS, AND MUSHROOMS
IN MICROSCOPY, THE TERM RESOLUTION REFERS TO THE ABILITY TO DISTINGUISH FINE STRUCTURE AND DETAIL IN A SPECIMEN
A STUDENT IS LOOKING AT A BACTERIAL SPECIMEN USING THE OIL IMMERSION LENS, BUT. HAS FORGOTTEN TO PUT IMMERSION OIL ON THE SLIDE. THE SPECIMEN WILL APPEAR SOMEWHAT FUZZY AND HAVE POOR RESOLUTION
THE LIMIT OF RESOLUTION OF THE COMPOUND MICROSCOPE ILLUMINATED WITH VISIBLE LIGHT IS APPROXIMATELY 0.2 UM. TF TRUE
SALTS AND SUGARS WORK TO PRESERVE FOODS BY CREATING A HYPERTONIC ENVIRONMENT
CELLS PLACED IN A HYPERTONIC SOLUTION TEND TO LOSE WATER DUE TO OSMOTIC PRESSURE. TF TRUE
APPLICATION OF HEAT TO LIVING CELLS CAN RESULT IN ALL OF THE FOLLOWING EXCEPT DECREASED THERMAL DEATH TIME
WHICH OF THE FOLLOWING PAIRS OF MICROBE CLASSIFICATION TERMS AND OPTIMAL GROWTH TEMPERATURES IS MISMATCHES THERMOPHILE GROWTH AT 37 DEGREES CELSIUS
PATHOGENIC BACTERIA ISOLATED FROM THE RESPIRATORY OR INTESTINAL TRACTS OF HUMANS ARE CAPNOPHILES THAT GROW BEST IN CARBON DIOXIDE INCUBATORS
MICROBES THAT LIVE STABLY IN AND ON THE HUMAN BODY ARE CALLED THE HUMAN MICROBIOME
THE RESOLUTION OF A MICROSCOPE CAN BE IMPROVED BY CHANGING THE WAVELENGTH LIGHT
BIOGENESIS REFERS TO THE DEVELOPMENT OF LIFE FORMS FROM PREEXISTING LIFE FORMS
WHO CALLED THE IDEA OF SPONTANEOUS GENERATION WITH THE CONCEPT OF BIOGENESIS RUDOLF VIRCHOW
TF SPONTANEOUS GENERATION REFERS TO THE LIVING CELLS ARISING FROM OTHER LIVING CELLS FALSE
WHICH OF THE FOLLOWING STATEMENTS IS TRUE ENDOSPORES ALLOW A CELL TO SURVIVE ENVIRONMENTAL CHANGES BY PRODUCING A DORMANT PERIOD WITH NO GROWTH
ENDOSPORES ARE HIGHLY RESISTANT TO HARSH ENVIRONMENTAL CONDITIONS DUE TO ALL EXCEPT WHICH ONE OF THE FOLLOWING? SMALL TRIGGERING MOLECULES CALLED GERMINANTS
THE MOST RESISTANT OF THE BACTERIAL ENDOSPORES CAN WITHSTAND BOILING FOR UP TO 20 HOURS
MOST BACTERIA REPRODUCE BY BINARY FISSION
TF CHLOROPLASTS POSSESS CIRCULAR DNA AND REPRODUCE BY BINARY FISSION TRUE
WHICH OF THE FOLLOWING DOES NOT ACHIEVE STERILIZATION? PASTEURIZATION
TF THE PROCESS OF PASTEURIZATION TO REDUCE FOOD SPOILAGE UTILIZES HIGH HEAT TO KILL ALL BACTERIA PRESENT FALSE
THE FORMAL SYSTEM FOR CLASSIFYING AND NAMING ORGANISMS WAS DEVELOPED BY CAROLUS LINNAEUS
PROTEIN SYNTHESIS IN EUKARYOTES IS SIMILAR TO THE PROCESS IN PROKARYOTES IN THAT BOTH E AND P USE CONDONS TO DETERMINE POLYPEPTIDE SEQUENCES
TF PROKARYOTES LACK ORGANELLES TRUE
ARCHAE DIFFER FROM BACTERIA IN THAT ARCHAEA HAVE CELL WALLS COMPOSED OF SUBSTANCES OTHER THAN PEPTIDOGLYCAN
A SYSTEM OF CLASSIFICATION GROUPING ORGANISMS INTO 3 DOMAINS BASED ON CELLULAR ORGANIZATION OF ORGANISMS WAS DEVISED BY CARL WOESE
TF THE CELL MEMBRANES OF ALL 3 DOMAINS ARE COMPOSED STRAIGHT CARBON CHAINS ATTACHED TO GLYCEROL BY ESTER LINKAGE FALSE
WHICH OF THE FOLLOWING IS NOT A DOMAIN IN THE 3 DOMAIN SYSTEM ANIMALIA
WHICH OF THE FOLLOWING IS THE BEST EVIDENCE FOR A 3 DOMAIN SYSTEM NUCLEOTIDE SEQUENCES IN RIBOSOMAL RNA VARY BETWEEN ALL 3 DOMAIN SYSTEMS
WHICH OF THE FOLLOWING STATEMENTS IS INCORRECT REGARDING PROKARYOTIC CELLS? THEY LACK A PLASMA MEMBRANE
WHAT MISTAKE DID JOHN NEEDHAM MAKE THAT CAUSED HIM TO CONCLUDE THAT SPONTANEOUS GENERATION FOR MICROORGANISMS OCCURRED? HE RE-CONTAMINATED HIS BOILED BROTH SOLUTIONS
THE ARGUMENTS SUPPORTING SPONTANEOUS GENERATION WERE FINALL DISPROVED BY LOUIS PASTEUR
IF YOU WERE SETTING UP AN EXPERIMENT TO DISPROVE SPONTANEOUS GENERATION IN A LIQUID MEDIUM, WHICH OF THE FOLLOWING WOULD BE ESSENTIAL TO THE EXPERIMENT? USING A STERILE LIQUID AND ELIMINATING EXPOSURE TO MICROORGANISMS
IN WHICH OF THE FOLLOWING SITUATIONS WOULD KOCH'S POSTULATES BE UTILIZED. DETERMINATION OF THE CAUSE OF A NEW EMERGING DIEASE BY SCIENTISTS STUDYING DIEASE TRANSMISSION
THE MAJOR SIGNIFICANCE OF ROBERT KOCH'S WORK IS THAT MICROORGANISMS CAUSE DISEASE
PROOF THAT A MICROBE COULD CAUSE DISEASE WAS PROVIDED BY KOCH
ROBERT KOCH IDENTIFIED THE CAUSE OF ANTHRAX
WHICH STRUCTURE PROTECTS BACTERIA FROM BEING PHAGOCYTIZED? CAPSULE
BY WHICH OF THE FOLLOWING MECHANISMS CAN A CELL TRANSPORT A SUBSTANCE FROM A LOWER TO A HIGHER CONCENTRATION? ACTIVE TRANSPORT
WHICH OF THE FOLLOWING IS NOT PART OF THE PASSIVE TRANSPORT PROCESS ATP
WHICH OF THE FOLLOWING IS CORRECT ABOUT PASSIVE DIFFUSION IT INVOLVES MOVEMENT OF MOLECULES DOWN A CONCENTRATION GRADIENT AND MAY REQUIRE A TRANSPORT
WHICH OF THE FOLLOWING PLACES THE STEPS IN CORRECT SEQUENCE 2-3-1
WHICH OF THE FOLLOWING PLACES THE STEPS OF THE GRAM STAIN IN CORRECT ORDER? 2,4,1,3 CRYSTAL VIOLET, IODINE, ALCOHOL, SAFRANIN
WHICH OF THE FOLLOWING FINDINGS WAS ESSENTIAL FOR EDWARD JENNER'S VAX PROCESS EXPOSURE TO A MILDER DISEASE FORM MAY PRODUCE IMMUNITY
WHICH PHYSICIAN IS FIRST ASSOCIATED W VAX JENNER
PENICILLIN WAS DISCOVERED ON ACCIDENT BY ALEXANDER FLEMING
WHICH MICROSCOPE IS USED TO SEE INTERNAL STRUCTURES OF CELLS IN A NATURAL STATE PHASE CONTRAST MICROSCOPE
WHICH MICROSCOPE ACHIEVES THE HIGHEST MAGNIFICATION AND GREATEST RESOLUTION ELECTRON MICROSCOPE
The greater resolution of the electron microscope compared to the compound microscope is due to the longer wavelengths of the electrons used to examine specimens. FALSE
RECOMBINANT DNA REFERS TO THE DNA RESULTING WHEN GENES FROM 1 ORGANISM ARE INSERTED INTO ANOTHER ORGANISM
ONE EFFECT OF WASHING REGULARLY WITH ANTIBACTERIAL AGENTS IS THE REMOVAL OF NORMAL MICROBIOATA. THIS CAN LEAD TO INCREASED SUSCEPTIBILITY TO DISEASE
TF MICROOGRANISMS THAT ARE MEMBERS OF THE NORMAL MICROBIOATE ARE ALSO KNOWN TO CAUSE DISEASE. TRUE
NORMAL MICROBIOATE BOTH INDEFINETLY COLONIZE THE BODY AND TAKE UP RESIDENCE IN SITES SUCH AS THE COLON AND MOUTH
TF THE MALE URETHRA IS TYPICALLY STERILE FALSE
SIMPLE STAINING IS OFTEN NECESSARY TO IMPROVE CONTRAST IN WHICH MICROSCOPE COMPOUND LIGHT MICROSCOPE
Which of the following statements about gram-negative cell walls is FALSE? D) They are sensitive to penicillin.
Which type of stain is most useful in helping clinicians to decide which antibiotic to prescribe for a bacterial infection? GRAM STAIN
You are performing a Gram stain on gram-positive bacteria and you stop after the addition of the first dye. What is the appearance of the bacteria at this point? PURPLE
Which step in the Gram stain is the critical step in differentiating gram-positive cells fro gram-negative cells? ALCOHOL ACETONE
AN ACIDIC DYE E) has a negatively charged chromophore and is used to stain the background in a negative stain.
TF In a completed Gram stain, gram-positive bacteria are purple. TRUE
ENDOTOXINS ARE PART OF THE GRAM NEGATIVE CELL WALL
Which microscope achieves the highest magnification and greatest resolution? ELECTRON MICROSCOPE
The biosafety level (BSL) for most introductory microbiology laboratories is BSL 1
The biosafety level (BSL) for a clinical microbiology laboratory working with potentially airborne pathogens, such as tuberculosis bacteria, is BSL 3
In Figure 6.3, which tube shows the expected growth pattern for a microaerophile? E (MIDDLE DOTS)
In Figure 6.3, which tube shows the expected growth pattern for a facultative anaerobe? B (HEAVY TOP, SCATTERED DOWN)
Which of the following methods is used to preserve food by slowing the metabolic processes of foodborne microbes? FREEZING
WHICH OF THE FOLLOWING IS THE BEST DEF OF GENERATION TIME THE LENGTH OF TIME NEEDED FOR A CELL TO DIVIDE
WHICH OF THE FOLLOWING SUBSTANCES IS USED FOR SURGICAL HAND SCRUBS CHLORHEXIDINE
WHICH OF THE FOLLOWING IS THE BEST METHOD TO STERILIZE HEAT-LABILE SOLUTIONS MEMBRANE FILTRATION
WHICH OF THE FOLLOWING CHEMICAL AGENTS IS USED FOR STERILIATION ETHYLENE OXIDE
WHICH OF THE FOLLOWING IS A LIMITATION OF THE AUTOVLAVE? IT CANNOT BE USED WITH HEAT-LABILE MATERIALS
TF ALL FORMS OF LIFE FUNCTION OPTIMALLY AT THE PH OF 7 FALSE
ASSUME YOU ARE GROWING BACTERIA ON A LIPID MEDIUM THAT STARTED AT PH7. THE ACTION OF BACTERIAL LIPASES SHOULD CAUSE THE PH OF THE MEDIUM TO DECREASE-BECOME MORE ACIDIC
WHICH ONE OF THE FOLLOWING STATEMENTS IS A REASON FOR NOT CLASSIFYING VIRUSES IN ONE OF THE 3 DOMAINS OF LIFE RATHER THAN IN A 4TH SEPARATE DOMAIN VIRUSES ARE NOT COMPOSED OF CELLS
OXYGEN CROSSES A PLASMA MEMBRANE THROUGH SIMPLE DIFFUSION
BY WHICH OF THE FOLLOWING MECHANISMS CAN A CELL TRANSPORT A SUBSTANCE FROM A LOWER TO HIGHER CONCENTRATION? ACTIVE TRANSPORT
THE DIFFERENT BETWEEN SIMPLE DIFFUSION AND FACILITATED DIFFUSION IS THAT F.D. REQUIRES TRANSPORTER PROTEINS
WHICH STEP IN THE GRAM STAIN IS CRITICAL STEP IN DIFFERENTIATING GRAM POSITIVE CELLS FROM NEGATIVE CELLS ALCOHOL-ACETONE
MOST BACTERIA GROW BEST AT PH 7
MOST FUNGI GROW BEST AT PH 5
WHICH DIAGRAM OF A CELL WALL POSSESSES LIPID A / ENDOTOXIN RESPONSIBLE FOR SYMPTOMS ASSOCIATED WITH INFECTION? GRAM NEGATIVE
WHICH DIAGRAM OF A CELL WALL HAS A STRUCTURE THAT PROTECTS AGAINST OSMOTIC LYSIS GRAM POSITIVE AND NEGATIVE
WHICH CELL WAS IS RESISTANT TO MANY ANTIBIOTICS GRAM NEGATIVE
WHICH CELL WALL CONTAINS TEICHOIC ACIDS GRAM NEGATIVE
WHICH DIAGRAM OF A CELL WALL IS DECOLORIZED BY A BRIEF EXPOSURE TO ALCOHOL GRAM NEGATIVE
WHICH OF THE FOLLOWING CORRECTLY TRACES THE PATH OF LIGHT THROUGH THE COMPOUND MICROSCOPE LIGHT SOURCE, CONDENSER, SPECIMEN, OBJECTIVE LENS, OCULAR LENS
WHAT STRUCTURE DOES LGIHT PASS THROUGH AFTER LEAVING THE CONDENSER IN A COMPOUND LIGHT MICROSCOPE SPECIMENT
THE RESOLUTION OF A MICROSCOPE CAN BE IMPROVED BY CHANGING THE WAVELENGTH OF LIGHT
THE PURPOSE OF THE OCULAR LENS IS TO MAGNIFY THE IMAGE FROM THE OBJECTIVE LENS
TF IN MEASURING TURBIDITY OF A CULTURE IN INDIRECT MEASUREMENT OF BACTERIAL GROWTH, ABSORBANCE AND TRANSMITTANCE ARE IDENTICAL AND INTERCHANGEABLE VALUES FALSE
Created by: asanchez27
 

 



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