Microbiology Exam Questions with 100% Correct Answers | Verified | Updated

Microbiology Exam Questions with 100% Correct Answers | Verified | Updated All of the following are components of peptidoglycan EXCEPT a. N-acetylglucosamine b. N-acetylmutamic acid c. lipopolysaccharide d. amino acids e. peptide cross-links - answerlipopolysaccharide Which is NOT a component of a Gram-Negative bacterium's wall? A. peptidoglycan B. teichoic acid C. N-acetylmuramic acid D. diaminopimelic acid E. N-acetylglucosamine - answerteichoic acid Bacterial shape is determined by a. tubulin and actin b. cell membrane c. cytoskeleton d. s-layers e. outer membrane - answercytoskeleton which name refers to having flagella attached at both ends of the cell? a. peritrichous b. lophotrichous c. monotrichous d. amphitrichous e. flagellated - answeramphitrichous Which of the following statements about the prokaryotic flagella is CORRECT? a. it's filament is made up of multiple types of proteins b. it is driven by the proton motive force c. it is made up of a single structure d. it moves with a whiplike motion - answerit is driven by the proton motive force the L-ring in flagella is found in a. all bacteria with flagella b. only bacteria with multiple flagella c. gram negative organisms with flagella d. gram positive organisms with flagella e. it is only found in archaea with flagella - answergram negative organisms with flagella The polar area chart was created by which famous scientist? - answerFlorence Nightingale The vaccination of small children with cowpox was pioneered by which famous scientist? - answerEdward Jenner Which famous scientist introduced proper hand washing technique with chlorine? - answerIgnaz Semmelweis "Runs" are bacterial movements that come from rotating a flagellum_________. a. clockwise b. counter-clockwise c. up and down d. in and out - answercounter-clockwise A patient arrives at a hospital. Doctors take samples and send them to the lab. The lab does 2 test on the samples. I. after gram stain, they found purple bacteria and II. microscopic examination found rod morphology the infecting organism in the patient has a. mycelia acid b. peptidoglycan c. teichoic acids d. B and C e. A and C - answerpeptidoglycan and teichoic acid You isolate a bacteria strain with modified peptidoglycan tetra peptide. The terminal D-alanine is replace by D-lysine, this does prevent cross-linking from occurring.We expect that organism to be resistant to? a. penicillin b. rifampicin c. vancomycin d. none of the above - answervancomycin all of the following people have contributed to the classification of microbes EXCEPT a. Ernst Haeckel b. Herbert Copeland c. Robert Whitaker d. Joseph Lister e. Lynn Margulis - answerJoseph Lister A student was studying a microorganism u