FREE AND STUDY GAMES ABOUT MBOI CH4 QUIZ EXAM

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FREE AND STUDY GAMES ABOUT MBOI CH4 QUIZ EXAM

QUESTIONS

Actual Qs and Ans Expert-Verified Explanation

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-Guarantee passing score -32 Questions and Answers -format set of multiple-choice -Expert-Verified Explanation Question 1: A bacterial cell exhibiting chemo taxis probably has: fimbriae, a capsule, thylakoids, flagella, MET achromatic granules

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flagella Question 2: T or f. gram negative bacteria do not have peptidoglycan in their cell walls.

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false Question 3: T/F...the prokaryotic cell membrane is a site for many enzymes and metabolic reactions

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true

Question 4: T/F...alcohol-based compounds can weaken the outer membrane

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true

Question 5: T/F...the slime layer gives bacteria a greater pathogenicity as compared to the capsule

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false Question 6: Serological analysis for bacterial identification typically involves using: analysis of the appearance of colonies, a microscope to det cell morphology or specific antibodies to the bacterial cell antigens

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specific antibodies to the bacterial cell antigens Question 7: T/F...Endospores of certain bacterial species can enter tissues in the human body, geminate and cause an infectious disease

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true Question 8: The term that refers to flagella at both poles is: amphitrichous, atrichous, lophotrichous, monotrichous, peritrichous

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amphitrichous Question 9: Spirochetes have a twisting & flexing locomotion due to appendages called: flagella, cilia, fimbriae, periplasmic flagella (axial filaments), sex pili

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periplasmic flagella (axial filaments) Question 10: Bacterial cells could have any of the following appendages except:flagella, cilia, finbriae, periplasmic flagella(axial filiments), sex pili

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cilia

Question 11: T/F...The first cells on earth were probably archaea

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true

Question 12: T/F... both gram positive and gram neg. cells have outer membranes

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false Question 13: The transfer of genes during bacterial conjugation involves rigid tubular appendages called: flagella, cilia, fimbriae, periplasmic flagella (axial filaments), sex pili

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sex pili Question 14: The term that refers to the presence of flagella all over the cell surface is: amphitrichous, atrichous, lophotrichous, monotrichous, peritrichous

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peritrichous Question 15: Chemo taxis refers to the ability to: move in response to light, move in response to a chemical, not move in response to chem., transport desired mol's into cell, none of above

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move in response to a chemical Question 16: The short, numerous appendages used by some bacterial cells for adhering to surfaces

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fimbriae Question 17: Peptidoglycan is a unique macromolecule found in bacterial: cell walls, cell membranes, capsules, slime layers, inclusions

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cell walls Question 18: Plasmids: are found in all bacteria, are essential for survival, cant be passed bet organisms,cant be passed onto progeny, are often the site of pathogenic genes

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are often the site of pathogenic genes

Question 19: The 2 functions of bacterial appendages are

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attachment and motility Question 20: The basal body of a flagellum is anchored into the : hook, outer membrane, cell wall, peptidoglycan layer, cell membrane

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cell membrane Question 21: T/F... bacteria in the genus mycoplasma and bacteria called L-forms lack cell walls

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true Question 22: The term that refers to the presence of a tuft of flagella emerging from the same

site: Amphitrichous, Atrichous, lophotrichous, monotrichous, peritrichous

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lophotrichous Question 23: The enzyme ____, that is found in tears and saliva, can hydrolyze the bonds in the glycan chains of certain bacterial cell walls:penicillinase,lysozyme,peptidase, all, none

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lysozyme Question 24: What structure does not contribute to the ability of pathogenic bacteria to cause disease: inclusions, fimbriae, capsule, slime layer, outer membrane of gram neg cell walls

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inclusions Question 25: The outcome of the Gram stain is based on diff in the cell's: ribosomes, inclusions, cell wall, cell membrane, flagella

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cell wall