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Flashcards in week 11 Deck (20):
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1) Which of the following statements is not correct? A) Eukaryotes are more complex than prokaryotes. B) Eukaryotes differ from prokaryotes in having a distinct nucleus and nuclear membrane (envelope). C) Eukaryotes are usually larger than prokaryotes. D) Eukaryotes are usually smaller than viruses. E) All of the above alternatives are correct.

1) Which of the following statements is not correct? A) Eukaryotes are more complex than prokaryotes. B) Eukaryotes differ from prokaryotes in having a distinct nucleus and nuclear membrane (envelope). C) Eukaryotes are usually larger than prokaryotes. D) Eukaryotes are usually smaller than viruses. * E) All of the above alternatives are correct.

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2) Which of the following microorganisms is not a eukaryote? A) a protozoa B) a bacterium C) a fungus D) an amoeba E) a yeast

2) Which of the following microorganisms is not a eukaryote? A) a protozoa B) a bacterium * C) a fungus D) an amoeba E) a yeast

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3) Which of the following best describes what happens when a bacterial cell is placed in a solution containing 5% NaCl? A) Water will move out of the cell. B) Water will move into the cell. C) Sucrose will move into the cell from a higher to a lower concentration. D) The cell will undergo osmotic lysis. E) No change will result; the solution is isotonic.

3) Which of the following best describes what happens when a bacterial cell is placed in a solution containing 5% NaCl? A) Water will move out of the cell. * B) Water will move into the cell. C) Sucrose will move into the cell from a higher to a lower concentration. D) The cell will undergo osmotic lysis. E) No change will result; the solution is isotonic.

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4) Which of the following statements is untrue? A) All fungi are multicellular. B) All viruses are parasites. C) All bacteria lack nuclear membranes. D) All fungi have nuclear membranes. E) All protozoa are unicellular.

4) Which of the following statements is untrue? A) All fungi are multicellular. * B) All viruses are parasites. C) All bacteria lack nuclear membranes. D) All fungi have nuclear membranes. E) All protozoa are unicellular.

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5) Which of the following does not have a plasmalemma (cell membrane)? A) Bacteria B) Viruses C) Fungi D) Protozoa E) Yeast

5) Which of the following does not have a plasmalemma (cell membrane)? A) Bacteria B) Viruses * C) Fungi D) Protozoa E) Yeast

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6) “MRSAs” were originally known as methicillin-resistant staphylococci aureus and are now known as multi-resistant staphylococci aureus. Which of the following statements is not true concerning MRSAs? A) They readily colonise the nose and the skin. B) They occur naturally and have not arisen through the overuse of antibiotics. C) They are resistant to all penicillin and methicillin products. D) They attack older people in hospitals and nursing homes and those with low immunity. E) MRSAs are not the same organism as VREs

6) “MRSAs” were originally known as methicillin-resistant staphylococci aureus and are now known as multi-resistant staphylococci aureus. Which of the following statements is not true concerning MRSAs? A) They readily colonise the nose and the skin. B) They occur naturally and have not arisen through the overuse of antibiotics. * C) They are resistant to all penicillin and methicillin products. D) They attack older people in hospitals and nursing homes and those with low immunity. E) MRSAs are not the same organism as VREs

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7) A "cocci" bacteria is shaped like: A) a rod B) a spiral C) a sphere D) Mickey Mouse E) None of the above

7) A "cocci" bacteria is shaped like: A) a rod B) a spiral C) a sphere * D) Mickey Mouse E) None of the above

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8) Gram stain is performed on the _____ of the cell: A) cell membrane B) genome C) cell wall D) ribosomes E) lysosomes

8) Gram stain is performed on the _____ of the cell: A) cell membrane B) genome C) cell wall * D) ribosomes E) lysosomes

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9) Gram negative bacteria are coloured ________________ in a Gram stain test: A) White B) Green C) Red D) Blue E) Yellow

9) Gram negative bacteria are coloured ________________ in a Gram stain test: A) White B) Green C) Red * D) Blue E) Yellow

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10) What consists of a nucleic acid genome packaged into a protein coat (capsid) or a membrane (envelope)? A) Virus B) Virion C) Bacteriophage D) Capsomere E) Pentamer

10) What consists of a nucleic acid genome packaged into a protein coat (capsid) or a membrane (envelope)? A) Virus * B) Virion C) Bacteriophage D) Capsomere E) Pentamer

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11) In a healthy human, resident microorganisms would be found in all of the following areas except: A) lower urethra B) conjunctiva C) Bloodstream D) tooth and gum surfaces E) nasal passages

11) In a healthy human, resident microorganisms would be found in all of the following areas except: A) lower urethra B) conjunctiva C) Bloodstream * D) tooth and gum surfaces E) nasal passages

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12) When the plague devastated the population of Europe in the Middle Ages, why did people catch the disease even if they didn't come into contact with infected people or dead bodies? A) The infectious organism washed out of bodies into the public water supply B) The infectious organism produced endospores that persisted in houses and public places C) The infectious organism persisted on nearly any surface in a state of non-growth activity and was readily picked up by unsuspecting people D) The infectious organism was transmitted from bodies to rats, then to fleas, and from fleas to people E) Both A) and B) above

12) When the plague devastated the population of Europe in the Middle Ages, why did people catch the disease even if they didn't come into contact with infected people or dead bodies? A) The infectious organism washed out of bodies into the public water supply B) The infectious organism produced endospores that persisted in houses and public places C) The infectious organism persisted on nearly any surface in a state of non-growth activity and was readily picked up by unsuspecting people D) The infectious organism was transmitted from bodies to rats, then to fleas, and from fleas to people* E) Both A) and B) above

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13) Which of the following is smallest in physical size? A) Yeasts B) Viruses C) Bacteria D) Fungi E) Parasites

13) Which of the following is smallest in physical size? A) Yeasts B) Viruses * C) Bacteria D) Fungi E) Parasites

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14) Which of the following can contain genes that can make an organism antibiotic resistant? A) Pili B) Capsule C) Flagella D) Plasmid E) Outer membrane

14) Which of the following can contain genes that can make an organism antibiotic resistant? A) Pili B) Capsule C) Flagella D) Plasmid * E) Outer membrane

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15) Which of the following depends on the biochemical machinery of the host cell for replication, and reproduction occurs by assembly of the individual components rather than by binary fission? A) Bacteria B) Fungi C) Viruses D) Parasites E) Yeasts

15) Which of the following depends on the biochemical machinery of the host cell for replication, and reproduction occurs by assembly of the individual components rather than by binary fission? A) Bacteria B) Fungi C) Viruses * D) Parasites E) Yeasts

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16) Which of the following is NOT a property of viruses? A) Viruses are filterable agents B) Viruses cannot make energy independently of a host cell C) Viral genomes may be RNA or DNA but not both D) Viral components must self-assemble E) Viruses are living organisms

16) Which of the following is NOT a property of viruses? A) Viruses are filterable agents B) Viruses cannot make energy independently of a host cell C) Viral genomes may be RNA or DNA but not both D) Viral components must self-assemble E) Viruses are living organisms *

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17) Which of the following statement about viruses is not correct? A) Viruses consist of DNA or RNA surrounded by a protein coat (capsid). B) Viruses are an acellular infectious agent. C) Viruses do not require host cell machinery in order to replicate. D) Viruses cannot survive for long outside a suitable host. E) Viruses are not prokaryotes.

17) Which of the following statement about viruses is not correct? A) Viruses consist of DNA or RNA surrounded by a protein coat (capsid). B) Viruses are an acellular infectious agent. C) Viruses do not require host cell machinery in order to replicate. D) Viruses cannot survive for long outside a suitable host. * E) Viruses are not prokaryotes.

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18) Viruses are not susceptible to antibiotics because A) Antibiotics work by targeting cellular machinery. B) Viruses are surrounded by an impenetrable cell wall. C) Viruses are not “alive”. D) Viruses have developed resistance to all antibiotics. E) All of the above

18) Viruses are not susceptible to antibiotics because A) Antibiotics work by targeting cellular machinery. * B) Viruses are surrounded by an impenetrable cell wall. C) Viruses are not “alive”. D) Viruses have developed resistance to all antibiotics. E) All of the above

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19) Which of the following is not fungal related? A) Cryptococcus neoformans B) Candida albicans C) Tinea nigra D) Chlamydiae E) all of the above

19) Which of the following is not fungal related? A) Cryptococcus neoformans * B) Candida albicans C) Tinea nigra D) Chlamydiae E) all of the above

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