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Microbiology: Bacteria and View Feedback

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Microbiology: Bacteria and View Feedback
Question 1 | | 1 / 1 point |
Microbes are not responsible for ________. | | synthesis of acetone and alcohol | | | breaking down wastes | | | synthesis of vitamins | | | antibody production | | | oxygen generation via photosynthesis | View Feedback | | Correct! |

Question 2 | | 1 / 1 point |
The cell theory states that ________ are made up of cells. | | protozoa | | | archaea | | | plants | | | all living things | | | animals | Question 3 | | 1 / 1 point |
In Pasteur's swan-neck flask experiment, the importance of the S-shaped curves in the flasks was twofold. The curves allowed entry of air, and yet excluded ________. | | oxygen | | | nutrients | | | airborne bacteria | | | broth | | | heat | Question 4 | | 1 / 1 point |
Pasteurization was first developed to kill ________ in wine. | | endospore-producing bacteria | | | all bacteria | | | disease-causing bacteria | | | antibiotic-producing bacteria | | | spoilage bacteria | Question 5 | | 1 / 1 point |
Robert Koch's studies on Bacillus anthracis established a sequence of experimental steps to prove that microbes ________. | | can be altered to produce products such as human insulin | | | degrade toxic wastes | | | control insect pests | | | recycle elements such as nitrogen | | | cause disease | View Feedback | | Correct! |

Question 6 | | 1 / 1 point |
An exposure to ________ protects against infection with smallpox. | | antibody | | | chemotherapy | | | penicillin | | | normal microbiota | | | cowpox | View Feedback | | Correct! |

Question 7 | | 1 / 1 point |
Ehrlich searched for a/an ________. This is a chemical that would hunt down and destroy a pathogen without harming the infected host. | | animalcule | | | vital force | | | vaccine | | | magic bullet | | | pathogen | View Feedback | |
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