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Cole Fore
Blume ch.7 25-40
Question | Answer |
---|---|
Bacteria that cause disease are called? | Pathogens |
______,or poisons, are made by some bacterial pathogens. | Toxins |
Some pathogens form thick walled structures called_________when environmental conditions are unfavorable; thus, they can survive for very long time periods. | Endospores |
______can prevent some bacterial infections. | Vaccines |
Vaccines are made from damaged or_______Bacterial cells. | dead |
Once injected, vaccines enable______blood cells in the body to recognize a particular type of bacteria and attack it if it appears at a later time. | White |
Describe the process of pasteurization. | The heat the milk to a high heat where it will kill most bacteria. |
Describe how saprophytes help other organisms in the environment. | Saprophytes help other organisms by breaking down dead things and recycling the nutrients. |
A. What kind of bacteria save farmers millions of dollars in fertilizer costs? B. What kinds of plants have these bacteria in their roots. | A. Nitrogen-Fixing bacteria B. Peas and peanuts have these in their roots |
Bacteria live in groups called colonies. Colonies are usually circular. The diameter of a particular bacterial colony is 16mm. The circumference of a circle is equal to π(3.14) times its diameter(C=πd) What is the circumference of the colony? | 50.24mm |
The organism that is helpful with fertilizer is (bacteria, cyanobacteria, or nitrogen-fixing bacteria) pick one. | Nitrogen-fixing bacteria |
The organism that is helpful with producing cheese is (bacteria, cyanobacteria, or nitrogen-fixing bacteria) pick one. | Bacteria |
The organism that is helpful with Food for fish is (bacteria, cyanobacteria, or nitrogen-fixing bacteria) pick one. | Cyanobacteria |
The organism that is helpful with Making medicines is (bacteria, cyanobacteria, or nitrogen-fixing bacteria) pick one. | Bacteria |
The organism that is helpful with cleaning up oil spills is (bacteria, cyanobacteria, or nitrogen-fixing bacteria) pick one. | Bacteria |
The organism that is helpful with decomposing other materials is (bacteria, cyanobacteria, or nitrogen-fixing bacteria) pick one. | Bacteria |