Homework Answers
ANSWER.
* Flagella is an organelle present in the bacteria which helps in locomotion.
* Based on the presence and arrangement of flagella in the cell body we can
identify particular type of bacteria.
* If a bacteria have a single flagella is known as a monotrichus bacteria.
eg: Vibrio cholera.
* If a bacteria have a number of flagellas which originate from a same point
or area of the bacterial surface is known as a lophotrichus bacteria.
eg: Spirilla.
* If a bacteria have multiple flagellas which projecting from all directions of the
bacterial surface is known as a peritrichus bacteria. eg: Salmonella typhi.
* If a bacteria have two falgellas which are arranged in opposite ends known as
Amphitrichus bacteria. eg: Alcaligenes fecalis.
Add Answer to:
How do the presence & arrangement of flagella help in identifying the bacteria?
Bacterial Flagella Many pathogenic bacteria that infect the intestinal tract have flagella. (Hint: See Flagella, section...
Bacterial Flagella Many pathogenic bacteria that infect the intestinal tract have flagella. (Hint: See Flagella, section F.) 1. Why might having flagella better enable those bacteria to cause disease? 2. Most pathogenic spirochetes such as Treponema pallidum and Borrelia burgdorferi disseminate from the original infection site. How are they able to do this?
How would using the SEM provide information that can help you with identifying which organism is...
How would using the SEM provide information that can help you with identifying which organism is causing a disease? Would you be able to tell the difference between two different rod-shaped bacteria (say E. coli and Salmonella) using SEM? Or is there another type of microscope that could help you do that?
Naming bacteria based on morphology and arrangement
Naming bacteria based on morphology and arrangement
5. You have a bacteria that grows only the presence of oxygen, but you do not...
5. You have a bacteria that grows only the presence of oxygen, but you do not know if it is motile or not. What would you do to conclusively test for motility? A. Hanging drop B. Semi-solid motility agar C. Can use either of them D. Neither of them will
32 Exercise 6 Determination of Motility QUESTIONS 1. How do prokaryotic and eukaryotic flagella differ? 2....
32 Exercise 6 Determination of Motility QUESTIONS 1. How do prokaryotic and eukaryotic flagella differ? 2. How should you dispose of a hanging drop slide? 3. Why is it important to be able to determine motility? 4. Why are bacterial flagella not visible with a light microscope? 5. Which of the three methods of determining motility allow distinguishing of flagella arrangements?
QUESTION 12 Through the microscope, these bacteria appear as Gram-negative bacilli possessing a peritrichous arrangement of...
QUESTION 12 Through the microscope, these bacteria appear as Gram-negative bacilli possessing a peritrichous arrangement of flagella. They typically infect the intestinal tract in humans and animals and are transmitted by the fecal oral route. People usually become infected from ingesting improperly refrigerated, uncooked or undercooked poultry, eges, meat, or dairy products contaminated with animal feces. While around 50,000 cases are reported annually in the U.S., most cases go unreported and it is estimated that over 2,000,000 people a year...
What structure common to some bacteria would have doomed Pasteur's famous Swan-necked Flask experiment? (a) flagella...
What structure common to some bacteria would have doomed Pasteur's famous Swan-necked Flask experiment? (a) flagella (b) ribosomes (c) endospores (d) a cell wall (e) none of these is correct
QUESTION 13 Through the microscope, these bacteria appear as Gram-negative bacillus possessing a monotrichous arrangement of...
QUESTION 13 Through the microscope, these bacteria appear as Gram-negative bacillus possessing a monotrichous arrangement of flagella. A ubiquitous bacterium found in soil, water, vegetation, decaying organic matter, throughout the hospital environment, and frequently carried in the respiratory and intestinal tracts of hospitalized patients and immunocompromized hosts, this bacterium causes a variety of opportunistic infections including urinary tract infections, wound infections, pneumonia, and septicemia. This organism is also a significant cause of burn infection and also colonizes and chronically infects...
I need help with a couple questions How do fungi and bacteria function in many ecosystems,...
I need help with a couple questions How do fungi and bacteria function in many ecosystems, and what makes sponges different from other animals?
Chapter 4(microbiology) 1. What are the shapes and arrangements of bacteria cells? 2. Why is it...
Chapter 4(microbiology) 1. What are the shapes and arrangements of bacteria cells? 2. Why is it important to be able to identify the shape and arrangement of an unknown bacterial sample? 3. Differentiate between eubacteria and archaebacteria. 4. What are the differences between eukaryotes and prokaryotes? 5. Why would a microbiologist care about those differences? Be specific. 6. What are the basic parts of a prokaryote? (the parts found in all bacteria) 7. How do the cell walls of Gram...
5. You have a bacteria that grows only the presence of oxygen, but you do not know if it is motile or not. What would you do to conclusively test for motility? A. Hanging drop B. Semi-solid motility agar C. Can use either of them D. Neither of them will
32 Exercise 6 Determination of Motility QUESTIONS 1. How do prokaryotic and eukaryotic flagella differ? 2. How should you dispose of a hanging drop slide? 3. Why is it important to be able to determine motility? 4. Why are bacterial flagella not visible with a light microscope? 5. Which of the three methods of determining motility allow distinguishing of flagella arrangements?
QUESTION 12 Through the microscope, these bacteria appear as Gram-negative bacilli possessing a peritrichous arrangement of flagella. They typically infect the intestinal tract in humans and animals and are transmitted by the fecal oral route. People usually become infected from ingesting improperly refrigerated, uncooked or undercooked poultry, eges, meat, or dairy products contaminated with animal feces. While around 50,000 cases are reported annually in the U.S., most cases go unreported and it is estimated that over 2,000,000 people a year...
QUESTION 13 Through the microscope, these bacteria appear as Gram-negative bacillus possessing a monotrichous arrangement of flagella. A ubiquitous bacterium found in soil, water, vegetation, decaying organic matter, throughout the hospital environment, and frequently carried in the respiratory and intestinal tracts of hospitalized patients and immunocompromized hosts, this bacterium causes a variety of opportunistic infections including urinary tract infections, wound infections, pneumonia, and septicemia. This organism is also a significant cause of burn infection and also colonizes and chronically infects...
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