MICROBIOLOGY-ACCESS >CUSTOM<
13th Edition
ISBN: 9780135668825
Author: Tortora
Publisher: PEARSON
expand_more
expand_more
format_list_bulleted
Question
Chapter 15, Problem 2A
Summary Introduction
To analyze:
The season in which, cyanobacterium Microcystis aeruginosa is the most toxic.
Introduction:
Microcystis aeruginosa is a bacterium found in freshwater. These cyanobacteria produce peptide hepatotoxins (cyanopeptolin and microcystin) and neurotoxins. Microcystis aeruginosa are increasing around the world due to increasing temperature, thus causing health issues to animals.
Expert Solution & Answer
Want to see the full answer?
Check out a sample textbook solutionStudents have asked these similar questions
d) Since we know this bacterial organism thrives in colder areas of the world, what
can be said about the effect of temperature on the growth patterns ofthis bacterial
organism? How would increasing the temperature affect the growth constant?
e) If the bacterial organism is resistant to antibiotics, how would administering
antibiotics affect the growth of this organism?
clostridium botulinum is a bacterium usually present in soil that may cause botulism. Briefly explain why one or few cells of a pathogenic bacterium, such as clostridium botulism, by itself typically does not secrete a toxin, despite the species as a whole being characterized as toxin producing.
Diseases that involve biofilm-producing bacteria are serious concern. They are not easily treated compared with those involving free-floating bacteria. Explain three reasons why biofilm formers are more pathogenic.
Chapter 15 Solutions
MICROBIOLOGY-ACCESS >CUSTOM<
Ch. 15 - Compare pathogenicity with virulence.Ch. 15 - How are capsules and cell wall components related...Ch. 15 - Prob. 3RCh. 15 - Explain how drugs that bind each of the following...Ch. 15 - Prob. 5RCh. 15 - Prob. 6RCh. 15 - Prob. 7RCh. 15 - Which of the following genera is the most...Ch. 15 - How can viruses and protozoa avoid being killed by...Ch. 15 - Prob. 10R
Ch. 15 - The removal of plasmids reduces virulence in which...Ch. 15 - Prob. 2MCQCh. 15 - Prob. 3MCQCh. 15 - All of the following can occur during bacterial...Ch. 15 - The ID50 for Campylobacter sp. is 500 cells; the...Ch. 15 - Prob. 6MCQCh. 15 - A drug that binds to mannose on human cells would...Ch. 15 - The earliest smallpox vaccines were infected...Ch. 15 - Prob. 9MCQCh. 15 - Which of the following statements is true? a. The...Ch. 15 - Prob. 1ACh. 15 - Prob. 2ACh. 15 - Prob. 3ACh. 15 - How do each of the following strategies contribute...Ch. 15 - On July 8, a woman was given an antibiotic for...Ch. 15 - Explain whether each of the following examples is...Ch. 15 - Cancer patients undergoing chemotherapy are...
Knowledge Booster
Similar questions
- Diseases that involve biofilm-producing bacteria are of serious concern. They are not as easily treated compared with those involving free-floating (or planktonic) bacteria. Explain three reasons why biofilms can be more pathogenic.arrow_forwardA microbe is only capable of growth at pH range of 8.5-10 in the presence of atmospheric levels of oxygen. Which statements are correct? Mark all that apply. A.)The microbe is likely to be a human pathogen B.)The microbe is a mesophile C.)The microbe is an obligate aerobe D.) The microbe is an alkiliphilearrow_forwardDiseases that involve biofilm-producing bacteria are of serious concern. They are not as easily treated compared with those involving free-floating (or planktonic) bacteria. Explain three reasons why biofilm formers are more pathogenic. Brian goes to the hospital after not feeling well for a week. He has a fever of 38 °C (100.4 °F) and complains of nausea and a constant migraine. Distinguish between the signs and symptoms of disease in Brian’s case.arrow_forward
- Pseudomonas bacteria have porin proteins, are resistant to the chemical triclosan, and survive and can even multiply in quaternary ammonium compounds. True or False?arrow_forwardWhen do we make the determination that a bacterium is Gram positive? A) Safranin washes the crystal violet die out of the cell wall. B) Crystal violet die is not able to absorb into the cell wall. C) Alcohol does not wash the crystal violet die out of the cell wall. D) Crystal violet turns the bacterium a yellow color.arrow_forwardWhy would a psychrophile not be a human pathogen?arrow_forward
- What type of bacterium can be oxygen dependent or independent.arrow_forwardBacteria that prefer to grow at room temperature at low pH are: Mesophilic acidophiles Microaerophilic alkalophiles Psycrophilic neutraphiles Thermophilic acidophilesarrow_forwardCharacterize and give a brief description of the following bacteria: Pseudomonas Salmonella typhiarrow_forward
- Explain why gram negative bacteria in general are more toxic than gram positive bacteria.arrow_forwardA bacterium is inoculated into a medium containing two carbon sources, one of which is the bacterium’s preferred carbon source. The resulting growth curve shows two lag phases. Explain this phenomenon. What is this type of growth called? Include a diagram of what the growth curve would look like and indicate the usage of each carbon source.arrow_forwardThis bacteria is commonly found in soil and water, and can cause otitis externa (aka swimmers ear). Pseudomonas aeruginosa Streptococcus pyogenes Staphylococcus aureus Staphylococcus epidermidisarrow_forward
arrow_back_ios
SEE MORE QUESTIONS
arrow_forward_ios
Recommended textbooks for you