Homework Answers
Endospores are defined as inactive, non reproductive, tough form produced by bacteria in response to hostile and unfavourable environment. They are produced by bacteria belonging to phylum firmicute. Endospores help bacteria to survive the stressful environment. This helps bacteria to remain intact for years and become active when the environment is favourable and cause diseases. The endospore formation makes killing of bacteria difficult and leads increase in pathogenicity.
How might snacking and pregnancy contribute to moderate obesity?
How might snacking and pregnancy contribute to moderate obesity?
Bacterial Quorum Sensing, Pathogenicity Islands, and Secretion Systems 1. Briefly describe how bacterial quorum sensing may...
Bacterial Quorum Sensing, Pathogenicity Islands, and Secretion Systems 1. Briefly describe how bacterial quorum sensing may play a role in pathogenicity by: a) Promoting initial colonization of a new host; b) Enabling the bacterium to persist within that host; and c) Allowing some of the bacteria to spread to a new location within a host or to a new host. 2. Briefly describe how the ability to produce a type 3 secretion system might play a role in a pathogen...
If a patient has an abnormality in telomerase activity, how might this contribute to cancer?
If a patient has an abnormality in telomerase activity, how might this contribute to cancer?
Pathogenicity and virulence differ in that: 1. pathogenicity refers to the over all ability of a...
Pathogenicity and virulence differ in that: 1. pathogenicity refers to the over all ability of a microbe to cause disease wheras virulence refers to the ability of one microbe to cause disease relative to another. 2. virulence only refers to pathogenic organisms, whereas pathogenicity refers to any microbe that can cause an infection. 3. virulence refers to the overall ability of a microbe to cause disease, whereas pathogenicity refers to the ability of one microbe to cause disease relative to...
MU DISCUSSION 1. What effect does the presence of a capsule have on pathogenicity! 2. Look...
MU DISCUSSION 1. What effect does the presence of a capsule have on pathogenicity! 2. Look up the definition for opsonin. How would opsonins affect the pathogenicity of a capsule 3. Define negative stain. 4. Define LPS.
6. Which of the following might contribute to maternal depletion (1-e)? Which might contribute to higher...
6. Which of the following might contribute to maternal depletion (1-e)? Which might contribute to higher infant mortality (f-j) (Yes or No for each and a phrase or sentence explaining why) [1 pt ea] Maternal Depletion? Infant Mortality? Late age at first birth (AFB) a. Large interbirth intervals (IBI) b. Late age at weaning Late age at last birth (ALB) d. High lifetime fertility (TFR) e. c.
Which worldview (Evolution or Creation) best explains the origin of pathogenicity in bacteria from the standpoint...
Which worldview (Evolution or Creation) best explains the origin of pathogenicity in bacteria from the standpoint of pathogenicity islands? How do the two worldviews account for the origin of pathogenicity islands in the first place?
29. Which of the following statements is true? A. Endospores are for reproduction B. Endospores are...
29. Which of the following statements is true? A. Endospores are for reproduction B. Endospores are readily stained in a Gram stain C. A cell can produce many endospores D. Endospores allow a cell to survive environmental change 30. In the figure below, the enzyme in step 1 is A. DNA polymerase B. reverse transcriptase C. RNA polymerase D. DNA ligase Nuclous DNA of cukaryotio 0 mRNA DNA strand being synthesized cDNA of gene without introns Cytoplasm 31. In the...
2. What does the presence of endospores indicate about a bacteria? 3. What does the absence...
2. What does the presence of endospores indicate about a bacteria? 3. What does the absence of endospores indicate about a bacteria?
Question 21 2 pts Which of the following might contribute to the stability of mutualisms over...
Question 21 2 pts Which of the following might contribute to the stability of mutualisms over evolutionary time: O A&B B: Host organisms'sanction cheater microbes that aren't contributing resources to the partnership A: The microbial partner stops benefiting the host organism but increases its own reproductive rate C: Host organisms prevent colonization from cheater microbes B&C
MU DISCUSSION 1. What effect does the presence of a capsule have on pathogenicity! 2. Look up the definition for opsonin. How would opsonins affect the pathogenicity of a capsule 3. Define negative stain. 4. Define LPS.
6. Which of the following might contribute to maternal depletion (1-e)? Which might contribute to higher infant mortality (f-j) (Yes or No for each and a phrase or sentence explaining why) [1 pt ea] Maternal Depletion? Infant Mortality? Late age at first birth (AFB) a. Large interbirth intervals (IBI) b. Late age at weaning Late age at last birth (ALB) d. High lifetime fertility (TFR) e. c.
29. Which of the following statements is true? A. Endospores are for reproduction B. Endospores are readily stained in a Gram stain C. A cell can produce many endospores D. Endospores allow a cell to survive environmental change 30. In the figure below, the enzyme in step 1 is A. DNA polymerase B. reverse transcriptase C. RNA polymerase D. DNA ligase Nuclous DNA of cukaryotio 0 mRNA DNA strand being synthesized cDNA of gene without introns Cytoplasm 31. In the...
2. What does the presence of endospores indicate about a bacteria? 3. What does the absence of endospores indicate about a bacteria?
Question 21 2 pts Which of the following might contribute to the stability of mutualisms over evolutionary time: O A&B B: Host organisms'sanction cheater microbes that aren't contributing resources to the partnership A: The microbial partner stops benefiting the host organism but increases its own reproductive rate C: Host organisms prevent colonization from cheater microbes B&C
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