Do you suspect a role for any gram + and/or gram - bacteria in the development...
Do you suspect a role for any gram + and/or gram - bacteria in the development of human cancers? Why or why not? What experimental approach can be done to test this hypothesis?
Homework Answers
ANSWER :
Non-small cell lung cancer (NSCLC) is the most common type of lung cancer (about 80 percent) and more frequently severed by gram negative (-ve) bacteria which increase the case of mortality in patients. Helicobacter pylori is also a Gram negative rod bacteria which cause ulcer in stomach parts and also increase the chances to development of gastric cancer.
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Do you suspect a role for any gram + and/or gram - bacteria in
the development...
Do you suspect a role for any gram + and/or gram - bacteria in the development...
Do you suspect a role for any gram + and/or gram - bacteria in the development of human cancers? Why or why not? What experimental approach can be done to test this hypothesis?
What effect do you suspect the following will have on your judgment of the Gram reaction...
What effect do you suspect the following will have on your judgment of the Gram reaction of an organism? Staining a thick smear made from an uneven cell suspense What will be observed and why? Using in old Grimm's crystal, violet preparation connecting crystallized dye: Substitution aqueous crystal violet for the Gram's Crystal violet:
How is the Gram stain used to classify bacteria? How do antibiotics inhibit the growth of...
How is the Gram stain used to classify bacteria? How do antibiotics inhibit the growth of bacteria? Explain how carriers play an important role in the transmission of pathogens. Jan acquired a MRSA infection during a stay at a rehabilitation facility. Jan’s physician tells her that her MRSA was caused by S. aureus. How would you explain to Jan what S. aureus is and how it can cause diseases?
why isn't the gram stain used on acid fast bacteria ?if you did Gram stain acid...
why isn't the gram stain used on acid fast bacteria ?if you did Gram stain acid fast bacteria ,what would their Gram reaction be?what is the gram reaction of non acid fast bacteria
Gram-positive and gram-negative bacteria differ in that A. Gram-positive bacteria have more peptidoglycan in their cell...
Gram-positive and gram-negative bacteria differ in that A. Gram-positive bacteria have more peptidoglycan in their cell walls. B. Gram-positive bacteria have fimbriae but gram-negative bacteria do not. C. Gram-positive bacteria are spiral-shaped, and gram-negative bacteria are either rod-shaped or spherical. D. Only gram-negative bacteria can form endospores. E. There is no difference between gram negative and gram positive bacteria F. Gram positive are positively charged and gram negative are negatively charges An unknown bacterial species was found in the blood...
66a. If you were to design a pathogenic bacteria justify why your bacteria would be Gram-positive...
66a. If you were to design a pathogenic bacteria justify why your bacteria would be Gram-positive or Gram- negative.
You have three pure cultures of bacteria. One is Gram positive bacteria and the other two...
You have three pure cultures of bacteria. One is Gram positive bacteria and the other two are Gram negative bacteria but you have mixed up the labels. You know that one of the Enteric bacteria can ferment glucose and produce ethanol and CO_2. The other can ferment glucose and produce lactic acid. Describe the general procedure you could perform to determine of the three cultures which one is which? A one gram sample of hamburger is diluted to 10^-4 in...
Test Purpose Reagents Observation Results Gram To determines the identify the bacteria as a gram positive...
Test Purpose Reagents Observation Results Gram To determines the identify the bacteria as a gram positive or a gram negative. Crystal violet, iodine, Alcohol ,safranin Pink rods Gram negative rods Oxidase To determine the presence of cytochrome oxidase enzyme . Oxidase paper Lactose To determine if the bacteria can ferment carbohydrate . None Indole Test To determine the bacteria’s ability to decompose amino acid tryptophane to indole. Kovac added to1ml of trypotone broth Optimum Temp To determine the bacteria’s ability...
please answer both questions Flc 2: Gram precipit Gram Selective for: Gram- enterics Bile salts and...
please
answer both questions
Flc 2: Gram precipit Gram Selective for: Gram- enterics Bile salts and crystal viole gram+ Differentiates between lactose and non lactose Neutral red dye is an indicator is a p indicator -organisms that ferment lacto lower the pH and colonies turn red kish, has bile ose negative) Ye You suspect a bacterial contamination on your culture plate. A. What would you do next and b. why? the Bonus: HD B1. How many bacteria will be on...
Question 18 4 pts What role do restriction enzymes play in bacteria? How do bacteria protect...
Question 18 4 pts What role do restriction enzymes play in bacteria? How do bacteria protect their own DNA from the action of restriction enzymes? Change the surface proteins of bacteria; since DNA is not protein, there is no need for protection Cut foreign DNA into pieces; bacteria have RNA genomes. Destroy invading viral DNA: bacterial DNA does not contain the restriction enzyme recognition sequences. Restrict the growth rate of bacteria; bacterial DNA is restriction enzyme resistant. Question 18 4...
What effect do you suspect the following will have on your judgment of the Gram reaction of an organism? Staining a thick smear made from an uneven cell suspense What will be observed and why? Using in old Grimm's crystal, violet preparation connecting crystallized dye: Substitution aqueous crystal violet for the Gram's Crystal violet:
66a. If you were to design a pathogenic bacteria justify why your bacteria would be Gram-positive or Gram- negative.
You have three pure cultures of bacteria. One is Gram positive bacteria and the other two are Gram negative bacteria but you have mixed up the labels. You know that one of the Enteric bacteria can ferment glucose and produce ethanol and CO_2. The other can ferment glucose and produce lactic acid. Describe the general procedure you could perform to determine of the three cultures which one is which? A one gram sample of hamburger is diluted to 10^-4 in...
please
answer both questions
Flc 2: Gram precipit Gram Selective for: Gram- enterics Bile salts and crystal viole gram+ Differentiates between lactose and non lactose Neutral red dye is an indicator is a p indicator -organisms that ferment lacto lower the pH and colonies turn red kish, has bile ose negative) Ye You suspect a bacterial contamination on your culture plate. A. What would you do next and b. why? the Bonus: HD B1. How many bacteria will be on...
Question 18 4 pts What role do restriction enzymes play in bacteria? How do bacteria protect their own DNA from the action of restriction enzymes? Change the surface proteins of bacteria; since DNA is not protein, there is no need for protection Cut foreign DNA into pieces; bacteria have RNA genomes. Destroy invading viral DNA: bacterial DNA does not contain the restriction enzyme recognition sequences. Restrict the growth rate of bacteria; bacterial DNA is restriction enzyme resistant. Question 18 4...
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