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> Which enumeration technique would be best for a very old culture? A) Viable plate counting...
1) During streak plate technique, the loop is heated in between the sector of quadrants. This...
1) During streak plate technique, the loop is heated in between the sector of quadrants. This ensures a) To get dense colonies b) To get individual isolated colonies c) To differentiate Gram positive and Gram negative bacteria c) To kill the infectious microorganism Streak plate is a a) Qualitative isolation method b) Quantitate isolation method c) Non dilution isolation method d) None of the above A pure culture is best defined as a) group of microorganisms that are genetically similar...
11. Which of the following is most useful in representing population growth on a graph? a....
11. Which of the following is most useful in representing population growth on a graph? a. logarithmic reproduction of the growth curve b. a semilogarithmic graph using a log scale on the y-axis c. an arithmetic graph of the lag phase followed by a logarithmic section for the log, stationary, and death phases d. none of the above would best represent a population growth curve 12. Which of the following methods is best for counting fecal bacteria from a stream...
On a urine bacteriology culture blood agar plate at 24 hours, over 100,000 small, white colonies...
On a urine bacteriology culture blood agar plate at 24 hours, over 100,000 small, white colonies are observed. They are catalase positive and a side coagulase test s negative. Your next step is to A) report out over 1000,000 staphylococcus epidermidis/ml of urine B) Perform a Gram stain C) Inoculate a Gram positive urine antibiotic susceptibility battery D) set up a tube E) ask for a repeat culture. Many fungal infections in oral pharyngeal, uro-gential and similar cultures are often...
calculate the generation time (minutes/generation) of 4.9*10^6 CFUs/ml calculate the generation time (minutes/ generation) of 155*10^8...
calculate the generation time (minutes/generation) of
4.9*10^6 CFUs/ml
calculate the generation time (minutes/ generation) of
155*10^8 CFUs/ml
for 3hrs 4.9*10^6
for 6hrs155*10^8
The students UR S pes at diferent times during the growth to do dilution plating and get viable plate counts. Here are the results for the samples taken at hours 3 and 6: 3 hours 10 dilution - too many to count 10"dilution - 476 CFUS 10% dilution - 49 CFUS 10 dilution = 5 CFUS 6 hours...
Please help!!! Very urgent 1362 Pre-laboratory Aetivity for Coefficient of Linear Expansion Refer to: EIU Physies...
Please help!!! Very urgent
1362 Pre-laboratory Aetivity for Coefficient of Linear Expansion Refer to: EIU Physies Department Laboratory Manual SP 2003, EIU Department of Physics and An Introduction to Error Analysis: The Study of Uncertainties in Physical Measurements 2d ed.. John R. Taylor. University Science Books, CA, 1997 Review of Least Squares Fit to a Line We often search for linear relationships between variables. In PHY 1352 the method of least squares was used as a technique to find the...
What instrument is used for food canning? Question 1 Not yet answered Select one: O a....
What instrument is used for food canning? Question 1 Not yet answered Select one: O a. autoclave Points out of 1.00 b. oven P Flag question c. regenerator d. steamer Question 4 When performing a gram stain, what is the purpose of heating the slide once the bacteria have been added? Not yet answered Points out of 1.00 Flag question Select one: a. kill the balleria b. attach the bacteria to the slide c. increase the permeability of the bacteria...
please help with whatever possible. thank you so much in advance. Name One use of serial...
please help with whatever possible. thank you so much in
advance.
Name One use of serial dilutions is to calculate the concentration of microorganisms. Since it would usually be challenging or even impossible to actually count the number of microorganisms in a sample, the sample is diluted and plated to get a reasonable number of colonies to count (usually between 25 to 250 colonies is the goal). Since each colony on an agar plate theoretically grew from a single microorganism,...
this is a very tough homework assignment for my environmental biology course so if everyone could...
this is a very tough homework assignment for my environmental
biology course so if everyone could please help me I would greatly
appreciate it because I have no access to tutors to check my
work.
which of the following is correct about binary fission? A) It is a common type of microbial cell division. B) Daughter cells are identicals. C) It leads to a microbial population. D) All of the above To decide if you should replace the existing antibacterial...
NEED HELP ASAP! Thank you in advance!! For Question D) it was asking which technique for...
NEED HELP ASAP! Thank you in advance!!
For Question D) it was asking which technique for gathering data
(sampling, experiment, stimulation or census) do you think was used
in the following studies?
d) An Australian study included 588 men and women who already had some precancerous skin lesions. Half got a skin cream containing a sunscreen with a sun protection factor of an inactive cream. After 7 months, those using the sunscreen with the sun protection had new precancerous skin...
Question 18 When attempting to isolate a gene of interest, what is most commonly the first...
Question 18 When attempting to isolate a gene of interest, what is most commonly the first step? Not yet answered Points out of 1.00 Select one: a. gel electrophoresis b. enzyme digestion P Flag question c. DNA extraction d. protein purification e. PCR Question 19 What must a growth media contain? Not yet answered Points out of 1.00 Flag question Select one: a. a carbon source, such as glucose. b. sources of carbon, nitrogen, phosphorus, and various trace metals c....
1) During streak plate technique, the loop is heated in between the sector of quadrants. This ensures a) To get dense colonies b) To get individual isolated colonies c) To differentiate Gram positive and Gram negative bacteria c) To kill the infectious microorganism Streak plate is a a) Qualitative isolation method b) Quantitate isolation method c) Non dilution isolation method d) None of the above A pure culture is best defined as a) group of microorganisms that are genetically similar...
11. Which of the following is most useful in representing population growth on a graph? a. logarithmic reproduction of the growth curve b. a semilogarithmic graph using a log scale on the y-axis c. an arithmetic graph of the lag phase followed by a logarithmic section for the log, stationary, and death phases d. none of the above would best represent a population growth curve 12. Which of the following methods is best for counting fecal bacteria from a stream...
On a urine bacteriology culture blood agar plate at 24 hours, over 100,000 small, white colonies are observed. They are catalase positive and a side coagulase test s negative. Your next step is to A) report out over 1000,000 staphylococcus epidermidis/ml of urine B) Perform a Gram stain C) Inoculate a Gram positive urine antibiotic susceptibility battery D) set up a tube E) ask for a repeat culture. Many fungal infections in oral pharyngeal, uro-gential and similar cultures are often...
calculate the generation time (minutes/generation) of
4.9*10^6 CFUs/ml
calculate the generation time (minutes/ generation) of
155*10^8 CFUs/ml
for 3hrs 4.9*10^6
for 6hrs155*10^8
The students UR S pes at diferent times during the growth to do dilution plating and get viable plate counts. Here are the results for the samples taken at hours 3 and 6: 3 hours 10 dilution - too many to count 10"dilution - 476 CFUS 10% dilution - 49 CFUS 10 dilution = 5 CFUS 6 hours...
Please help!!! Very urgent
1362 Pre-laboratory Aetivity for Coefficient of Linear Expansion Refer to: EIU Physies Department Laboratory Manual SP 2003, EIU Department of Physics and An Introduction to Error Analysis: The Study of Uncertainties in Physical Measurements 2d ed.. John R. Taylor. University Science Books, CA, 1997 Review of Least Squares Fit to a Line We often search for linear relationships between variables. In PHY 1352 the method of least squares was used as a technique to find the...
What instrument is used for food canning? Question 1 Not yet answered Select one: O a. autoclave Points out of 1.00 b. oven P Flag question c. regenerator d. steamer Question 4 When performing a gram stain, what is the purpose of heating the slide once the bacteria have been added? Not yet answered Points out of 1.00 Flag question Select one: a. kill the balleria b. attach the bacteria to the slide c. increase the permeability of the bacteria...
please help with whatever possible. thank you so much in
advance.
Name One use of serial dilutions is to calculate the concentration of microorganisms. Since it would usually be challenging or even impossible to actually count the number of microorganisms in a sample, the sample is diluted and plated to get a reasonable number of colonies to count (usually between 25 to 250 colonies is the goal). Since each colony on an agar plate theoretically grew from a single microorganism,...
this is a very tough homework assignment for my environmental
biology course so if everyone could please help me I would greatly
appreciate it because I have no access to tutors to check my
work.
which of the following is correct about binary fission? A) It is a common type of microbial cell division. B) Daughter cells are identicals. C) It leads to a microbial population. D) All of the above To decide if you should replace the existing antibacterial...
NEED HELP ASAP! Thank you in advance!!
For Question D) it was asking which technique for gathering data
(sampling, experiment, stimulation or census) do you think was used
in the following studies?
d) An Australian study included 588 men and women who already had some precancerous skin lesions. Half got a skin cream containing a sunscreen with a sun protection factor of an inactive cream. After 7 months, those using the sunscreen with the sun protection had new precancerous skin...
Question 18 When attempting to isolate a gene of interest, what is most commonly the first step? Not yet answered Points out of 1.00 Select one: a. gel electrophoresis b. enzyme digestion P Flag question c. DNA extraction d. protein purification e. PCR Question 19 What must a growth media contain? Not yet answered Points out of 1.00 Flag question Select one: a. a carbon source, such as glucose. b. sources of carbon, nitrogen, phosphorus, and various trace metals c....
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