Homework Answers
The colonies of bacteria growing on a solid agar plate differ in size shape, color, and texture. The colony morphology technique is used to describe characteristic features of a colony-forming bacteria on the agar plate.
MacConkey agar
It is widely used to differentiate bacterial colonies based upon their ability to ferment lactose. The lactose fermenting bacteria appear to be pink in color with a precipitation ring of bile salts, while a lactose non-fermenting bacteria appear to be colorless.
it is used to distinguish between gram-negative bacteria based upon their ability to ferment lactose.
Rose agar plate
It is an advance and improved form of blood agar which is widely used as selective growth media to isolate colonies of gram-positive bacteria
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Can colony morphology be done from a MacConkey or Rose agar plate? Why or why not?
a) Will all gram positive organisms grow on a rose agar plate? ecplain why or why...
a) Will all gram positive organisms grow on a rose agar plate? ecplain why or why not. b) Will all gram negative organisms grow on a MAC agar plate? explain why or why not. c) Can colony morphology be done from a MAC or Rose agar plate? why or why not.
Date: Group: Name: Table 2. Bacteria isolated from the skin on the blood agar plate. Colony...
Date: Group: Name: Table 2. Bacteria isolated from the skin on the blood agar plate. Colony type-II Colony type-l Colony type-III Gram stai Colony morphology, margin, elevation, color, etc. Hemolysis Table 3, Bacteria isolated from the rectal area on the EMB plate. Colony type-I Colony type-III Colony type-II Gram stain Colony morphology, margin, elevation, color, etc. Colony arrangement 4. Review questions d. In summary, what is the major purpose of this experiment? What are four reasons for knowing which microorganisms...
What are the reuslts of the macconkey salt agar and the msa plate. please explain in...
What are the reuslts of the macconkey salt agar and the msa
plate. please explain in detail
..1 T-Mobile 12:36 PM Done Attachment 1 of 4 37A 37A 37B MAC MSA
How would you verify that the colonies that grew on a MacConkey agar plate were Gram...
How would you verify that the colonies that grew on a MacConkey agar plate were Gram negative? What types of bacteria are inhibited on MacConkey agar?
1. Apple tells his friends that he has recorded the colony morphology of his unknown by...
1. Apple tells his friends that he has recorded the colony morphology of his unknown by looking at the negative stain and Gram stain results, and the cell morphology from his streak for isolation on a Nutrient Agar plate. If you were Apple’s friends, how would you respond to Apple? 2. Helicobacter pylori, an organism that can live in the human stomach and cause ulcers, is urease positive. Why would that be an advantage to the organism?
On EMB agar containing E. coli, what should the colony morphology be? Select one or more:...
On EMB agar containing E. coli, what should the colony morphology be? Select one or more: a. Shiny metallic green surface on colonies b. Fish eye colonies c. Dark, black colonies d. Beige, round colonies
9. What is the role of bile salts and crystal violet in MacConkey agar? 10. Why...
9. What is the role of bile salts and crystal violet in MacConkey agar? 10. Why do non-fermenters form white/colorless colonies on MacConkey agar? 11. How does NaCl in Mannitol Salt agar kill organisms? 12. How is Staphylococcus aureus differentiated from other Staphylococci species on Mannitol Salt agar?
See Hint Consider the colonies growing on this sorbitol MacConkey agar plate. Which component of the...
See Hint Consider the colonies growing on this sorbitol MacConkey agar plate. Which component of the medium is being metabolized by the ones that appear colorless? Troy Biological BD Worldwide Choose one: A. peptone B. agar C. neutral red D. sorbitol E. sodium chloride < 18/18
“3. What ingredient(s) makes MacConkey agar differential?” Click here to enter text. “4. Why is an...
“3. What ingredient(s) makes MacConkey agar differential?” Click here to enter text. “4. Why is an indicator dye used in MacConkey agar?” Click here to enter text. “5. What are some potentially pathogenic bacteria that are lactose fermenters that will grow on MacConkey agar?” Click here to enter text.
This will show you colony morphology or basic information of what your organism would look like...
This will show you colony morphology or basic information of what
your organism would look like on a TSA non-selective medium plate.
Some have short explanations. See if there are any clues from the
morphology and then decide what your next step will
be.
This is my sample of TSA non-selective plate. I am not really
sure on what the question is really asking. Im not sure what
information i can get from this TSA plate.
13m
Date: Group: Name: Table 2. Bacteria isolated from the skin on the blood agar plate. Colony type-II Colony type-l Colony type-III Gram stai Colony morphology, margin, elevation, color, etc. Hemolysis Table 3, Bacteria isolated from the rectal area on the EMB plate. Colony type-I Colony type-III Colony type-II Gram stain Colony morphology, margin, elevation, color, etc. Colony arrangement 4. Review questions d. In summary, what is the major purpose of this experiment? What are four reasons for knowing which microorganisms...
What are the reuslts of the macconkey salt agar and the msa
plate. please explain in detail
..1 T-Mobile 12:36 PM Done Attachment 1 of 4 37A 37A 37B MAC MSA
9. What is the role of bile salts and crystal violet in MacConkey agar? 10. Why do non-fermenters form white/colorless colonies on MacConkey agar? 11. How does NaCl in Mannitol Salt agar kill organisms? 12. How is Staphylococcus aureus differentiated from other Staphylococci species on Mannitol Salt agar?
See Hint Consider the colonies growing on this sorbitol MacConkey agar plate. Which component of the medium is being metabolized by the ones that appear colorless? Troy Biological BD Worldwide Choose one: A. peptone B. agar C. neutral red D. sorbitol E. sodium chloride < 18/18
This will show you colony morphology or basic information of what
your organism would look like on a TSA non-selective medium plate.
Some have short explanations. See if there are any clues from the
morphology and then decide what your next step will
be.
This is my sample of TSA non-selective plate. I am not really
sure on what the question is really asking. Im not sure what
information i can get from this TSA plate.
13m
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