What would you expect to observe when a halophile that cannot ferment mannitol is cultured on mannitol salts agar? View Available Hint(s) Hint 1. What is mannitol salts agar? Good growth accompanied by no change in color of the medium. No observable growth. No observable growth accompanied by a change in color of the medium to yellow. Good growth accompanied by a change in color of the medium to yellow. Part D How is pathogenic Staphylococcus aureus distinguished from other species of Staphylococcus? View Available Hint(s) Staphylococcus aureus stains pink in a Gram stain. Staphylococcus aureus is able to grow on mannitol salts agar, while other members of the genus are not. Staphylococcus aureus is able to ferment mannitol, while other members of the genus are not. Staphylococcus aureus is coccus-shaped, while other members of the genus are not.
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What is mannitol salts agar? Mannitol salts agar is a type of agar used to culture halophiles. Halophiles are organisms that cannot ferment mannitol, so they need to live in a environment with mannitol as their only source of energy. Mannitol salts agar is a type Show more…
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Uninoculated plate A Mannitol Salts Agar plate is shown that has been inoculated with two different bacterial strains. For the bacterial species indicated by "B", what would be the correct interpretation of this experiment? a) The results indicate the bacterium is a non-lactose fermenter. b) This medium is only selective; other than the presence of growth, no other information can be gained from this experiment. c) The results confirm the bacterium can ferment mannitol. d) The results indicate the bacterium is a lactose fermenter. e) None of the above is correct.
Adi S.
Which of the following is considered a possible result of the Mannitol Salt Agar lab (Hint: result has a specific meaning in science)? Group of answer choices The organism is Gram-negative The organism is inhibited by NaCl The organism is Staphylococcus epidermidis Yellow colony growth with surrounding halo Organism does not ferment mannitol
Suman K.
Mannitol salt agar is a culture medium that contains high salt (NaCl) concentration, mannitol (a fermentable sugar), and a pH indicator that is yellow at acidic conditions and red at alkaline or neutral conditions. (Acids are released when microbes ferment mannitol.) The medium also contains other carbohydrates that allow growth of non-fermenting halophilic organisms. Non-halophilic organisms will not grow on this mannitol salt agar. When uninoculated, the medium is red. Question: If you inoculate a non-halophilic mannitol fermenter, what color will the medium be after incubation? red yellow clear
Sloka M.
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