Agar is a gelatinous substance obtained from certain red seaweeds and used in biological culture media and as a thickener in foods. It is NOT alive and therefore can not grow . In view of this your question makes no sense.
yes
false
This type of agar is designed to grow gram-negative bacteria. It will not grow gram-positive bacteria due to a dye in the formula of the agar.
Yes, Enterobacter cloacae typically cannot grow on mannitol salt agar because it does not ferment mannitol. Mannitol salt agar is selective for salt-tolerant Staphylococci species that can ferment mannitol, producing acid and turning the agar yellow.
Yes, agar needs to be fully solidified before bacterial growth can be observed. Semi-solid agar may not provide enough support for bacterial colonies to grow and be visible.
You would expect the organism to grow better on nutrient agar because it is a general-purpose medium that supports the growth of a wide range of organisms. MacConkey agar, on the other hand, contains inhibitors that selectively inhibit the growth of Gram-negative bacteria, so the organism may not grow as well on this medium.
Yes, Haemophilus influenzae can grow on blood agar.
No, Alcaligenes faecalis will not grow on MacConkey agar. MacConkey agar is selective for gram-negative bacteria that ferment lactose. Alcaligenes faecalis is a gram-negative bacteria that does not ferment lactose, so it will not grow on MacConkey agar.
Corynebacterium xerosis typically grows on nutrient agar.
in the dark
Scientists often grow bacteria on agar plates because agar provides a solid surface for bacteria to thrive on. Agar is composed of nutrients that bacteria need to grow, making it an ideal medium for cultivating and studying bacteria in a controlled environment.
Eosin methylene blue (EMB) agar is selective for gram-negative bacteria, especially those that can ferment lactose. Common bacteria that grow on EMB agar include Escherichia coli and Enterobacter aerogenes. These bacteria are differentiated by their ability to ferment lactose, producing colonies that are metallic green or dark purple on EMB agar.
Inoculating an agar plate refers to transferring microorganisms onto the surface of the agar using a sterile inoculating loop. This allows the microorganisms to grow and form visible colonies that can be studied or identified.
Apples typically stay fresh for over a week. They can grow mold and the dark spots with slightly fuzzy centers are signs of mold. When apples are brown or dark on the outside, it is a sign that they can be moldy.
MacConkey agar
no
yes