0
How long can agar be inside of a petri dish with no bacteria growing on it?
AlexisGreene
Agar can be kept in a petri dish in the refrigerator at 4 degrees Celsius for up to 7 days. If kept at room temperature there is a high chance of contamination occurring due to motile swarming bacteria such as Bacillus sp. or Proteus sp. All manufactured agar plates have an expiry date listed on the actual plate or optimum storage time and expiry date printed on the bottle of dehydrated media. It is generally a good idea to only make the amount of agar required to be used that day and avoid storage of the prepared plates for any period of time, this will allow for better results and less contamination. Also it is necessary to know which ingredients are present in the prepared media as some nutrients will degrade rapidly and should be used immediately after preparation.
Wiki User
∙ 13y ago
Wiki User
∙ 16y agoAdd your answer:
Earn +20 pts
What is the container used for growing mold or bacteria called?
the containor used for growing mold and bacteria is the PETRI DISH. a lot of people use agar as the gel to grow mold and bacteria
What equipment can be used to grow bacteria?
Agar and petri dishes.
What the most common way to grow bacteria is?
The most common way to grow bacteria is in an agar petri dish. The bacteria are usually placed by a swab into the petri dish and incubated for a predetermined period of time (The agar serves as a food source for the bacteria). Then, growth, or no growth, of bacteria will be observed.
Do you put agar in the petri dish before you put the swabbed bacteria?
yes
Why do you grow bacteria on agar jelly?
Put agar jelly in a petri dish to sterilize the dish and then use something like a sterile inoculating loop to put the bacteria on the jelly. Then, seal the petri dish but make sure it is not airtight.
What is the container used for growing mold or bacteria called?
the containor used for growing mold and bacteria is the PETRI DISH. a lot of people use agar as the gel to grow mold and bacteria
Can you use blood to grow bacteria on petridishes?
Bacteria will grow in blood but no the growing medium in petri dishes should be clear agar.
What equipment can be used to grow bacteria?
Agar and petri dishes.
What substance goes in a petri dish?
Any microorganism such as bacteria etc. *Agar jelly, a substance normally made from seaweed and is very nutritious for bacteria, moulds, etc.
Do you put agar in the petri dish before you put the swabbed bacteria?
yes
What the most common way to grow bacteria is?
The most common way to grow bacteria is in an agar petri dish. The bacteria are usually placed by a swab into the petri dish and incubated for a predetermined period of time (The agar serves as a food source for the bacteria). Then, growth, or no growth, of bacteria will be observed.
What is a Bacteria growing gel?
agar
What does agar in the petri dish provide the bacteria with?
A medium (substrate) to grow on and, depending on the agar, nutrients for growth. See link below for more information.
How much agar solution do you need for bacteria to grow on an agar plate?
Agar is a gelatinous substance extracted from seaweed. One of its many uses is to solidify nutrient broth used in growing bacteria on a petri dish. A petri dish is a two piece clear glass or plastic dish which keeps dirt or dust from falling into the sterile medium, but allows air to enter and carbon dioxide to leave.
What growing media grows bacteria?
nutrient agar
Is gelatin agar good for growing bacteria?
yes
Why are there areas on the agar jelly where no bacteria are growing?
There are areas on the agar plate where no bacteria grow because that area was missed when the plate was streaked.
