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Why did you stab the peptone iron agar instead of inoculating only the surface?
Wiki User
∙ 9y ago
Because the peptone iron agar is used to detect ANAEROBIC bacteria. If you stab it deep into the agar you allow the bacteria to grow in the absence of oxygen. If you only inoculated the surface the bacteria wouldn't grow.
Wiki User
∙ 9y ago
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Why would peptone ion agar be used in a biochemical test?
peptone agar is used to show the production of hydrogen sulfide
What is the source of nutrients in nutrient agar?
peptone, yeast extract,meat extract..
What is agar stab?
culture is stabbed deeply into the agar using an inoculating needle....
Inoculating an agar deep tube?
inoculation needle
The source of nutrients in nutrient agar is?
Peptone and beef extract
Why did you use an inoculating loop instead of a needle to make the transfers from the culture plates to the culture tubes?
A inoculating loop is used for transfers from culture plates to culture tubes instead of the inoculating needle because the needle could puncture the agar in tube. The loop is much easier as well to get liquid amount into the tube.
Role of peptone in nutrient agar?
Peptone is the simplified source of protein and can be readily uptake by the microorganism. In nurtient agar it is the basic component/nutrient after which beef or yeast extract is used which are supplementary nutrients.
What are selective media for aspergillus?
Peptone glucose agar (PGA) medium
Why must a straight inoculating needle be used when inoculating an agar deep tube?
This is important to prevent the inoculating needle from becoming stuck in the agar, taking out pieces of agar while trying to remove the instrument. This agar will get into the inoculum when sterilizing the needle on the flame, causing contamination to your sample.
What is the chemical composition of malt extract agar?
thats a good question but unforunately i dont now the answer
What is the nutrients in nurtient agar?
Beef extract for carbohydrates Peptone for protein and NaCl as salt
What is the name of the streak when you apply specimen to agar plate?
It is called a streak plate, inoculating the agar plate with a zig-zag motion.
