0
Want this question answered?
Be notified when an answer is posted
Add your answer:
Earn +20 pts
When using a Bunsen burner why do you use the blue flame for heating?
The blue flame is hotter then the orange one. Plus the temperature of the flame is not constant in a orange flame but it is more constant in a blue one.
Flaming an inoculating loop?
There is no "set" time limit. For proper aseptic technique, you should wait until the inoculating loop/needle is visibly red so that all organisms are dead, etc.
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 flame that continuously stay lit in the older model gas stoves?
It is called a pilot light.
Why doesn't the eternal flame go out?
The eternal flame is designed to stay lit indefinitely by using a constant fuel source, such as natural gas or propane, which is continuously supplied and monitored by a system. The flame's design and location also help protect it from wind or other elements that could extinguish it.
Examples of constant variables in flame test?
The temperature of the flame.
When using a Bunsen burner why do you use the blue flame for heating?
The blue flame is hotter then the orange one. Plus the temperature of the flame is not constant in a orange flame but it is more constant in a blue one.
How would you make sure a inoculating loop was sterile?
Pass the loop through a flame 2 or 3 times for about 10 seconds at a time.
Flaming an inoculating loop?
There is no "set" time limit. For proper aseptic technique, you should wait until the inoculating loop/needle is visibly red so that all organisms are dead, etc.
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.
Why must it e flamed after making an inoculation?
We use to flame the inoculating loop after inoculation because during inoculation many bacterial cell get attached to loop which can further contaminate the inoculation of other cells so to destroy the previous sticked celled it is necessary to flame burn the loop
How will you know when you have flamed the inoculating loop or needle long enough?
when we show the flame in the loop ,for 1 minute its gets brownish colur
What is the Burning Lamp in a synagogue?
The Ner Tamid or Eternal Flame is a representation of the eternal flame that existed in the Great Temple in Jerusalem. In that Temple, there were flames on the sacrificial altar that were always burning. This constant light is a symbol of God's constant presence.
What criterion indicates that you are heating the solution in the test tube with a cool flame?
cool flame is used when you want to maintain your liquid at a constant elevated temp.
What are the other inoculating instruments aside from needle?
Aside from the inoculating needle, an inoculation loop, is a simple tool used mainly by microbiologists to retrieve an inoculum from a culture of microorganisms. Its tip is a wire made of platinum or nichrome, the latter being inferior but less expensive. The wire forms a small loop with a diameter of about 5 mm. This loop is handy for taking an inoculum from a liquid by using the phenomenon of surface tension. It is also called a smear loop, inoculation wand or microstreaker, The loop is used to cultivate microbes in Agar jelly and to use the streak maneuver to transfer microbes. The inoculation loop is always sterilized in a flame until it becomes red hot before and after each use. By doing this, the same tool can be reused in different experiments without fear of cross-contamination. After flame sterilization, the loop must be cooled so that the next cells to touch the loop don't instantly die.
How does a bic lighter work?
http://ask.metafilter.com/25940/How-do-bic-lighters-maintain-such-a-constant-flame
What is the flame that continuously stay lit in the older model gas stoves?
It is called a pilot light.
