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What is the essence of using flame in every inoculation experiment?
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The bottom of a test tube was covered with soot after an experiment which required heating. What kind of flame was used during the experiment?
A luminous flame
What evidence do you have that atoms of certain elements a flame with a specific color?
You do an experiment to gather this evidence and then develop a hypothesis to explain what you observe.
When the Bunsen burner is on but no experiment is being carried out why is it advisable to set it to the luminous flame?
So you don't burn yourself. If it's on and you're not paying attention to it, a luminous flame is easily glimpsed in your peripheral vision. If the flame was non-luminous, it's much harder to detect and causes a greater risk. the non-luminous flame also burns much hotter.
Provide two examples of how the Bunsen burner is used during inoculation of a tube culture?
A loop is sterilized by inserting it into a Bunsen burner flame until it is red hot. 1) This will incinerate any contaminating organisms that may be present. 2) This will ensure that viable cells are transferred.
What is the blue flame called of a Bunsen burner?
The blue flame is called a roaring flame and the yellow flame is called the safety flame.
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 do you perform cold flame experiment with phosphorus?
cold flame forms
The bottom of a test tube was covered with soot after an experiment which required heating. What kind of flame was used during the experiment?
A luminous flame
What is Bunsen Burner used for?
A Bunsen burner produces heat and creates a heat source when doing an experiment. It uses methane and there is two flames a safety flame-you can put your hand through it without burning your hand and a roaring flame-this flame is blue and it is what you use when you preform an experiment.
Why would an electric heater be used rather than a flame for a distillation experiment?
bacasuse it goes every where and more easy a than gating wood yo just push the button
What is the size and length of inoculation loop?
Inoculation loops can be purchased in different sizes, either in metal for flame sterilisation or in plastic for use with pathogens which are disposed of after a single use. Typically they range from 0.25 - 0.5cm internal diameter.
Why is it important to do the experiment with the blue flame first?
It's not. This is just an arbitrary rule for you to follow.
When would you use a blue flame in a lab situation?
when you are doing an experiment that involves "the effect of heat on a ..."
Why is it advice to work near the flame during aseptic technique?
It is advice to work near a flame during aseptic technique because it has to be performed under sterile conditions. Working near a flame allows for flame sterilization which would promote sterilization to the experiment you are working on.
Why a luminous flame is not used as a source of heat in a laboratory experiment?
Because it makes the apparatus black when heating
The olympic flame is relite every how many years?
About every 2 years.
Is there a different flame every 4 years?
all
