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Heat rises. If the neck of your tube is hot, the air around it is rising away from the top of the tube. It is less likely to become contaminated with microbes you aren't interested in. Prokaryotes are ubiquitous. Sterile technique is critical if you want to study them.
Wiki User
∙ 13y ago
Wiki User
∙ 15y agoTo kill any bacteria on the rim of the tube. This would contaminate a culture if a loop is touched to the side of the glass tube near the top.
Wiki User
∙ 12y agoIt directs the air up and away from the tube preventing environmental contamination of the open tube
Wiki User
∙ 13y agothis process sterilizes the tube
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Purpose of flash tubes on gas cooker?
On a gas stove or oven the flash tubes are the means of connecting the pilot light. The flash tubes carry the flame from the pilot light to the individual burners.
In microbiology what is the primary use of slants?
like a petri dish, slant agar provides a solid surface for growth of bacteria. Unlike the petri dish the culture tubes are easier to store and transport. hope that helps
How does the water and minerals move through the plant body?
They move through in tubes call xylem tubes while the food move through in tubes called pholem tubes.
What tube carries eggs to uterus?
The Fallopian tubes.
What part of the tree trunk has the living tubes?
The sapwood is the part of the tree trunk that has living tubes.
What element is used in vacuum tubes and is known for a ruby red flame test?
Rubidium
Purpose of flash tubes on gas cooker?
On a gas stove or oven the flash tubes are the means of connecting the pilot light. The flash tubes carry the flame from the pilot light to the individual burners.
What do you use test tubes for?
Test tubes hold chemicals and are convenient when you need to mix liquids together. They can be used to pour or to hold a solution in order to heat it over a flame.
Can you make candles in toilet paper tubes?
yes but apparently you have to mix it with paraffin wax and what not. http://www.ehow.com/how_4707971_make-scented-soap-candles.html
Not for sale at Arbee's this alkali is a real go-getter in vacuum tubes and is known for its ruby-colored flame test?
Uranium is 238.
What is a Bunsen burner?
A Bunsen Burner is a controlled gas-burning heat source (a "gas candle") that supplies direct heat or flame for scientific experiments and research. (The flame can be blocked by screens to reduce the deposition of soot on test tubes and beakers.)
Your tubes are tied burned and clipped can you be pregnant?
You should torture, behead and nuke your tubes just to be sure.
In microbiology what is the primary use of slants?
like a petri dish, slant agar provides a solid surface for growth of bacteria. Unlike the petri dish the culture tubes are easier to store and transport. hope that helps
Why it is necessary to hold the neck of the tubes in the flame of Bunsen burner?
Experience, or indeed a little foresight shows that holding it anywhere else will result in getting your fingers or tongs burnt in the flame. Usually the thing you are trying to heat is at the bottom of the tube and the neck is farthest away from that.
How do you heat a test tube with a Bunsen burner?
the advantage of a blue flame is that it is more effecient(hotter flame less flue). the flame is hotter than a yellow one and no soot is produced which blackens test tubes
What happens if you get pregnant and your tubes are tied?
If you are pregnant and your tubes are tied afterwords, you should be fine. but that means you can't get pregnant again.
What choke tubes are used on a model 87 Ithaca?
The Ithaca Model 87 uses the Winchoke system model III tubes. The Model III tubes fit flush with the barrel muzzle. Other Winchoke tubes should also fit.
