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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.

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What is a vortex machine that is used in a microbiology lab?

A vortex machine in a microbiology lab is a device that rapidly shakes or agitates samples in tubes to mix or resuspend them. It is commonly used for things like reagent mixing, cell culture resuspension, or sample homogenization. This helps ensure uniformity and consistency in experimental procedures.


Purpose of flash tubes on gas cooker?

Flash tubes distribute the gas from the main burner to the ignition source (pilot light or igniter) to ensure proper and efficient ignition of the gas. They contribute to the safe and reliable operation of the gas cooker by directing the gas flow in a controlled manner for ignition.


In microbiology what is the primary use of slants?

Slants are primarily used in microbiology to provide a larger surface area for microbial growth compared to agar deeps or plates. They are commonly used for the maintenance and storage of microorganisms, as well as for the evaluation of motility and oxygen requirements of bacteria.


What are the different types of tubes used for blood collection?

The different types of tubes used for blood collection include serum tubes, plasma tubes, anticoagulant tubes, and specialized tubes for specific tests.


What are the different types of tubes used for blood collection and how do they differ in terms of their purpose and composition?

There are several types of tubes used for blood collection, including EDTA tubes, serum tubes, heparin tubes, and plasma tubes. These tubes differ in their purpose and composition. EDTA tubes are used for collecting blood for complete blood counts and other hematological tests, containing an anticoagulant called EDTA. Serum tubes are used for tests that require serum, such as chemistry tests, and do not contain any anticoagulant. Heparin tubes contain the anticoagulant heparin and are used for tests that require plasma, such as coagulation studies. Plasma tubes also contain an anticoagulant and are used for tests that require plasma, such as glucose testing.

Related Questions

What element is used in vacuum tubes and is known for a ruby red flame test?

Strontium is the element used in vacuum tubes and is known for producing a characteristic ruby red flame test when heated.


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.


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?

What is cesium? Cesium is a highly reactive alkali metal that is not typically found for sale at Arbee's. It is commonly used in vacuum tubes due to its ability to efficiently emit electrons. When cesium is burned, it produces a distinctive ruby-colored flame, making it easily identifiable in a flame test.


What is the purpose of durham tubes?

Durham tubes are used in microbiology to detect gas production by microorganisms during fermentation. They are small inverted tubes placed inside larger culture tubes filled with a growth medium. If gas is produced by the microbes, it gets trapped in the Durham tube, indicating positive fermentation. This method helps assess the metabolic activity of bacteria and other microorganisms.


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


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.


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.


What is the use of culture tubes?

Culture tubes are used in microbiology laboratories to grow and maintain microorganisms for research, testing, and identification purposes. They provide a controlled environment for the growth of bacteria, fungi, and other microorganisms, allowing scientists to study their growth characteristics, morphology, and biochemical properties. These tubes are often used in experiments involving bacterial cultures, antibiotic susceptibility testing, and preservation of microbial strains.


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.


When heating a substance over a Bunsen burner where should the object be placed for the most efficient heating?

The object should be placed in the hottest part of the flame, which is the tip of the inner blue cone. This is where the flame burns the hottest and will provide the most efficient heating. Be sure to adjust the height of the object to control the temperature and prevent overheating.


What is observed with the heated test tubes using a burner with closed air holes?

When using a burner with closed air holes to heat test tubes, the flame will be yellow and sooty due to incomplete combustion. This is because the lack of oxygen hinders the complete conversion of the fuel to carbon dioxide and water. Additionally, the test tubes may become dirty from the soot deposits.