A test tube, also known as a culture tube, is a piece of laboratory glassware composed of a finger-like length of glass tubing, open at the top, with a rounded U-shaped bottom. Often, the top features a flared lip. This is to aid pouring of a liquid from the test tube to a beaker. A distinction between test tube and culture tube is often made, calling a tube with a lip a test tube and one without a lip a culture tube
Test tube rack is use to hold test tube when they are not in use.
to hold test tubes...
To help clean used test tubes.
Very simple, place the test tubes in the holder.
13x100 test tubes are excellent when you need to have larger volume in a test tube. These larger tubes allow more air to touch the sample.
Test tube racks are used to support the test tubes but unlike the test tube holder, it can store the test tubes without anyone who will hold the rack... hope this helps!
If the test tubes need to be sterile, you would have to autoclave them.
tools that the biologist use are microscopes, petri dish, laboratory, test tubes, beakers, and computers tools that the biologist use are microscopes, petri dish, laboratory, test tubes, beakers, and computers
Holding test tubes vertically so that the contents do not spill out.
To hold test tubes so that the liquid inside does not spill.
To clean inside test-tubes properly. If it didn't exist it would have to be invented.
You can use a wire instead of the starter to test the tubes .. I did it, it works !