When a tube of blood is centrifuged, erythrocytes end up on the bottom of the tube.
If the hematocrit is sealed at the end of the tube toward the outside of the centrifuge rack, this ensures that the hematocrit is properly centrifuged with the red blood cells compacted at the bottom. This positioning helps in accurate measurement of the packed cell volume, which is an essential parameter in assessing the patient's blood composition.
Depends who you buy your red top tubes from, but mostly no. A serum seperator tube (SST) is usually yellow or gold top, it has a lump of clear gel in the bottom. When spun this gel ends up between the serum and red blood cellsmaking it easier to seperate the serum. A red top is generally a tube with nothing at all in it. So when spun you end up with serum and clotted red cells but nothing seperating them. Most other colour tubes contain an anti coagulant preventing the blood from clotting so when spun you end up with plasma and red cells. The important thing for most tests is the difference between serum and plasma, so a red top and an SST can generally be used for the same tests although SST is often prefered as its easier to work with.
The head end of a tube can be the closed end. This depends on what the tube's purpose in the car is.
The end product of glycolysis in erythrocytes is pyruvate. This is because erythrocytes lack mitochondria, so they are unable to proceed with aerobic metabolism and generate ATP through oxidative phosphorylation. Instead, pyruvate is converted to lactate in order to regenerate NAD+ and allow glycolysis to continue producing ATP in the absence of oxygen.
A short tube on the end of a hose is called a nozzle.
Mile End tube station was created in 1902.
Tube Alloys ended in 1952.
Test tube
Electrons move from the negative end of the tube to the positive end because they are negatively charged particles that are attracted to the positive charge. This movement creates an electric current in the circuit.
short tube on the end of a hose
Osterley tube station ended in 1934.
Shoreditch tube station ended in 2006.