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Blood is considered a connective tissueThe bone marrow produces both the red and white blood cells.
Vitamin B12
The B vitamin that helps to make new cells is called folate. It is also needed for the construction of DNA and is the most needed prenatal vitamin.
Insulin is made in the pancreas, not by blood cells. They have other jobs to do.
Red blood cells (erythrocytes) make up almost half of the blood. They are responsible for carrying oxygen from the lungs to the rest of the body and removing carbon dioxide.
Vitamin B12
Proteins helps cells function normally and help the body to make energy. Also proteins help red blood cells deliver oxygen. Minerals also help build strong bones.
Atoms make up everything. You may be thinking of cells. As far as cells, red blood cells and white blood cells make up blood.
Blood is considered a connective tissueThe bone marrow produces both the red and white blood cells.
You can become anemic if you have a B12 deficiency. The vitamin is needed to make hemoglobin for your red blood cells.
The element iron is needed to make hemoglobin, which holds the oxygen that the cells carry to all parts of the body.
Blood plasma make up some 70% of the total volume of blood. This is necessary because the plasma is the only fluid portion of the blood, and is needed to dissolve the proteins and to carry the blood cells.
Red blood cells make up about 90% of your blood cells, while white blood cells make up only about 10%.
iron
White Blood Cells make a chemical called Interferon, which white blood cells use to kill bacteria and germs.
Some are: iron (needed to make red blood cells), calcium (needed to make bones and teeth), iodine (needed to make thyroid hormones), potassium and sodium (needed to operate cellular membrane pumps), sulfur (needed to make strong hair), phosphorus (needed for strong teeth), etc.
Vitamin B12