Do red blood cells only carry oxygen while platelets carry waste material like carbon dioxide?

Question

A science encyclopedia said that red blood cells only carry oxygen. Is that true?

Answer 1

hemoglobin is like a bus, there are many hemoglobin molecules found in every red blood cell....it picks up passengers......they are (1) oxygen at the lungs and deliver to the cells at the capillary level....then it picks up its tired out tourists from the cells and they are called (2) carbon dioxide, which is then shuttled back to the lungs and exchanged for oxygen.....when we exhale, we dump out our CO2 in our breath.....platelets are flat and their benefit is in filling holes in veins that have been ripped open, such as when we fall off our bikes and tear open the skin on our knees...GL

Answer 2

As always, the answer is rather complicated. Red cells contain hemoglobin and the principal function of hemoglobin is to carry oxygen. The oxygen is carried bound to an iron atom in the center of the hemoglobin molecule.

As for carbon dioxide, a small amount (10% or so) is carried on the hemoglobin molecule (but not at the iron site where oxygen is carried). Another small portion is carried dissolved in the water portion of the blood (aka the plasma). The vast majority of it is converted to bicarbonate molecules and are carried dissolved in the plasma.

Platelets are involved in clotting and don't carry anything.

Answer 3

Platelets are for clotting blood, they do not carry anything.

Answer 4

yes

Answer 5

yes its true