red
Prevents foreign material from entering the cell; and allows nutrients and oxygen to enter while letting metabolites (waste or functional chemicals) out.
If you think of a cell within a tissue as a single cell floating in the ocean, you will realize that the ocean water moving around it brings nutrients and oxygen and carries away waste products. The same thing happens in every cell in an organism except they are not floating alone in the ocean, the salt water with nutrients and oxygen (blood) comes to each of them and then carries away waste products. If this doesn't happen, the cell will die.
In animal cells, the cell membrane; and in plant cells, the cell wall.
Transport proteins allow nutrients to enter and leave cells. Transport proteins are peppered throughout the cell membrane. Most molecules need the transport proteins to enter or leave the cell, but it's possible for some molecules, like water, to diffuse through the membrane by osmosis.
i don't know bout cell waste, but spleen is the organ that removes OLD RED BLOOD CELLS
Yes it does
Blood
Prevents foreign material from entering the cell; and allows nutrients and oxygen to enter while letting metabolites (waste or functional chemicals) out.
Prevents foreign material from entering the cell; and allows nutrients and oxygen to enter while letting metabolites (waste or functional chemicals) out.
cell membrane
The Plasma membrane.
It's called capillarization and means that every cell of your body organs/ tissues is getting blood supply for it to function properly by getting nutrients and oxygen from blood as well as eliminating waste products/toxins
blood blood
Cardiovascular system (consisting of the heart, blood and blood vessels).
Osteocytes are mature bone cells surrounded by matrix which solid bone cell ground substances attach to. Bone cells are in the proximity of blood vessels, just like any other cell in the body. Bones only have cells in their growth areas and in the bone marrow, where blood cells are also produced.
If you think of a cell within a tissue as a single cell floating in the ocean, you will realize that the ocean water moving around it brings nutrients and oxygen and carries away waste products. The same thing happens in every cell in an organism except they are not floating alone in the ocean, the salt water with nutrients and oxygen (blood) comes to each of them and then carries away waste products. If this doesn't happen, the cell will die.
No, carbon dioxide and waste are transported by the blood AWAY from each cell.