by capiliaries
capillaries
capillaries
Capillary: A tiny blood vessel where substances are exchanged between the blood and the body cells.
to permit the exchange of nutrients and waste between the blood and tissue cells substances such as oxygen, vitamins minerals and amnio acids passes through the tissue fluid to nourish the nearby cells and substances such as carbon dioxide and waste are passed out of the cells.
Yes, onion cells do have intercellular space between them. These spaces allow for the movement of substances such as nutrients and gases within the onion tissue.
Capillaries via osmosis
capillaries
The cells of the nervous system that form the blood-brain barrier are called endothelial cells. These cells help regulate the passage of substances between the bloodstream and the brain to protect the brain from harmful substances and maintain a stable environment for proper brain function.
No, capillaries are what allows substances to go from the walls of the small intestine into your cells. Veins are what carry the blood (with cells inside) to the heart to be oxygenated.
Tissue.
Exocytosis takes substances out of the cell and endocytosis brings substances into the cell.