They inject it from pores and outside cells
Cells take in water, sugar, oxygen, proteins, and other necessary materials.
Algae can release oxygen and take up carbon dioxide that permeates cells.
So that lots of ATP can be produced, which can then release energy for active transport. Remember that epithelial cell are cells that release substances and can take substances in (exocytosis and endocytosis). This requires energy, so there are therefore lots of mitochondria.
When mast cells degranulate, the release histamines
The Pancreas makes insulin which causes cells to take up glucose from the blood stream and store it as glycogen which causes cells to release their glucose into the bloodstream.
the t-cells release hormone-like substance called
Cells release Carbon Dioxide. This is due to respiration.
in fermentation, cells release energy without
During aerobic respiration, cells take in O2 and release CO2, H2O, and ATP.
Algae can release oxygen and take up carbon dioxide that permeates cells.
So that lots of ATP can be produced, which can then release energy for active transport. Remember that epithelial cell are cells that release substances and can take substances in (exocytosis and endocytosis). This requires energy, so there are therefore lots of mitochondria.
Breathing is the movement of air into and out of the lungs. Respiration is the exchange of oxygen and carbon dioxide. Oxygen is picked by and carried to the cardiovascular system and taken to the cells. The cells take up the oxygen and release the carbon dioxide back into the CVS and out to the lungs. The lungs take in oxygen and release carbon dioxide.
When mast cells degranulate, the release histamines
The Pancreas makes insulin which causes cells to take up glucose from the blood stream and store it as glycogen which causes cells to release their glucose into the bloodstream.
Cells store and release energy through the use of the mitochondria, an organelle contained within it.
Exocytosis is the process used to release insulin from pancreatic cells into the bloodstream.
Lung cells are little bubbles that take in air and take out air
That is correct. People and animals consume oxygen and release carbon dioxide, while plants consume carbon dioxide and release oxygen. It's a match made in heaven.