many cells
Red Blood cells take oxygen to the working muscles as it is required for respiration.
To all of the other cells of your body that need oxygen to live.
Capillaries take oxygen and nutrients from the blood to the cells in the body. They also remove waste products, such as carbon dioxide, from the cells.
When most cells take in oxygen, it goes into the mitochondria where it is used to produce energy in a process called cellular respiration.
Oxygen is released as a byproduct during photosynthesis when cells take in carbon dioxide. This oxygen is crucial for supporting respiration in living organisms.
the lung is where the hemoglobin take up the oxygen and the blood cells re-oxygenate
They inject it from pores and outside cells
The red blood cells have that function.
White
White
blood takes the impurities and carbon dioxide from the cells.
the red blood cells