oxyhemoglobin
I don't know of any common cell that uses oxygen gas. The cells that I know of use dissolved oxygen delivered by the bloodstream.
Red blood cells, also known as erythrocytes, are responsible for carrying oxygen in the bloodstream. They contain hemoglobin, a protein that binds to oxygen in the lungs and transports it to tissues throughout the body.
blood
Animals get oxygen for cell respiration from the air through a process called breathing. Oxygen is inhaled into the lungs where it enters the bloodstream and is carried to the cells throughout the body.
Yes, since they carry oxygen through the bloodstream, which is vital.
Your bloodstream can't store oxygen for an extended period; it just transports it from the lungs to where it is needed.
Red blood cells carry oxygen to every cell in your body. It is transported from the lungs to the tissues where it is needed for cellular respiration. Oxygen binds to hemoglobin in red blood cells and is then circulated throughout the body via the bloodstream.
The alveoli in the lungs allow for the exchange of oxygen from the air to the bloodstream, where it can then be transported to tissues and organs throughout the body. Tunnels formed by tiny blood vessels called capillaries surround the alveoli, facilitating the transfer of oxygen into the bloodstream.
Oxygen diffuses into cells from the bloodstream due to a concentration gradient, where oxygen is higher in the blood compared to inside the cells. This diffusion occurs passively, moving from an area of higher concentration (blood) to an area of lower concentration (cells), to meet the cell's energy demands for cellular respiration.
Oxygen is transported from the lungs to the body's cell by the red blood cells in the blood. The oxygen attaches to the iron atoms that are attached to the haemoglobin with in the blood. (haemoglobin is reason the blood is red. haeme or heme is a red pigment that makes up haemoglobin)
Smoking coats the cell surfaces with tar, interfering with the passing of oxygen into the bloodstream and the passing out of impurities from the blood.
Oxygen is the gas that passes from the lungs to the bloodstream.