Oxygen diffuses directly across the cell membrane and requires nothing to carry it.
Diffusion
Each haemoglobin molecule in the blood takes on 4 oxygen molecules in the lungs; that freshly-oxygenated blood returns to the heart for distribution around the body so the oxygen can be transferred to tissue cells needing it.
That depends on the type of cell. If the cell is anaerobic, like many types of bacteria, then absence of oxygen does nothing to them and they go about their business. If on the other hand the cell requires oxygen, like eukaryotes, then absence of oxygen will quickly kill the cell because it is unable to perform respiration.
The respiratory system seems like the obvious answer, but you used the word absorb. The respiratory system takes air into the lungs, but the red blood cells (erythrocytes) absorb the oxygen out of the air taken into the lungs. The circulatory system then delivers these red blood cells to the capillaries where the oxygen is traded for carbon dioxide as the cells need.
Since roots are embedded in the soil, they cannot photosynthesize. But the roots are actively growing and using energy. The best way to get the energy is to use the sugars being produced in the leaves in cellular respiration which requires oxygen and releases carbon dioxide.
Red blood cells transport oxygen, white blood cells defend against disease, ... This way remaining red blood cells can still oxygenate body tissue. .... true that receiving a unit of transfused bloodin the US does not carry many risks, ...
Viruses do not have complex membranes like eukaryotic organisms have. Viruses also do not have cells, nor are they technically living organisms. There is no need for viruses to control the movement of material in and out of the viral particles.
Cilia acts like a filter. It traps dirt particles that we inhale and moves these particles out of the body.
Yes they love the taste. It is quite different to normal particles but they taste like chicken.
Hemoglobin is a metalloprotein, containing iron, that is within red blood cells and binds to gasses like oxygen in order to transport those gasses in the blood.
That would be the Respiratory System. The respiratory system is responsible for the gas exchange in the cells of your body. When you inhale (or breathe in), air passes through your nose, down your windpipe, and into two tubes called the bronchial tubes. These tubes lead into your lungs. The tubes branch many times, like a tree, so that your lungs are filled with tiny tubes. The smallest tubes can only be seen with a very strong microscope. At the ends of these tubes are air sacs. Air is moved from the air sacs into the cells of the body by diffusion. This is the movement of a substance from an area with a lot of that substance to an area with less of the substance. When the oxygen-poor cells arrive in the lungs from the heart, the oxygen moves into the cells. The CO2 (carbon dioxide), on the other hand, is more concentrated in the cells, so it moves out of the cells, and into the air sacs. When you exhale (or breathe out), the CO2 leaves your body by the same path by which the oxygen entered. Breathing is only a part of voluntary movement. Part of the reason that you breathe is involuntary. It is caused by the movement of muscles called the diaphragm. This is a sheet of muscles beneath your lungs. When the diaphragm moves downward, it increases the space around the lungs. When the diaphragm moves up, it decreases the space around your lungs, and the air rushes out.
well they form because of the sourrounding particles like chicken pie
It moves vesicles, granules, organelles like mitochondria. They are like conveyer belts inside the cells.
Oxygen is carried around our body by blood cells. These are little particles like sand which make up the blood we see. There are also white blood cells which helps us get rid of unhydenic things in our body.
Each haemoglobin molecule in the blood takes on 4 oxygen molecules in the lungs; that freshly-oxygenated blood returns to the heart for distribution around the body so the oxygen can be transferred to tissue cells needing it.
So that they can see atoms and cells and other tiny things like particles
think is hemoglobin. or something like tht...
That depends on the type of cell. If the cell is anaerobic, like many types of bacteria, then absence of oxygen does nothing to them and they go about their business. If on the other hand the cell requires oxygen, like eukaryotes, then absence of oxygen will quickly kill the cell because it is unable to perform respiration.