undigested food
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The nutrients and O do not come from the plasma to the body cells. They came from the red blood cells that deliver them (or so I thought). They then enter the capillaries and give the nutrients and O to the other cells and get the waste products like CO2.
Circulatory and excretory depends on the cells XD
From the iron in the Red Blood Cells
The answer is PLASMA.
The blood delivers oxygen to body cells and collects carbon dioxide waste from the cells. It transports nutrients and hormones throughout the body, maintaining the body's biochemical balance.
The main organs involved in removing waste from the body cells are the kidneys, which filter waste from the blood to produce urine, and the liver, which processes and eliminates toxins from the bloodstream. Other organs that play a role in waste removal include the intestines, which excrete solid waste, and the lungs, which eliminate carbon dioxide through breathing.
Allows for oxygen to be transported to the cells in your body, and transport the body's waste products out of the body.
In respiration, you breathe in oxygen and it goes into your blood and round to all your cells in the body and out of the cells come carbon dioxide as their waste product and that is why you breathe out carbon dioxide which is the consequense of RESPIRATION!
The excretory system.
Nutrients, oxygen, and waste products such as carbon dioxide come into and out of cells through the cell membrane. Nutrients and oxygen enter the cell to provide energy and support cellular functions, while waste products exit the cell to be removed from the body.
Carbon dioxide is the waste substance that is transported back to the lungs from the cells in the body. It is exhaled out as a waste product of cellular respiration.