Questions and Answers
What is the main function of red blood cells in the body?
What is the lifespan of a red blood cell?
Where are red blood cells first born?
What is the shape of a red blood cell?
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What is the main component of hemoglobin that gives blood its red color?
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What is the percentage of red blood cells in our blood?
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What happens to a red blood cell after four months?
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What is the role of hemoglobin in red blood cells?
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How many red blood cells can be found in one drop of blood?
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What is the function of hemoglobin in terms of oxygen?
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Study Notes
What is a Red Blood Cell?
- Red blood cells are tiny cells that carry oxygen around the body and remove carbon dioxide from the body.
- They are responsible for giving blood its red color.
Characteristics of Red Blood Cells
- Red blood cells are shaped like flat circles or disks, similar to a smushed Starburst candy.
- They are born in the bones, which have all the necessary tools to produce red blood cells.
- Red blood cells have a limited lifespan of around four months, after which they break apart into tiny pieces that are used to make new red blood cells.
Hemoglobin
- Hemoglobin is a molecule made of iron that lives inside red blood cells.
- It is responsible for carrying oxygen to other cells that need it and gives red blood cells their red color.
- Hemoglobin picks up oxygen from the lungs and carries it to the entire body, from the head to the toes.
- It also acts as a "dump truck" to remove carbon dioxide from the body by loading it and carrying it out of the body.
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Description
Learn about the composition and functions of red blood cells in the human body, including their role in carrying oxygen and removing carbon dioxide.
