What is a day in a life of a red blood cell?

Answer 1

A normal healthy white blood cell lives for approximately 12 hours. Whereas a healthy red blood cell lives for about 90 days. Although blood is produced from healthy bone marrow and constantly producing new red and white blood cells.

Answer 2

Rise and shine
All cells start out life as a stem cell which, rather like a child progressing through school to college and university, must decide what to be when they grow up. The ones that choose to be red blood cells (RBCs) ditch their DNA as they mature in the bone marrow, a process which takes about 48 hours.

Mid-morning
Rather than stopping for elevenses, RBCs would rather do their morning exercises. They are extremely flexible, and because of their biconcave disc shape (a bit like a donut without the hole fully pierced) they can bend and twist to fit through the tiniest of capillaries. This clever shape also provides the biggest possible surface area for diffusion of gas into and out of the blood.

Lunch time
Favourite foods for red blood cells include spinach, broccoli and red meat, or anything with a high iron content. They use the iron in these foods to make haemoglobin - the molecule which binds oxygen and carbon dioxide. Each cell contains 270 million molecules of haemoglobin; these are what give blood that delightful red hue. If we don't eat enough iron, we can't make enough haemoglobin, which can lead to anaemia.

Afternoon
After all that eating, it's time for the RBCs to get down to some serious work. Their day job involves picking up deliveries of oxygen from the lungs, navigating the maze of arteries and capillaries to reach their destination, our body tissues, and then unloading the goods. They even pick up the carbon dioxide that is produced as a by-product of chemical reactions and ferry it via our veins back to the lungs to be exhaled.

Goodnight
Red blood cells certainly adhere to the 'live fast, die young' philosophy. After about 120 days, they are destroyed in the liver, the spleen or in the bone marrow itself. But worry not! There are 2 million new little O2 couriers being made every second, ready to take up the mantle of keeping us alive.

Answer 3

The average life span of a red blood cell is 120 days. Many red blood cells are removed from circulation each day, but the number of cells in circulation remains stable.

This process is controlled by homeostatic mechanisms.

Answer 4

lifespan of the white blood cell is 30 days and lifespan of the red blood cell is 120 days

Answer 5

The lifespan of white blood cells ranges from 13 to 20 days, after which time they are destroyed in the lymphatic system.

Answer 6

White blood cells life span is 10 hours to decades

Answer 7

They have sex with eachother.

Answer 8

30 days