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Are Erythrocytes Red Blood Cells Living Cells
And what you say about terminal differentiation, many point out a key inconsistency between defining multicellular life and unicellular life which I think requires reevaluation by biologists one could still argue that the fully differentiated cell is still CAPABLE of reproduction, assuming the right circumstances evolve, RBCs do not have the enzymatic machinery in place to preform the process Nike Air Max Zero Purple
It is true that red blood cells do not divide to produce more cells, even in organisms in which they have nuclei, but that is hardly unusual among differentiated cells. I might say it alive because it has a cell membrane, or because it not square, but no one could argue!
Do they undergo metabolism, per se? Or at least any more so than a collection of synthetic enzymes injected into the right environment would. Both may be "metabolically active" but they would run out and break down over time, eventually. Like a relic from Nike Air Max 1 Fb Yeezy
What are the normal white Blood and red Blood cells number for a normal human? Due to my poor health situation which has persisted for 2 years now, i was told to go for.
Personally, I think they might be considered more of a dead cell that is re purposed, it still has some reactions sputtering out over several months, but it been turned into a sack for transport purposes. Possibly evolved because there takes more energy to dispose of a cell then to take advantage of it selectively permeable membrane for transport of oxygen. They are just as much alive as our living skin cells which are said to die and slough off as dead skin cells. Our blood cells do contain DNA in a nucleus when they are first formed. In fact they like every other cell in our body (except for sex cells) all contain the same amount of genetic material all 23 chromosomes, until in their case, they expel their nucleus. Red blood cells shed their nucleus to make more room in their structure for storing hemoglobin as an oxygen carrier. This is the same reason they lack many of the cellular organelles found in other free living cells.
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Red Blood cells in frog and human What are the difference between human red Blood cells from frogs red Blood Cells?Red blood cells are not living cells in the sense that they divide and replicate, but they are living in the sense that they perform a function even if passively. When we think of living or life, we tend to think of the ability to self replicate or divide, you are absolutely right in asking this, as Erythrocytes, or red blood cells, don contain 23 pairs of chromosomes or any DNA like the rest of our cells. Instead, red blood cells are made in the bone marrow at a rate of about 2 million per second in a healthy adult, the cells live after maturation for about 100 to 120 days before being removed from circulation by macrophages (part of the immune system), it is important to note that red blood cells also lack a nucleus and most of the cellular organelles. The different types of red blood cells, like A, B, and O refer to cell surface antigens which are inherited from both parents, however individuals with the same blood type can donate blood to one another without immune rejection. The red blood cells of many animals (including humans) lack nuclei, but erythrocytes of many birds, amphibians and camels are nucleated. Although even erythrocytes that contain nuclei do not divide, and the DNA isn actively transcribed, the genome is tightly packed into heterochromatin. The main function of erythrocytes, is of course to transport oxygen, and their cytoplasm is packed full of haemoglobin, as such they are highly specialized. I would still consider them to be living cells, they are not completely metabolically inactive, and they eventually and have to be replaced by newly matured erythrocytes. If a cell can die, then it must be alive before it dies.
You mention that they can divide anymore, but was this always the case? What about their parent cells? They surely gave divided to make the erythrocyte, but wouldn life require the ability to produce VIABLE offspring? Regardless, if they can reproduce anymore, then it sort of like saying someone can breath anymore! Somewhere there must have been a transition made. Nike Air Max 1 Red Black
Blood cells are described as having a life span of from 100 to 120 days and they are said to mature in 7 days from the stem cells they are formed from in the bone marrow. They contain enzymes that allow them to convert glucose into ATP as an energy source and they produce waste products. All of this seems points to their being alive. This parasite affects the red blood cells and causing them to burst and the host will have fever, chills and.
when they were alive.
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