EvC Forum: Mamalian red blood cells

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Topic: Mamalian red blood cells

Theodoric

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From: Northwest, WI, USA

Joined: 08-15-2005

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Message 4 of 51 (500449)
02-26-2009 11:51 AM

Reply to: Message 1 by AlphaOmegakid
02-26-2009 9:19 AM

Premise is false

But did you know that these cells really no longer fit the definition of a biological cell? In fact they are dead!

Please supply any documentation that says these cells do not fit the definition of a biological cell.

Why would the lack of a nuclei mean the cell is dead? Since it can not create new cells means it is dead?

Science has determined how the red blood cells are created by the body to have no nuclei.

Here is some science.

Losing the nucleus enables the red blood cell to contain more oxygen-carrying hemoglobin, thus enabling more oxygen to be transported in the blood and boosting our metabolism.

His cell-culture system began with red blood cell precursors drawn from an embryonic mouse liver (in mammalian embryos, the liver is the main producer of such cells, rather than bone marrow as in adults). The cultured cells, synchronized to develop together, divided four or five times before losing their nuclei and becoming immature red blood cells.

During normal cell division, each daughter cell receives half the DNA, comments Lodish. In this case, when the red blood cell divides, one daughter cell gets all the DNA. What’s fascinating is that in this case, that daughter cell gets eaten by macrophages. Until now, scientists were unable to study these cells because they were unable to see them.

Unless you can validate the premise of your argument, then you have no argument at all.

Facts do not have an agenda. Facts are just Facts.

This message is a reply to:
	Message 1 by AlphaOmegakid, posted 02-26-2009 9:19 AM		AlphaOmegakid has replied

Replies to this message:
	Message 10 by AlphaOmegakid, posted 02-26-2009 1:34 PM		Theodoric has replied

Theodoric

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Posts: 9142

From: Northwest, WI, USA

Joined: 08-15-2005

Member Rating: 3.3

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Message 11 of 51 (500468)
02-26-2009 2:02 PM

Reply to: Message 10 by AlphaOmegakid
02-26-2009 1:34 PM

Re: Premise is true NOT

You have not given any evidence to prove the premise that red blood cells are dead.

According to the latest science(follow the link I provided earlier), they do not actually extrude their nuclei.

Wikipedia is far from the definitive info on cells. Are you saying since the RBC is specialized it is dead? Just because it cannot reproduce it is dead?

they can't convert nutrients into energy

According to your source they can.

As a result, the cells use none of the oxygen they transport; instead they produce the energy carrier ATP by fermentation, via glycolysis of glucose followed by lactic acid production.

Always best to provide the link to your source too. Like this maybe
Source

Do you happen to have a source that agrees with you that RBC's are some sort of dead cell? That they don't fit definition of a cell?

As this is a science forum, you really need something to back your assertion.

I would not consider discussing the process unless you can validate the premise. Which you have not.

Oh and it is spelled Mammalian.

This message is a reply to:
	Message 10 by AlphaOmegakid, posted 02-26-2009 1:34 PM		AlphaOmegakid has not replied

Theodoric

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Posts: 9142

From: Northwest, WI, USA

Joined: 08-15-2005

Member Rating: 3.3

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Message 32 of 51 (503326)
03-17-2009 8:02 PM

Reply to: Message 31 by shalamabobbi
03-17-2009 6:51 PM

Re: found the source..Did

Did you read any of their posts? Too painful for words. I am going to just leave them in their blissful, ignorance.

Facts don't lie or have an agenda. Facts are just facts

This message is a reply to:
	Message 31 by shalamabobbi, posted 03-17-2009 6:51 PM		shalamabobbi has not replied

Theodoric

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Posts: 9142

From: Northwest, WI, USA

Joined: 08-15-2005

Member Rating: 3.3

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Message 44 of 51 (509792)
05-25-2009 1:17 AM

Reply to: Message 43 by traste
05-25-2009 1:10 AM

traste

Have you ever considered posting anything on topic? Figured not. Just a troll. I hope others will learn and we can do a big ole group ignore of you.

Facts don't lie or have an agenda. Facts are just facts

This message is a reply to:
	Message 43 by traste, posted 05-25-2009 1:10 AM		traste has not replied

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