Two ways cyanide kills

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oso
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Two ways cyanide kills

Post by oso » Tue Apr 19, 2005 10:41 pm

im in grade 11 too, and doing bio by correspondence, and they're asking me for two ways that cyanide can kill. I know the one about stopping the ETS so that no more ATP is produced...but what's the other way?
Last edited by oso on Wed Apr 20, 2005 3:03 am, edited 1 time in total.

Systemor123
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Post by Systemor123 » Wed Apr 20, 2005 1:51 am

Cyanide kills because it binds to a cytochrome that is needed to transfer electrons down the electron transport pathway for oxidative phosphorylation. Without this flow, there is no electron transport, the entire system backs up so the cause of death is lack of ATP.

But you already apparently know that!

So the other way it kills is by occupying the oxygen-binding site in hemoglobin, the blood's
oxygen-carrying protein. This makes the hemoglobin unable to transport
oxygen to the body's tissues and organs. If enough of the hemoglobin
binding sites are blocked this way, you cannot get enough oxygen to
survive.

oso
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Post by oso » Wed Apr 20, 2005 2:50 am

i don't completely understand half of what you said, but i'm figuring it out, at least i know what im trying to do now, you're amazing! thanks alot! :D :lol:
Go big or go home.

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biostudent84
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Post by biostudent84 » Wed Apr 20, 2005 3:08 am

Simplest terms.

Hemoglobin is a lock. Oxygen is a key. Cyanide is the krazy glue that some jocker put into the lock to prevent the key from being able to go in.

Yes, I know I've been hazed before for using this example...but it is the simplest way to explain it. And easiest way to understand.

oso
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Post by oso » Wed Apr 20, 2005 4:08 am

:D thanks again
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MrMistery
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Post by MrMistery » Tue Apr 26, 2005 7:46 pm

What's wrong, Kyle? Running out of analogies?
"As a biologist, I firmly believe that when you're dead, you're dead. Except for what you live behind in history. That's the only afterlife" - J. Craig Venter

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cytochromeP
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Post by cytochromeP » Wed Apr 27, 2005 4:59 am

Nice analogy Kyle
Know thyself.

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biostudent84
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Post by biostudent84 » Wed Apr 27, 2005 2:31 pm

MrMistery wrote:What's wrong, Kyle? Running out of analogies?


LOL! I go with what works.

P.S. I'm back in the IRC channel now.

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Post by Sharon » Wed May 11, 2005 2:51 am

Glad I came across this forum; it's exactly what I need.

My Gr 12 Science ISP is this:

"Cyanide and Arsenic are deadly poisons that kill by the way they affect the metabolism of the cells. Describe in detail what metabolic pathways and exactly how they are affected."

Does anyone know any sites that have good information on Cyanide/Arsenic? (also, if anyone knows sites that have good visuals, eg tables or diagrams, I'm kind of a visual learner.)

Thanks,
Sharon

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Re: Two ways cyanide kills

Post by CellFreak » Tue Nov 25, 2008 1:42 am

Thanks for this post, im having to write a paper about this. Thanks A Lot!!

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