hydrochloric acid

For discussing the functions of different structures of all organisms.

Moderators: honeev, Leonid, amiradm, BioTeam

burningredphoenix
Garter
Garter
Posts: 37
Joined: Sun Nov 20, 2005 10:13 pm
Contact:

hydrochloric acid

Post by burningredphoenix » Mon Nov 21, 2005 9:26 pm

it's in the body, but where does body get it frm, it can't get it from salt

User avatar
Poison
Inland Taipan
Inland Taipan
Posts: 2322
Joined: Sun Jan 02, 2005 12:44 pm
Location: Turkey

Post by Poison » Mon Nov 21, 2005 9:29 pm

Why not from salt? salt is NaCl.
It matters not how strait the gate
How charged with punishment the scroll
I am the Master of my fate
I am the Captain of my soul.

User avatar
mith
Inland Taipan
Inland Taipan
Posts: 5345
Joined: Thu Jan 20, 2005 8:14 pm
Location: Nashville, TN
Contact:

Post by mith » Mon Nov 21, 2005 9:38 pm

I got the impression that HCl is created from proton pumps. I was doing my Russian history homework yesterday and I read about Rasputin and how he survived cyanide(incredible story, he survived like 3 assasination attempts). Anyway he had a disease that inhibits production of HCl.

http://en.wikipedia.org/wiki/Achlorhydria
Living one day at a time;
Enjoying one moment at a time;
Accepting hardships as the pathway to peace;
~Niebuhr

burningredphoenix
Garter
Garter
Posts: 37
Joined: Sun Nov 20, 2005 10:13 pm
Contact:

No, it can't come from salt

Post by burningredphoenix » Tue Nov 22, 2005 3:14 am

It can't come from salt, The ion concentration would increase, however, the voltage difference would just rebond Cl to Na .

User avatar
Poison
Inland Taipan
Inland Taipan
Posts: 2322
Joined: Sun Jan 02, 2005 12:44 pm
Location: Turkey

Post by Poison » Tue Nov 22, 2005 4:41 pm

So what is NaCl used for in your body?
It matters not how strait the gate
How charged with punishment the scroll
I am the Master of my fate
I am the Captain of my soul.

User avatar
MrMistery
Inland Taipan
Inland Taipan
Posts: 6832
Joined: Thu Mar 03, 2005 10:18 pm
Location: Romania(small and unimportant country)
Contact:

Post by MrMistery » Tue Nov 22, 2005 6:27 pm

NaCl is a soruce of minerals, nothing more. Na and Cl are some of the most important minerals in the body. But the concentration is a fixed point(homeostazy) so eating more NaCl won't help you have more minerals in the body.
Now, Dave is right. HCl is not present in the cells of the stomach(i think the reason is obvious) so cells excrete K+ and Cl- separatly into the lumen by active transporters, and then they combine to form HCl, which is so important for the digestion process
"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

User avatar
victor
King Cobra
King Cobra
Posts: 2668
Joined: Sat Apr 30, 2005 12:01 pm
Location: Yogyakarta, Indonesia..
Contact:

Post by victor » Wed Nov 23, 2005 12:29 pm

MrMistery wrote:so cells excrete K+ and Cl- separatly into the lumen by active transporters, and then they combine to form HCl, which is so important for the digestion process


K+ and Cl- will form KCl....where's the H+ needed to form HCl ?
Q: Why are chemists great for solving problems?
A: They have all the solutions.

User avatar
MrMistery
Inland Taipan
Inland Taipan
Posts: 6832
Joined: Thu Mar 03, 2005 10:18 pm
Location: Romania(small and unimportant country)
Contact:

Post by MrMistery » Wed Nov 23, 2005 6:39 pm

I wrote K+ instead of H+. You want the real process? Fine!
Downloading from IBO training memory:
Co2 enters the parietal cell according to concentration gradient. There, the enzyme carbonic anhidrase is present. It catalises the reaction:
CO2 + H2O--> HCO3- + H+
H+ is excreted into the lumen through a pump identical to the one plants use to create H+ gradients
Now, Cl- enters the cell through an antiport with HCO3-, so the cell solves 2 problems: gets rid of HCO3- and gets the Cl- inside the cell. Then Cl- is excreted into the lumen through an ion channel according to the Gibbs-Donnan equilibrium. This channel is only present in the part of the cell facing the lumen.

Any questions? ;)
"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

User avatar
Mjhavok
Coral
Coral
Posts: 163
Joined: Thu Nov 25, 2004 6:54 pm

Post by Mjhavok » Thu Nov 24, 2005 12:10 pm

mithrilhack wrote:I got the impression that HCl is created from proton pumps. I was doing my Russian history homework yesterday and I read about Rasputin and how he survived cyanide(incredible story, he survived like 3 assasination attempts). Anyway he had a disease that inhibits production of HCl.

http://en.wikipedia.org/wiki/Achlorhydria



That is quite interesting

User avatar
Poison
Inland Taipan
Inland Taipan
Posts: 2322
Joined: Sun Jan 02, 2005 12:44 pm
Location: Turkey

Post by Poison » Thu Nov 24, 2005 4:53 pm

MrMistery wrote:
Any questions? ;)


:shock: Nope
It matters not how strait the gate
How charged with punishment the scroll
I am the Master of my fate
I am the Captain of my soul.

User avatar
MrMistery
Inland Taipan
Inland Taipan
Posts: 6832
Joined: Thu Mar 03, 2005 10:18 pm
Location: Romania(small and unimportant country)
Contact:

Post by MrMistery » Thu Nov 24, 2005 6:32 pm

LOL... Don't be afraid to ask Ozge... :)
By the way, a cool thing to know is that specific inhbitors for the H+ pump are used in treating stomach ulcer. I don't really know what they are called, but i don't think anyone really cares so...
"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

Terry K.
Death Adder
Death Adder
Posts: 96
Joined: Mon Oct 24, 2005 1:42 pm
Location: Myerstown, PA

Post by Terry K. » Tue Nov 29, 2005 11:40 pm

Doesn't nexium have those inhibitors, or is my memory for TV fading away as I speak?
Saying that any two humans are exactly alike is like saying republicans have morals

Post Reply

Who is online

Users browsing this forum: No registered users and 3 guests