Login

Join for Free!
114835 members


How is mitochondria involved in regulating calcium???

Discussion of all aspects of cellular structure, physiology and communication.

Moderator: BioTeam

How is mitochondria involved in regulating calcium???

Postby sundew773 » Sun Jun 26, 2005 12:00 am

I can't find how mitochondria is involved in regulating calcium anywhere :(

So far we've discussed that mitochondria is involved with apoptosis, the proton motive force, and ATP synthase...does calcium fit in somewhere?

Much thanks! :D
sundew773
Garter
Garter
 
Posts: 15
Joined: Thu Jun 23, 2005 9:20 pm

Postby MrMistery » Sun Jun 26, 2005 8:35 pm

Calcium is poison to the cell. Ca2+ ion has the highest gradient in the human body: it is 40000 times more outside the cell than inside. In extreme conditions, when there is too much Ca2+ in the cell, the mithocondria can accept Ca2+ ions. There are 4 transporters located on the membrane of the mithocondria for this purpose.
Nice question, it put my memory to work... :D :D
User avatar
MrMistery
Inland Taipan
Inland Taipan
 
Posts: 6832
Joined: Thu Mar 03, 2005 10:18 pm
Location: Romania(small and unimportant country)

Postby sundew773 » Sun Jun 26, 2005 9:23 pm

MrMistery wrote:Calcium is poison to the cell. Ca2+ ion has the highest gradient in the human body: it is 40000 times more outside the cell than inside. In extreme conditions, when there is too much Ca2+ in the cell, the mithocondria can accept Ca2+ ions. There are 4 transporters located on the membrane of the mithocondria for this purpose.
Nice question, it put my memory to work... :D :D


Thanks so much, that makes perfect sense! :)
sundew773
Garter
Garter
 
Posts: 15
Joined: Thu Jun 23, 2005 9:20 pm


Postby MrMistery » Sun Jun 26, 2005 9:28 pm

Everything makes sense in biology, that's why it is so fun 8)
User avatar
MrMistery
Inland Taipan
Inland Taipan
 
Posts: 6832
Joined: Thu Mar 03, 2005 10:18 pm
Location: Romania(small and unimportant country)

Postby LrdGeno » Mon Jun 27, 2005 3:35 pm

Isn't there something called a calcium - potassium pump? I think that's what it's called anyhow, and if that is the name I have no idea where it is in the body
A hangover IS the Wrath of Grapes!
User avatar
LrdGeno
Death Adder
Death Adder
 
Posts: 73
Joined: Thu Jun 09, 2005 10:49 pm
Location: New Mexico, USA

Postby mith » Mon Jun 27, 2005 4:05 pm

There's a sodium potassium pump
Living one day at a time;
Enjoying one moment at a time;
Accepting hardships as the pathway to peace;
~Niebuhr
User avatar
mith
Inland Taipan
Inland Taipan
 
Posts: 5345
Joined: Thu Jan 20, 2005 8:14 pm
Location: Nashville, TN

Postby Poison » Mon Jun 27, 2005 4:33 pm

Nerve cells use Na-K pump.
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
Poison
Inland Taipan
Inland Taipan
 
Posts: 2322
Joined: Sun Jan 02, 2005 12:44 pm
Location: Turkey

Postby MrMistery » Mon Jun 27, 2005 8:10 pm

Actually all cells have NA/K pumps. It's only that nerve cells use it all the time, they have much more of them. Actually 70% of the energy used by the neuron is used by the Na/K pump.
And no, there is no such thing as a calcium potasium pump.
User avatar
MrMistery
Inland Taipan
Inland Taipan
 
Posts: 6832
Joined: Thu Mar 03, 2005 10:18 pm
Location: Romania(small and unimportant country)


Return to Cell Biology

Who is online

Users browsing this forum: No registered users and 2 guests

cron