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? asked in 科學化學 · 1 decade ago

有人可以幫我解釋一 下(Na+-K+)-ATPase

想請問以下是什麼意思呢?

ATP-DRIVEN

1. (Na+-K+)-ATPase of Plasma Membrane [= (Na+-K+) Pump] (Fig. 10-38)

· Pumps Na+ out of and K+ into the cell.

· Concomitant hydrolysis of intracellular ATP.

· 3 Na+(in) + 2 K+(out) + ATP + H2O ® 3 Na+(out) + 2 K+(in) + ADP + Pi

· Electrogenic antiport.

· Generates an electrochemical potential gradient.

¨ Responsible for electrical excitability of nerve cells.

Update:

我不太懂得...

3 Na+(in) + 2 K+(out) + ATP + H2O ® 3 Na+(out) + 2 K+(in) + ADP + Pi

這個地方的 ATP跟ADP与Na K的流向之間是怎麼樣的關係呢?

3 Answers

Rating
  • Anonymous
    1 decade ago
    Favorite Answer

    ATP驅動~~~

    1

    細胞膜上滴(Na+-K+)-ATP酶就是(Na+-K+) 幫浦~~~~

    打出Na+並使K+進來~~~~

    使細胞內ㄉATP水解~~~~

    公式:3 Na+(in) + 2 K+(out) + ATP + H2O ® 3 Na+(out) + 2 K+(in) + ADP + Pi

    Electrogenic antiport.

    產生電化學ㄉ電位梯度~~~~

    負責神經細胞電興奮ㄉ部分~~~~

    2007-05-27 12:32:33 補充:

    Electrogenic antiport.電所引起ㄉ逆向運輸~~~~~

    2007-05-27 12:45:06 補充:

    Electrogenic antiport.影響細胞膜電位ㄉ逆向運輸~~~

    Responsible for electrical excitability of nerve cells.負責神經細胞ㄉ電興奮性~~~~

    這樣才對~~~

    2007-05-27 14:20:05 補充:

    幫浦是在細胞膜上~~~~

    細胞內ㄉATP被幫浦水解成ADP+Pi以後回到細胞內~~~~

    同時放出ㄉ能量使細胞內滴3個Na+到細胞外和細胞外ㄉ2個K+到細胞內~~~~~

    Source(s): 以前學過~~~~~
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  • Anonymous
    6 years ago

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