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Why does the inside of the thylakoid membrane become positively charged during light-dependent reactions?
Wiki User
∙ 13y ago
During the light-dependent reactions, ATP is produced by the Photosystem II electron transport chain. According to the chemiosmosis theory, as the electrons are transported down the electron transport chain, some of the energy released is used to pump protons across the thylakoid membrane from the stroma of the chloroplast to the thylakoid interior space. this produces a proton concentration gradient or proton motive force. Since protons (hydrogen ions) are positively charged, this will lead to the accumulation of a positive charge in the interior of the membranes. As the accumulating protons in the thylakoid interior space pass back across the thylakoid membrane to the stroma through ATP synthetase complexes, this proton motive force is used to generate ATP from ADP and Pi For an excellent account see: http://student.ccbcmd.edu/biotutorials/photosyn/ldr.html
Wiki User
∙ 16y ago
Wiki User
∙ 14y agoIt becomes positive because ATP synthase allows H+ ions to pass through the membrane.
Wiki User
∙ 13y agoH posotive biulds up in the space as water is split
Wiki User
∙ 12y agob. ATP synthase allows H+ ions to pass through the membrane.
Wiki User
∙ 13y agoH+ ions are released as water splits
Wiki User
∙ 13y agoh+ ions are released as water splits
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The enzymes for the light dependent reactions are found in the thylakoid membrane while the Calvin cycle happens in the what?
thylakoid membrane and stroma :)
What are locations of the light reactions?
On the thylakoid membrane :)
Where is the site of the photosystems in the light-dependent reactions of photosynthesis?
they're located inside the plants thylakoids.
Where does the light reaction happens?
Light reactions occur in the cells chloroplast
Where do light-independent reactions take place?
In the thylakoid membrane in chloroplasts.
The enzymes for the light dependent reactions are found in the thylakoid membrane while the Calvin cycle happens in the what?
thylakoid membrane and stroma :)
Place where light reactions occur?
thylakoid membrane
What are locations of the light reactions?
On the thylakoid membrane :)
What membrane do light dependent reactions take place?
Thylakoid membrane on the chloroplast.
Where is the site of the photosystems in the light-dependent reactions of photosynthesis?
they're located inside the plants thylakoids.
Where does the light reaction happens?
Light reactions occur in the cells chloroplast
In which structure of chloroplast do the light-dependent reactions occur?
The light reactions occur in the thylakoid space, which can also be called the granum.
Where is the location of the dark reactions in photosynthesis?
The dark reactions occur in the stroma of the chloroplasts. The stroma is the space between the thylakoid membranes and the chloroplast inner membrane.
Where do light-independent reactions take place?
In the thylakoid membrane in chloroplasts.
Where are enzymes associated with light dependent reactions of photosynthesis located?
in the thylakoid membrane.
Where do light dependent reactions occur in the chloroplast?
In the inner thylakoid membrane of the chloroplasts.
Where in the chloroplast do light reactions occur?
The Light Dependant Reactions of photosynthesis occur on the thylakoid membranes of the chloroplast.
