Tag: plastids

During photosynthetic electron transport, protons (H$^+$) accumulate in the thylakoid space. These protons are released into thylakoid space after each split of water molecule during photooxidation and after each electron transport between PQH$ _2$ to cytochrome-f. Increase in the number of protons in the thylakoid space results in an increase in a proton gradient.

A) The green pigment chlorophyll is located within the thylakoid membrane.

Quantasomes are particles found in the thylakoid membrane of chloroplasts in which photosynthesis takes place. They are embedded in a paracrystalline array on the surface of thylakoid discs in chloroplasts.

Quantasomes are composed of lipids and proteins that include various photosynthetic pigments and redox carriers. These are the particles found in the thylakoid membrane of chloroplasts in which photosynthesis takes place. They are embedded in a paracrystalline array on the surface of thylakoid discs in chloroplasts.

Abscisic acid (ABA) is a plant hormone synthesized primarily in the chloroplasts via the carotenoid pathway.

Plastocyanin is a copper-containing protein that acts as an electron carrier in the photosynthetic electron transport chain within the chloroplast thylakoid lumen.

Cytomixis is the process where chromatin or nuclear material passes from one plant cell to an adjacent cell through plasmodesmata.

During photosynthesis in the light, protons are actively pumped from the stroma into the thylakoid lumen by the electron transport chain. This accumulation of protons in the lumen causes the pH there to drop to its lowest levels.