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(D) Photosynthesis and respiration share several fundamental similarities:$1$. In eukaryotes,photosynthesis occurs in chloroplasts and respiration occ

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$I, II$ and $III$

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(D) Photosynthesis and respiration share several fundamental similarities:$1$. In eukaryotes,photosynthesis occurs in chloroplasts and respiration occurs in mitochondria,both of which are specialized double-membrane organelles.$2$. The synthesis of $ATP$ in both chloroplasts (photophosphorylation) and mitochondria (oxidative phosphorylation) is explained by the chemiosmotic theory,which involves the establishment of a proton gradient across a membrane.$3$. Both processes utilize an Electron Transport Chain $(ETC)$ to facilitate the movement of electrons and the generation of the proton motive force required for $ATP$ synthesis.Therefore,all three statements are correct.

Photosynthesis and respiration are similar because:
$I$. In eukaryotes,both processes occur in specialized organelles.
$II$. $ATP$ synthesis in both is explained by the chemiosmotic theory.
$III$. Both use an $ETC$ (Electron Transport Chain).
Select the correct option.

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Photosynthesis and respiration are similar because:$I$. In eukaryotes,both processes occur in specialized organelles.$II$. $ATP$ synthesis in both is explained by the chemiosmotic theory.$III$. Both use an $ETC$ (Electron Transport Chain).Select the correct option.