Multiple choice general knowledge science & technology

During respiration the oxidative phosphorylation takes place in-

  1. Matrix of chloroplast

  2. Matrix of mitochondrion

  3. Inner membrane of mito-

  4. Grana of chloroplast
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

Oxidative phosphorylation occurs in the inner mitochondrial membrane where the electron transport chain is located. The proton gradient across this membrane drives ATP synthesis via ATP synthase. The matrix contains TCA cycle enzymes, and chloroplast structures are involved in photosynthesis, not respiration. Note: 'mito-' in option C is an abbreviation for mitochondrion.

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