Question

in photorespiration decarboxylation step occur in which cell organelle
1) chloroplast
2) mitochondria
3) nucleus
4) peroxisome​

Answer 1

In photorespiration, the decarboxylation step occurs in the mitochondria. (Option 2)

• Decarboxylation is the process where a carboxyl group is removed.
• Carbon dioxide gets liberated as a by-product during this process.
• This occurs due to photorespiration taking place in the mitochondria.
• As carbon dioxide within the leaves reduces, photorespiration takes place.
• High temperatures and high light intensities trigger this process.
• Plants start accepting oxygen as a result of which carbon dioxide begins to leave as a by-product.