Question

Photorespiration takes place only in [MHCET 2003]
A) Lysosomes of plant cell
B) Green parts of the plant
C) Mitochondria of plant cell
D) None of these

Answer 1

Photorespiration takes place only in Green parts of the plant

Answer 2

‘Photorespiration’ takes place only in ‘Green parts of the plant’.

Option: B

Explanation:

• Photorespiration occurs in the chloroplasts of plants. Chloroplasts contain the ‘pigment chlorophyll’ and impart the green colour to plants. Hence, photorespiration occurs in the green parts of plants.  

• Photorespiration occurs in the ‘presence of light’ and forms glycolate by utilizing oxygen and losing carbon dioxide.  

• This fixed carbon in the form of glycolate is salvaged through peroxisomes, mitochondria and returned back into the chloroplasts.  

• Photorespiration increases with increase in oxygen or decrease in ‘carbon dioxide levels’.

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