A cyclic process is occurring in C3 plant, which is light dependent, and needs $O_{2}$ . This process doesn’t produce energy rather it consumes energy. a. Can you name the given process? b. Is it essential for survival? c. What are the end products of this process? d. Where does it occur?

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Solution

Photorespiration :

Photorespiration is the process in which plants utilize $O_{2}$ and release fixed $C O_{2}$ . It occurs when the $C O_{2}$ concentration in the atmosphere decreases and the temperature is high. It is an energy-consuming process.

Final answer :

Photorespiration

Photorespiration is a wasteful process:

Photorespiration is a wasteful process because it is consuming energy and releases fixed carbon dioxide. It occurs due to the oxygenase activity of RUBISCO. It is not essential for survival.

Final answer:

No, It is not essential for survival.

End products of photorespiration:

The end product of this process is phosphoglycolate (2-carbon), phosphoglycerate (3-carbon) and $C O_{2}$ .

$RuBP + O_{2} + A T P + N A D P H \to phosphoglycolate + phosphoglycerate + C O_{2} + A D P + P + 12 N A D P$

The reaction is catalysed by RuBisCO, where it acts as an oxygenase.

Final answer

Phosphoglycolate ( $2$ -carbon), phosphoglycerate ( $3$ -carbon) and $C O_{2}$

Organelles involved in photorespiration:

Photorespiration occurs in three cell organelles namely, chloroplast, mitochondria, and peroxisomes.

Final answer:

Chloroplast, Mitochondria, and Peroxisome.

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A cyclic process is occurring in C3 plant, which is light dependent, and needs O2 . This process doesn’t produce energy rather it consumes energy. a. Can you name the given process? b. Is it essential for survival? c. What are the end products of this process? d. Where does it occur?

A cyclic process is occurring in C3 plant, which is light dependent, and needs $O_{2}$ . This process doesn’t produce energy rather it consumes energy. a. Can you name the given process? b. Is it essential for survival? c. What are the end products of this process? d. Where does it occur?