Question

Write the differences between $C_3$ and $C_4$ pathway.

Answer 1

$C_3$ Pathway	$C_4$ Pathway
Ribulose bisphosphate is the primary acceptor of $C{O}_2$	Phosphoenolpyruvate is the primary acceptor of $C{O}_2$
Only one type of chloroplasts are involved	Chloroplasts of two different types are present in bundle sheath cells and mesophyll cells.
Phosphoglyceric acid, a $3C$ compound is the first stable product	Oxaloacetic acid, $4C$ compound is the first stable product
The optimum temperature required for photosynthesis is between ${20}^{o}C$ to ${25}^{o}C$	The optimum temperature required for photosynthesis is between ${25}^{o}C$ to ${35}^{o}C$
Photorespiration is not avoided in this pathway	Photorespiration is avoided in this pathway