Photorespiration means synthesis of ATP from ADP by using light energy photorespiration takes place in chloroplast.
Microlecithal eggs are eggs which contain very small amount of yolk e. g., Amphioxus.
Mesolecithal eggs are eggs which contain moderate amount of yolk e.g., eggs of frog.
Centrolecithal eggs are eggs in which yolk is present in centre e.g., eggs of insect.
Telolecithal eggs are eggs in which yolk is present at one pole only e.g., frog.