Question

Which layer carries out photosynthesis in a leaf?

1) spongy
2) epidermis
3) cuticle
4) palisade

Answer 1

4) palisade

Basically palisade mesophylls are the ones who contain chloroplasts and absorb light and make food for plant via photosynthesis.

but also spongy mesophylls absorb light and can carry out photosynthesis