Question

select the layer(s) of a leaf that undergo photosynthesis. more than one answer may be correct (choose all).
waxy cuticle
upper epidermis
palisade mesophyll
spongy mesophyll
lower epidermis

Explanation:

Photosynthesis occurs in cells with chloroplasts. The palisade mesophyll has closely - packed cells rich in chloroplasts for efficient light absorption. The spongy mesophyll also has chloroplasts and allows gas exchange which is necessary for photosynthesis. The waxy cuticle is a protective layer without chloroplasts. The upper and lower epidermis are protective layers (in most plants, they lack chloroplasts for photosynthesis, though in some plants, guard cells in the epidermis have chloroplasts but the main photosynthetic layers are mesophyll).

Answer:

palisade mesophyll, spongy mesophyll