Here's a breakdown:
* Mesophyll: This is the primary tissue inside a leaf, located between the upper and lower epidermis. It's made up of two types of cells:
* Palisade mesophyll: These cells are tightly packed and column-shaped, containing numerous chloroplasts for efficient light absorption.
* Spongy mesophyll: These cells are loosely arranged with large air spaces, facilitating gas exchange (carbon dioxide and oxygen) for photosynthesis.
* Chloroplasts: These are the organelles within the mesophyll cells that contain chlorophyll, the pigment responsible for absorbing light energy for photosynthesis.
So, photosynthesis primarily occurs within the chloroplasts of the mesophyll layer, specifically in both the palisade and spongy mesophyll cells.
