Biology - Photosynthesis and Respiration - Photosynthesis basics - Inside a Leaf: Where Photosynthesis Happens
Show a cross-section of a leaf with clickable layers. Clickable areas: Upper epidermis (transparent to let light through), Palisade mesophyll (packed with chloroplasts - main photosynthesis layer!), Spongy mesophyll (air spaces for gas exchange), Stomata (tiny pores on lower surface - CO₂ in, O₂ out