4. Spongy mesophyll – under the palisade layer
{"Image DocumentName": "4. Spongy mesophyll \u2013 under the palisade layer", "Image ImageDescription": "Loosely packed cells. Have numerous air spaces which hold the raw materials used and products of photosynthesis. 5. Stomata \u2013 usually on the lower epidermis. Tiny holes for gas exchange; They can open & close. 6. Guard cells \u2013 control the opening & closing of the stomata. Found on either side of the stomata.", "Image XResolution": "37", "Image YResolution": "37", "Image ResolutionUnit": "Pixels/Centimeter", "Image Software": "SlidePlayer", "Image YCbCrPositioning": "Centered"}