Sausage-shaped cells that control the opening and closing of the stomata by changing shape due to external factors: 10: A pore in the leaf by which water vapor and carbon dioxide enter the leaf to be used for photosynthesis: 11 (black dots) Microscopic cells that contain chlorophyll and act as the food producers by executing photosynthesis Below is a close diagram of the leaf structure: The basic structure of a leaf. All plant cells have a cell wall and a cell membrane. A leaf cell is a plant cell. In addition to their role as the digestive component and organelle-recycling facility of animal cells, lysosomes are considered to be parts of the endomembrane system. Photosynthesis occurs primarily in the mesophyll, which is the middle layer of a leaf. Notably the presence of a more rigid cell wall and the modification to photosynthesize which requires chloroplast. Types 5. By Staff Writer Last Updated Mar 31, 2020 1:06:27 AM ET. Except for the thylakoid membranes , where the clorophyll molecules reside, the rest of my colors are just there to help you see the parts, and to make pretty pictures. Epidermis – The leaf's outer layer and protective "skin" surrounding leaf tissues. Find these structures on the attached diagram of cellular leaf tissues. Importance. epidermis - the protective, outler layer of cells on the surface of a leaf. The mesophyll contains cells called chloroplasts, which convert sunlight into a stable chemical energy source the plant can utilize. Take a good look at the diagram and the various parts of the leaf … In What Part of a Leaf Does Most Photosynthesis Occur? The unique plant cell has similar parts and functions to an animal cell but a few distinct differences. Lysosomes also use their hydrolytic enzymes to destroy pathogens (disease-causing organisms) that might enter the cell. The stomata close in the night to retain gases and moisture in the leaf cells and opens during the day for gaseous exchange to continue. The whole leaf looks green to us, but most of the cells and cell material are colorless or clear. The surface of many leaves is coated with a waxy cuticle which is secreted by the epidermis. Parts 4. Functions 7. protect the leaf against h20 loss, injury + disease: Cuticle: wax, protective covering/prevents h2o loss: waxy part: Stomates: openings in the lower epidermis, allow exchange of gases between external + internal environment: Guard Cells guard cell - one of a pair of sausage-shaped cells that surround a stoma (a pore in a leaf). Plant cell parts each have their own function, from the cell wall to the chloroplast. The green color comes from the chlorphyll molecules in the chloroplasts. Learn vocabulary, terms, and more with flashcards, games, and other study tools. Characteristics of Leaf 3. Start studying Parts of leaf cell. 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