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Leaf Structure and Function – worksheet Name: _____ Part I: Match each term in the left column with the correct definition in the right column. Term chlorophyll phloem Definition the vascular (conducting) tissue in a plant that transports organic materials such as glucose. openings in the lower surface of leaf that allows gases (O2 and CO2 ...
1 The cells in the upper epidermis contain no chloroplasts and are transparent to allow light to penetrate into the leaf. 2 The palisade mesophyll cells are packed tightly together near the top of the leaf to collect as
Directly underneath the cuticle is a layer of cells called the epidermis (B). The vascular tissue, xylem and phloem are found within the veins of the leaf. Veins are actually extensions that run from to tips of the roots all the way up to the edges of the leaves.
Epidermis: These are the outermost layer of cells that cover the upper and lower surfaces of the leaf. They form a protective barrier and are typically transparent to allow light penetration. The epidermal cells on the upper surface often have a waxy cuticle to prevent excessive water loss.
18 Σεπ 2024 · Stomata in the leaf allow carbon dioxide to diffuse into the leaf and oxygen to diffuse out; The epidermis is thin and transparent, allowing more light to reach the palisade cells; The thin cuticle made of wax protects the leaf without blocking sunlight
24 Σεπ 2024 · Learn about leaf structure for your IGCSE Biology exam. This revision note includes labelled diagrams of leaf structure and tables summarising cell functions.
24 Ιουν 2017 · Air Spaces allow Carbon Dioxide to Diffuse through the Leaf, Increasing the Surface Area
