Gaseous Exchange in Plants — NEET Biology
📚 Practice ConceptPlants unlike animals have no special systems for breathing or gaseous exchange. Stomata and lenticels allow gaseous exchange by diffusion. Almost all living cells in a plant have their surfaces exposed to air.
Match the following columns that describe plant structures or conditions related to gaseous exchange: Column I (Structure / Condition) A. Stomata B. Lenticels C. Loose packing of parenchyma cells D. Living cells in thick woody stems Column II (Location / Feature) I. Found on bark of woody stems II. Present on leaf epidermis III. Creates an interconnected network of air spaces IV. Organized in thin layers inside and beneath the bark Column III (Associated Role / Characteristic) P. Facilitate gas diffusion in non-leafy parts Q. Enable direct contact of most living cells with air R. Allow gas exchange primarily in leaves S. Exhibit low metabolic demands compared to animals
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