PLANT TRANSPORT OCR BIOLOGY A LEVEL A level ocr biology plant transport 3.1.3 0.0 / 5 ? BiologyCellular processesEcology, ecosystems and environmental biologyHuman, animal and plant behaviourHuman, animal and plant physiologyAnimal and plant transportASOCR Created by: Davina1stCreated on: 26-03-21 11:45 What are the main reasons why a multicellular plant needs a specialised transport system? High metabolic demand, size, SA:V ratio is different in plants (stem is thick but leaves are small and flat). 1 of 6 What is a dicotyledonous plant? (Dicots) They make seeds that contain two cotyledons (organs that act as food stores for developing embryo of plant) 2 of 6 What is a vascular bundle? Made up of xylem and phloem, the transport system of vessels in a plant. 3 of 6 Where are the vascular bundles found in a stem and why? Around the edge to give it strength and support 4 of 6 Where are the vascular bundles found in a root and why? In the middle, to help the plant withstand the tugging strains that result as the stems and leaves are blown in the wind. 5 of 6 Where is the vascular bundles found in a leaf and why? The midrib of the leaf is the main vessel carrying vascular tissue. It helps to support the structure of the tissue, 6 of 6
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