Station 3 - The Tissues of a Dicot Root Observe the section (XS) of a dicotyledon root from the buttercup Root) Ranunculus. (Ranunculus Be able to recognize the difference between a monocot and a dicot root. You will be held responsible for the following tissues: Epidermis, stele (xylem, phloem), pericycle, cortex, endodermis, and passage cells. You also need to know their function. Epidermis Xylem Phloem Pericycle Cortex Endodermis Passage cells Fill out the following table. TISSUE LOCATION MERISTEM FUNCTION ORIGIN Epidermis Single layer of cells around the outside of root Stele Central cylinder of tissue Xylem: made up of primary xylem, Phloem: phloem, pith, and pericycle Pericycle: Cortex Parenchyma found Cortex: between the stele and the Endodermis: epidermis with passage cells Passage cells: Station 4 Carrot – Look at the longitudinal and sections of a carrot (Daucus) root and identify the following structures: cortex, stele, pericycle and lateral (secondary) roots. Cortex Lateral Roots Pericycle
Station 3 - The Tissues of a Dicot Root Observe the section (XS) of a dicotyledon root from the buttercup Ranunculus. (Ranunculus Root) Be able to recognize the difference between a monocot and a dicot root. You will be held responsible for the following tissues: Epidermis, stele (xylem, phloem), pericycle, cortex, endodermis, and passage cells. You also need to know their function. Epidermis Xylem Phloem Pericycle Cortex Endodermis Passage cells Fill out the following table. TISSUE LOCATION MERISTEM ORIGIN FUNCTION Epidermis Single layer of cells around the outside of root Stele Central cylinder of tissue made up of primary xylem, phloem, pith, and pericycle Xylem: Phloem: Pericycle: Cortex Parenchyma found between the stele and the epidermis with passage cells Cortex: Endodermis: Passage cells: Station 4 – Carrot Look at the longitudinal and sections of a carrot (Daucus) root and identify the following structures: cortex, stele, pericycle and lateral (secondary) roots. Cortex Lateral Roots Pericycle
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