Medicinal Plants Lecture 5 (Anatomy) PDF

Medicinal plants 2024/2025 Lecture 5 Dr. Amal F. Soliman Dr. Walaa Safwat Associate Professor of Pharmacognosy Lecturer of Pharmacognosy 1. Label the above transverse section (TS) 2. This TS is in …………………………….. 3....

Medicinal plants 2024/2025 Lecture 5 Dr. Amal F. Soliman Dr. Walaa Safwat Associate Professor of Pharmacognosy Lecturer of Pharmacognosy 1. Label the above transverse section (TS) 2. This TS is in …………………………….. 3. The casparian strips in the endodermis is on ……………………..walls. 4. The type of vascular bundles is ……………………………….. Anatomy of primary plant organs Leaves ▪ The plant main photosynthetic system. Stems ▪ A support system for the plant body. ▪ A transport system that carries nutrients. ▪ A defense system that protects the plant against predators and diseases. Roots ▪ Absorb water and dissolved nutrients. ▪ Anchor plants in the ground. ▪ Protect the plant from harmful soil bacteria and fungi.  Dicot stem Monocot stem ▪ V.B Open ▪ V.B Closed ▪ V.B. arranged in a single ring around ▪ V.B. large number and scattered a central region called pith. irregularly through the ground ▪ Cortex, Pith, Pericycle, Endodermis tissue. are well-marked. ▪ Cortex, Pith, Pericycle, Endodermis ▪ Hypodermis almost collenchyma. are indistinguishable. ▪ Hypodermis almost sclerenchyma. Anatomy of the leaves Comparison between Dicot leaf and monocot leaf differentiated undifferentiated Dicot leaf Monocot leaf Monocot Dicot  A B TS in …………………. TS in …………………. D TS in …………………. C TS in ………………….