Structural-Organization-Morphology-Of-Plants-1

1. Root:

  • Roots are typically underground structures that anchor the plant and absorb water and minerals from the soil.

  • They may have various forms, including taproots (main root with lateral branches) or fibrous roots (thin, spreading roots).

  • Root hairs are tiny structures on the root’s surface that increase its surface area for absorption.

2. Stem:

  • Stems are typically above-ground structures that support leaves, flowers, and fruits.

  • They may be herbaceous (soft and green) or woody (hard and brown) depending on the plant type.

  • Stems often have nodes (points where leaves or branches attach) and internodes (the segments between nodes).

3. Leaf:

  • Leaves are the primary sites for photosynthesis, where plants capture light energy and convert it into energy-rich sugars.

  • Leaf morphology varies among species but often includes a flat, thin blade and a petiole that attaches it to the stem.

  • The upper surface of leaves is usually more exposed to light, while the lower surface may have stomata for gas exchange.

4. Phyllotaxy:

  • Phyllotaxy refers to the arrangement of leaves on a stem or branch.

  • Common phyllotaxy patterns include alternate (one leaf per node), opposite (two leaves per node, opposite each other), and whorled (three or more leaves per node in a circular arrangement).

  • Phyllotaxy patterns can help in species identification.

5. Inflorescence:

  • Inflorescence refers to the arrangement of flowers on a plant.

  • Different plant species have various types of inflorescences, such as racemes (unbranched, elongated clusters), panicles (branched clusters), umbels (umbrella-shaped clusters), and spikes (unbranched, closely spaced flowers).

  • Inflorescence types are important in botany and can aid in classifying plants.



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