Class XI Practical: Morphology - Identification of Modifications of Roots, Stems, and Leaves

Objective

To identify and understand the structural modifications of roots, stems, and leaves for various functions such as support, storage, and reproduction.

Guidelines

1. Specimen Collection: Observe and collect various plant specimens exhibiting modifications (e.g., carrot/radish for storage root, banyan for prop root, ginger/potato for modified stem, pea tendril for leaf tendril, Opuntia for stem phylloclade).
2. Identification: For each specimen, identify:
   • The specific plant part that is modified (root, stem, or leaf).
   • The type of modification (e.g., tap root for storage, rhizome, stem tendril, leaf spine).
   • The adaptive function of the modification (e.g., food storage, support, vegetative propagation, protection).
3. Drawing and Labeling: Draw neat, labeled diagrams of the observed modifications.

Expected Outcome

Ability to recognize and classify different types of root, stem, and leaf modifications and explain their ecological significance.