Botany - Morphology of Flowering Plants Question with Solution | TestHub
In the given diagrams, A (spine) and B (tendril) are structures which are modifications of the stem. Then, probable examples of plants in which A and B can be observed, respectively, will be:
Options:
Answer:
Solution:
Modifications of stem:
Underground stems may modify to store food.
Examples - potato, turmeric, ginger,Colocasia, zaminkand, etc.
Stem may develop into tendrils (originating from axillary buds) for support.
Examples - grapevines and gourds (cucumber, pumpkins and watermelons).
Stems may develop woody and pointed thorns for protection from the axillary buds.
Examples -Bougainvillea,Citrus.
Stems may develop chlorophyll and perform photosynthesis.
Examples - Opuntia(stem as flattened structures),Euphorbia (stem as fleshy cylindrical structures), etc.
Stems may help in spread and vegetative propagation.
