Exemplar Problems

Question:

A rubber band stretches and reverts to its original position. Bubble gum stretches, but it would not return to its original position. Is there any difference between the two processes? Discuss it with respect to plant growth (Hint: Elasticity (reversible) Plasticity (irreversible)

Answer:

A rubber band exhibits elasticity, allowing it to stretch and then return to its initial state. Conversely, bubble gum displays plasticity and would remain altered after stretching, displaying an irreversible change. In response to environmental life stages, plants can follow diverse pathways, exemplified by occurrences like heterophylly in cotton