Why does potato and celery hold the plant upright?

Potatoes and celery help maintain plant structure due to their specialized tissues. Potatoes, as tubers, store energy and provide stability through their dense, sturdy structure, while celery has a rigid, fibrous stalk that contains collenchyma and sclerenchyma cells, offering support. Together, these adaptations help the plant remain upright and resist bending or breaking under various environmental conditions.