Answer :
The scars present on the potato tubers are called lenticels.
The 'scars' present on the potato tubers are called lenticels, which enable the potato to exchange gases with the environment, playing a crucial role in the plant's respiration and water transpiration. Lenticels are small openings on the skin of potatoes that allow them to exchange gases with the environment. They appear as small dots or 'scars' and play an important role in respiration for the potato plant.
When the tuber is underground, the lenticels allow for the exchange of oxygen and carbon dioxide with the surrounding soil. Lenticels also play a significant role in water transpiration in plants. Just as we humans breathe through our noses, the potato plant breathes through these lenticels.
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