Question

When the bulliform cells in the leaves have absorbed water and are turgid, the leaf surface is exposed. Explain

Answer 1

Answer:

Once adequate water is available, the leaves open again. When folded, the leaves are less exposed to sunlight, so they are heated less. This movement is due to water being absorbed or lost by very large epidermal cells, called bulliform cells. The bulliform cells (arrows) are located near the midrib.