Biology : PU-CET (U.G) 2016 Panjab University Entrance Exam With Answers

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54.

The Bulliform Cells Of Monocot Leaves Show :

A: Tropic Movement
B: Autonomic Movement
C: Nastic Movement
D: Turgor Movement

The answer is: D

Explanation

The bulliform cells of monocot leaves show turgor movement.

Bulliform cells are specialized cells found in the leaves of monocots, such as grasses, and they are responsible for the rolling and unrolling of the leaves in response to changes in turgor pressure. Turgor movement occurs when the cells absorb or release water, causing changes in their volume and shape. In monocot leaves, the bulliform cells are located on the upper surface of the leaves and are responsible for the folding and unfolding of the leaves in response to changes in water availability. This movement helps to regulate the amount of water lost from the leaf surface and helps the plant to conserve water during periods of drought.