Question

The process responsible for facilitating loss of water in liquid form from the tip of grass blades at night and in early morning is

• A. Imbibition
• B. Plasmolysis
• C. Transpiration
• D. Root Pressure

Answer 1

The correct option is D

Root Pressure

The correct option is D.

Explanation of the correct option:

1. In the stem, water may be forced to modest heights by root pressure (positive pressure).
2. It is also visible at night and in the morning when evaporation is minimal and extra water gathers in the form of droplets around certain vein openings close to the tip of various herbaceous portions of leaves.

Explanation of the incorrect options:

Option A:

1. Imbibition is a kind of diffusion in which water is absorbed by a solid object or colloid, causing the substance's volume to grow dramatically.
2. Water is tightly adsorbed on the surface of the chemical during this process, but no solution is formed.

Option B:

1. Plasmolysis is a frequent reaction of plant cells exposed to hyperosmotic stress.
2. The violent detachment of the live protoplast from the cell divider is caused by a turgor deficit.
3. The vacuole plays a crucial role in the plasmolytic cycle.
4. Plasmolysis is a hallmark for living plant cells that is reversible (deplasmolysis).

Option C:

1. Plants release the water they contain in the form of moisture or water vapour through the process of transpiration.
2. Some of the water in the soil is consumed by the roots, while the rest evaporates into the atmosphere.
3. Plants' stems, microscopic pores on leaves, and flowers evaporate water into the air

Final answer: The process responsible for facilitating the loss of water in liquid form from the tip of grass blades at night and in the early morning is root Pressure.