Question

Out of 95% of sulfur water lost by plants in the atmosphere through aerial parts, the water lost in liquid form constituents is:

• A. Guttation
• B. Transpiration
• C. Evaporation
• D. Condensation

Hint:

Guttation occurs under specific conditions, typically when the plant’s transpiration is minimal, and excess moisture is exuded through hydathodes.

Answer 1

The Correct Option is A

Step 1: Guttation is the process by which plants excrete excess water in liquid form through specialized pores called hydathodes, primarily found on the edges of leaves. This occurs when soil moisture is high and transpiration is low, typically at night. The exuded water contains dissolved substances like sugars, amino acids, and minerals.

Step 2: The process of transpiration, on the other hand, is the evaporation of water from plant surfaces, mainly through stomata. This is the main method of water loss in plants. Guttation is different in that it involves the release of liquid water, whereas transpiration involves water vapor.

Step 3: The other options are not correct:
- (B) Transpiration: Involves water vapor, not liquid form.
- (C) Evaporation: Refers to the change of water from liquid to vapor, which is not the case here.
- (D) Condensation: Refers to the process where water vapor turns into liquid, which is not relevant to this question.

Conclusion: Guttation is the correct process for the excretion of liquid water in plants.