Question

Assertion : The loss of water in its liquid phase from the leaves is called guttation.
Reason : Guttation takes place at night only.

• A. If both assertion and reason are true and reason is the correct explanation of assertion
• B. If both assertion and reason are true but reason is not the correct explanation of assertion
• C. If assertion is true but reason is false
• D. If both assertion and reason are false

Answer 1

Answer: (C)

Guttation takes place through special structures called hydathodes, that are usually found on the margins and tips of the leaves. Common examples are found in garden nasturtium, oat and other cereals, balsam, tomato, cucurbits. Guttation usually occurs during periods of active growth when conditions favour more water absorption and less transpiration. Guttation takes place either at night or early in the morning.