AP BIOLOGY

Detailed explanation-1: -Additional information: the secretion during guttation is commonly called ‘xylem sap’. Guttation is not dew, as dew is simply water droplets condensed on the leaves but guttation is the secretion which is given out by leaf margins and tips.

Detailed explanation-2: -Guttation is not dew. Dew is atmospheric moisture condensing on colder surfaces, and is pure water. Guttation is moisture secreted from within the plant itself, and contains xylem sap.

Detailed explanation-3: -The dew drops that we see on the leaves in the early morning is due to guttation. Guttation is loss of water in liquid form from the plants. It occurs when there is active absorption of water by roots and transpiration is low i.e. moist and humid conditions.

Detailed explanation-4: -Solution. Guttation is defined as the loss of water in the form of water droplets from the leaves of intact plants. It is also called exudation.

Detailed explanation-5: -Water deposited on grass and leaves reduces transpiration (the release of water into the atmosphere through pores in the plant’s leaves). Dew forms a protective barrier on the leaf; transpiration will not occur until the dew evaporates.