Form of water lost: Transpiration involves the loss of water in the form of water vapor, while guttation involves the loss of water in liquid form.

Here are three differences between transpiration and guttation:

1. Form of water lost: Transpiration involves the loss of water in the form of water vapor, while guttation involves the loss of water in liquid form.
2. Site of occurrence: Transpiration primarily occurs through stomata on the leaf surface, whereas guttation occurs through specialized pores called hydathodes, typically found at the leaf margins or tips.
3. Driving force: Transpiration is driven by the vapor pressure deficit between the leaf and the atmosphere, creating a transpirational pull. Guttation is driven by root pressure, which forces water out of the plant when transpiration rates are low.