transpiration

How’s water reduces from the leaf ?

Each adaptation helps to reduce water loss from the leaf by evaporation and transpiration

what limits water loss ?

xerophyte

how does water travel ?

Via water potential gradient.

how does the water potential gradient changes ?

water vapour molecules diffuses out of the air spaces in the leaf and into the surroundings air down a water vapour potential gradient.

Does osmosis occurs in this situation ?

NO because it doesn't occur through a partically permeable membrane.

what happens after water is lost from stomata ?

Water evaporating from the mesophyll cell wall / cytoplasm replaces the water vapour lost in the air space.

what changes about the water potential when these cells lose water ?

The water potential is lowered so water enters, via osmosis from surroundings cels.

Water travel down into the cells from the xylem.

how does water travel through plant ?

In xylem : Dead , hollow, waterproof cells that form a tube - like structure.

No end walls

Cohesion tension theory

water molecules adhere to xylem cells + cohere together.

Pulled up via , transpiration stream.