Evaporation and transpiration Flashcards
1
Q
what is transpiration?
A
the loss of water vapour from the surface of plant leaves is known as transpiration.
2
Q
what is a stomata?
A
all over the leaf surface are small openings called stomata
3
Q
how is water lost?
A
water is lost through the stomata, which open to let in carbon dioxide for photosynthesis.
4
Q
what are guard cells?
A
the size of the stomata and their opening and closing is controlled by the guard cells
