4. What are stomata? How do
these structures participate in
the plant transpiration?

Gap-fill exercise

Fill in all the gaps, then press "Check" to check your answers. Use the "Hint" button to get a free letter if an answer is giving you trouble. You can also click on the "[?]" button to get a clue. Note that you will lose points if you ask for hints or clues!
Stomata (singular, stoma) are
specialized passages for water
gases present in the of the
plants. Asthe needs more or less
lose water and heat stomata
respectively close or preventing or
allowing the of gases by
diffusion.