mass transport in plants

how do plants enable efficient gas exchange?

stomata- maintain conc gradient

thin leaves - short distance

air spaces in mesophyll cells- allow rapid movement of gas

carbon dioxide used by cells immediately- maintain conc gradient

how can a student accuraterly invesitgate the surface area of the upper sides of leaves?

Place leaf on graph/ grid paper

Trace the shape

Count sqaures in outlie

z

z