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Spongy layer
Chromosome.
gas ion transfer or diffusion through cells.
diffusion through the stomata often located in the aerial organs of the plant aka the leaves of the plant. There is a low concentration of oxygen in the air spaces between the spongy mesophyll as oxygen is constantly used by respiring plant tissue and visa versa occurs when the plant begins to photosynthesise
The leaves of water hyacinth are long and leathery and have wax coating surrounding them. They are made up of long spongy parenchyma tissues that have several air pockets. The air pockets help the leaves to stand erect and float on the surface of water. Arsha 9th
Spongy layer
Stomata and parenchyma cells, columnar ans spongy
Stomata and parenchyma cells, columnar ans spongy
through the stomata. then it enters the spongy mesophyll.
Chromosome.
Stomata and lenticells
Upper and lower epidermis, stomata and mesophyll consisting of palisade, spongy paenchyma and vascular bundles.
You have to bleed your brakes, there is air pockets in the lines...
gas ion transfer or diffusion through cells.
Through the stomata, and dissolved at the moist cell membrane of the spongy mesophyll cell.
http://wiki.answers.com/Q/What_do_plants_use_gas_exchange_for" http://wiki.answers.com/Q/What_do_plants_use_gas_exchange_for"
they are the objects inside a cross-section of a leaf which are loosley packed cells that give the leaf a spongy appearence.