Transport Systems - Plants Flashcards
Where does water enter a plant?
Roots
Name the vessel that transports water up a plant?
Xylem
In which cells does most photosynthesis take place?
Pallisade mesophyll cells
How would you know from their structure that the pallisade mesophyll cells carry out most of photosynthesis?
They contain a large number of chloroplasts
Where does gas exchange take place in a plant?
stomata
What controls the opening and closing of the stomata?
guard cells
Which gas moves into the leaf?
carbon dioxide
Which gas moves out of the leaf?
oxygen
Name the rings that strengthen the xylem vessels to cope with the water pressure.
rings of lignin
Name the vessels that transport glucose up and down the plant?
phloem
Name the process of water moving through a plant and evaporating from the stomata?
transpiration
Will increased wind speed increase or decrease the transpiration rate?
increase
Will increased humidity increase or decrease the transpiration rate?
decrease
Will increased temperature increase or decrease the transpiration rate?
increase
Will increased surface area increase or decrease the transpiration rate?
increase
What piece of equipment can be used to measure the rate of transpiration?
potometer
Name the cells that provide energy for the phloem to function.
companion cells
Name the part of the phloem that separates one phloem cell from another.
sieve plates
