root, stems, and leaves
Ground tissue is found in a plant's ____.
conduct water to the leaves
if some of the xylem of a young oak tree were destroyed, it would most likely interfere with the tree's ability to ____.
the outer covering of a plant consists of _____.
ground tissue, parenchyma cells, leaves
where do most of the photosynthetic activity in plants take place?
light if a plant has enough water
the stomata of leaces are usually open in____.
to increase the amount of waterabsorbed by roots
what is the main advantage of a plant having root hairs?
ensures that all water and dissolved substances must pass through a cell before entering the xylem of the root
In plant roots, the Casparian strip does what?
stomata close, preventing CO2 entry into the leaf
why does photosynthesis begin to decline when leaves wilt?
warm, dry day
ignoring all other factors, what kind of day would result in the fastest delivery of water and minerals to the leaves of a tree?
source to sink
what can phloem transport be derscribed as?
a water molecule could move all the way through a plant from soil to root to leaf to air and pass through a living cell only once. This living cell would be part of which structure?
help balance the photosynthesis-transpiration compromise
what do guard cells do?
hydrogen bonds form between hydrogen atoms of one water molecule and the oxygen atoms of other water molecules
why do water molecules stick to other water molecules?
mycorrhizae and rood hairs
what increases the surface area of roots
evaporation of water through stoma
what is the main force by which most of the water within xylem vessels moves towards the top of a tree?
what contains secondary cell walls, lignified cells, dead cells, provides structural support, and conducts water sap?
what conducts sugar sap?
a substancee consisting of two or more different elements combined in a fixed ratio
the smallest unit of matter that still retains the properties of a element
has a single positive electrical charge
has a single negative electrical charge
is electrically neutral