aice bio - unit 7
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28 Terms
Casparian strip
band of “waxy” material (suberin) along the endodermis; PREVENTS WATER FROM TRAVELLING VIA THE APOPLAST PATHWAY
pith
a tissue in the stems of vascular plants
epidermis
“skin” of the plant; aerial parts secrete a waxy cuticle
endodermis
inner ‘skin’ layer separating the tissue layers
cortex
tissue of cells between the epidermis and the stele/vascular bundle
stele/vascular bundle
xylem & phloem; part of the transport system of the plant
monocot or dicot? what is it?
monocot root
monocot or dicot? what is it?
dicot root
monocot stem
vascular bundles scattered in cortex
dicot stem
vascular bundle in a ring; cortex outside bundles, pith in the middle
monocot or dicot? what is it?
monocot stem
monocot or dicot? what is it?
dicot stem
monocot or dicot? what is it?
monocot stem
monocot or dicot? what is it
dicot stem
monocot flowers
multiples of 3
dicots flowers
multiples of 4 or 5
monocot leaves
parallel veins
dicots leaves
net like veins
monocot or dicot? what is it?
monocot leaves
monocot or dicot? what is it?
dicot leaves
apoplast pathway
water enters and moves through the cell wall (intercellular spaces)
symplast pathway
water enters the cytoplasm and travels via the plasmodesmata
function of xylem
transport water around the plant, therefore must have little resistance to flow and be as open as possible
what is xylem made of?
made of dead cells with hard walls for support
what is lignin?
reinforces xylem, a strong and waterproof material
where is the xylem usually?
center of vascular bundle
xylem is usually … (size)`
bigger
apoplast pathway is blocked by the __________
casparian strip
Flashcards (85)