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N5 MO5
Transport - Plants
20
Biology
Not Applicable
10/21/2017

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Cards

Term
roots, stems, leaves
Definition
organs in a plant
Term
upper epidermis
Definition
top layer of protective cells in a leaf
Term
palisade mesophyll
Definition
tightly packed layer of photosynthesising cells in leaf
Term
spongy mesophyll
Definition
layer of photosynthesising cells in leaf, contain air spaces
Term
vein
Definition
leaf structure composed of xylem and phloem
Term
lower epidermis
Definition
protective layer of cells on underside of leaf
Term
guard cells
Definition
pairs of cells that control the opening and closing of stomata
Term
stomata
Definition
tiny pores in leaf epidermis that allow gas exchange
Term
xylem
Definition
transport tissue for water
Term
lignin
Definition
forms rings or spirals to strengthen xylem vessels
Term
transpiration
Definition
evaporation from leaves into air through stomata
Term
transpiration stream
Definition
continuous flow of water form root to leaf in plants
Term
root hair cells
Definition
specialised cells offering a large surface area for absorption of water into roots
Term
osmosis
Definition
movement of water form soil to root hair cells and form cell to cell in plants
Term
evaporation
Definition
movement of water from leaf cells to air spaces in the leaf
Term
wind speed temperature surface area
Definition
factors that when they increase, increase the rate of transpiration
Term
humidity
Definition
factor that when it increases, decreases the rate of transpiration
Term
phloem
Definition
transport tissue for sugar
Term
sieve tubes
Definition
cells in phloem tissue that allow continuous stream of cytoplasm
Term
companion cells
Definition
cells in phloem tissue that contain a nucleus
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