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unit 5 biology vocab

Terms in this set (28)

translocation
transport of sugar (and nutrients)
how are absorption and transpiration involved in the movement of water through the xylem of a plant?
they go away
describe how nutrients are moved through the phloem according to the pressure-flow model
they move up and down depending on how much pressure is given
explain how the phloem differs depending on the season
because depending on the season, there will either be a lot of growth and photosynthesis or not a lot at all and if there is then there is a lot of glucose that will need to be stored
stem
plant organ that supports the plant
xylem
structure that transports water and minerals throughout plant, moves materials from roots to the rest of the plant- only up, made from hollow tubes of dead cells
dermal tissue
tissue that surrounds/protects the plant
guard cell
control opening/closing of stomata, exchange oxygen and carbon dioxide
stele
composed of the xylem, phloem and the endodermis, central core of tissue in the stem/root
cuticle
outermost layer of the skin
leaf
plant organ that performs photosynthesis, green, flattened, attached to a stem, principle organ of photosynthesis
stomata
holes in the leaf used for gas exchange
cortex
name for ground tissue in the root, kind of an outer layer
meristematic tissue
tissue found in growing parts of the plant--growth region of the plant
phloem
structure that transports sugars and hormones throughout plants, moves material up and down the plant, living cells that form columns in the plant
ground tissue
tissue involved with storage and photosynthesis
vascular tissue
tissue that transports materials throughout plants, thin cells
root
plant organ that absorbs water, underground
mesophyll
name for ground tissue in the leaf, photosynthetic tissue of a leaf
endodermis
controls what ENTERS the xylem in the roots, innermost layer of the cortex
epidermis
has guard cells???
stomata
openings in cuticle for gas exchange, CO2 in and O2 out
apical meristem
tips of plants, upward growth of stems, downward growth of roots
lateral meristem
where secondary growth occurs
root hairs
thin, hairlike growth, absorbs water and minerals from the soil, many hairs= bigger opp. to bring in more water
transpiration
release of water through the stomata; transport of water
cohesion-tension theory
explains how the physical properties of water allow it to move through the xylem of plants
flow of water/nutrients from roots to xylem
soil>epidermis of root>cortex in root>endodermis of root>xylem
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