Terms in this set (47)
4 main organ systems of a plant
roots, stems, leaves and flowers
anchor plants in the ground and absorb water and dissolved nutrients from the soil
2 types of roots
the primary portion of the root grows long and thick while secondary roots remain small..... long primary root is able to reach water way under the ground....
example of a tap root
carrot, pecan trees
shallow roots that branch so that no one root grows longer than the others.....prevents soil erosion...collects water easily and quickly....
example of a fibrous root
produce leaves, branches and flowers....hold leaves up to sunlight for photosynthesis...transport substances between roots and leaves.......
xylem and phloem
transports water absorbed in the roots up to the rest of the plant
transports food made in the leaves down to the rest of the plant
"wood" is actually the xylem of the tree.....a new ring is made each year....
a thick ring means
a year with a lot of rainfall
water bonds to other water molecules
water bonds to different molecules
tendancy of water to rise in a tube
pressure created by water entering the root that can push water upward
flowering plant; largest in the plant kingdom
attract pollinators for reproduction
4 main organs of flowers
sepals, petals, stamen and pistil
protect the flower bud
colorful to attract pollinatiors
male reproductive part.....has a filament and a anther
there are _____parts of the stamen
top of the filament...forms pollen grains/sperm
female reproductive part......stigma,style and ovary
there are __________ parts of the pistil
top, where pollination occurs
stalk that connects the stigma to the ovary
thickening of the ovary wall....aids in seed dispersal
one leaf inside the seed...long and narrow leaves....flower petals are in three's....usually fibrous roots
two leaves inside the seed.....broad leaves in many sizes and shapes..flower petals are in fours or fives....usually have a tap root
flowers pollinate themselves
flowers receive pollen from another plant
store food for the plant embryo....disperse to create new plants
plants have __________ methods to disperse seeds.....
eat the fruit and poop out the seeds....stick to fur
plants growth response to an external stimulus
a plants growth response towards light
a plant's growth response towards gravity (roots)
plant parts male
plant parts female
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