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Plant Biology
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Ecosystems & Biodiversity
biology
plants
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19 Terms
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1
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Organic matter
Organic matter, produced in the leaves, must be transported to the consuming sources- via the phloem.
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Salts
Salts and water are absorbed by the roots and transported into the plant by the xylem.
3
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Pollination
Pollination: transport of the pollen grain from one plant to the pistil of another.
4
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fertilization
After ________, the ovary becomes a fruit, and the ovules become seeds.
5
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Gametes
Gametes depend on water for transport.
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Double fertilization occurs
________ (forming the embryo and the endosperm)
7
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Spores
Spores are carried by the wind and originate from the prothallium (gametophyte), Gametes depend on water to be transported.
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availability
The stomas open when there is light and water ________.
9
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sporophyte
The plant is the ________, and the strobiles produce microspores (forms the pollen grain) or megaspores (forms the embryo sac)
10
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stamens
In the ________, there is the pollen sac, where the spores are formed by meiosis, generating pollen grains.
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phloem
The phloem is an important plant conducting tissue.
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endosperm
The endosperm (3n) is the nutritional reserve of the embryo.
13
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flow
The removal of a ring- in the bark of the tree- interrupts the ________ of the phloem and causes the death of the cells due to lack of nutrients.
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Root pressure
Root pressure pushes the sap upward.
15
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Transpiration
Transpiration occurs in any part of the plant that is above ground.
16
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spores
They are the first spermatophytes- with leaves specialized in producing ________ (sporophylls, gathered in strobiles)
17
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fertilization
After ________, the ovule becomes a seed (embryo + nutritive tissue + tegument)
18
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Pollination
transport of the pollen grain from one plant to the pistil of another
19
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The removal of a ring -in the bark of the tree
interrupts the flow of the phloem and causes the death of the cells due to lack of nutrients