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Unit 7 Review [Plants]
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Biology
9th
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47 Terms
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1
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Gymnosperms
* Plants that produce seeds
* Male and Female cone for reproduction
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Angiosperms
* Flowering Plants
* Flowers contains male and female parts for repoduction
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Roots
Absorb water and nutrients from soil
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Root hairs
Found on outside of roots to increase surface area to absorb water and nutrients
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Dermal Tissue
* Surface tissue known as epidermis
* To prevent waterloss, nvasion of pests, and for protection
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Stems
Transport water & nutrients throughout the plant
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Leaves
Captures light for photosynthesis through photoreceptor cells
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vascular Tissue
Transport tissue for food and water
* Evolutionary function: To grow tall and wide
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Roots: Meristematic \n Tissue
Meristem found at the ends of the root
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Roots: Ground Tissue
Root cap: protects \n meristem
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Xylem
transports water by transpiration
* evaporation through plant using cohesion & adhesion
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Phloem
Transports food
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Stems: Meristematic Tissues
* Meristem found at the top of stems
* Vascular cambium: growth between xylem & phloem that \n increases thickness
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Stems: Ground Tissue
Shoot support in areas of active & inactive growth
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Stems: Vascular Tissues
Xylem & phloem
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Leaves: Function
Function: capture light for photosynthesis
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Leaves: Dermal Tissue (Cuticle)
Fatty waxy coating on surface for protection & to prevent water loss \n
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Leaves: Dermal Tissue (Stomata)
Opening on surface & underside of leaf where gas exchange (CO2 & O2) occurs, and water exits
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Leaves: Dermal Tissue (Guard cells)
Control opening and closing of the stomata
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Leaves during the night
Closed
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Leaves during the day
Open
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Leaves when it rains
Open
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Leaves when its Dry
Closed
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Leaves: Ground Tissue (Mesophyll layer)
Mesophyll layer where photosynthesis & gas exchange takes place
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Leaves: Vascular Tissue
Xylem & phloem \n found in spongy \n layer
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Anther
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Filament
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Ovary
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Petal
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Peduncle
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Sepal
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Stigma
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Style
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Flowers: Non-reproductive structures (petals)
Attract pollinators for fertilization
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Flowers: Non-reproductive structures (Sepal)
Little leaves that protect ovary
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Stamen
Male reproductive organs
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Anther
Contains pollen
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Filament
Holds the anther
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Pollen
Contains sperm
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Ovary
Protects ovules; develops into fruit \n after fertilization
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Ovule
Contains eggs that develop into seed
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Pistil (carpel)
Female reproductive organs
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Style
Tube pollen travels to reach ovary
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Stigma
Sticky structure that catches pollen
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Seeds
Embryo, endosperm (food), & seed coat
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Monocot
One cotyledon & parallel veins
* Corn kernel
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Dicot
2 cotyledons & network of veins
* Bean