Plant Structure & Function. Main Plant Tissues Dermal Tissue - covers the outside of the plant &...
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Transcript of Plant Structure & Function. Main Plant Tissues Dermal Tissue - covers the outside of the plant &...
![Page 1: Plant Structure & Function. Main Plant Tissues Dermal Tissue - covers the outside of the plant & protects it Ground Tissue - inside the dermal tissue;](https://reader030.fdocuments.us/reader030/viewer/2022032604/56649e6b5503460f94b69990/html5/thumbnails/1.jpg)
Plant Structure & Function
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Main Plant Tissues• Dermal Tissue - covers the outside of
the plant & protects it• Ground Tissue - inside the dermal
tissue; provides support, stores materials & is the site of photosynthesis
• Vascular Tissue - transports water & nutrients throughout the plant– Xylem transports water– Phloem transports food
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Roots• Roots anchor plants & absorb mineral
nutrients from the soil
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root cap
1. Root cap covers the tip &
protects the growing part of the root
Root Parts
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Apical meristem
.
2. Apical meristem is where growth occurs.
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3. Vascular cylinder is in the center of the root & contains xylem and phloem
Vascular Cylinder
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.4. Root hairs
increase surface area to absorb water & nutrients.
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Stems• Stems support plants, transport
materials & provide storage
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• Primary Growth• Occurs in apical meristem• Lengthens roots & stems
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Secondary Growth• Occurs in lateral meristems• Adds to the width of roots and stems
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Leaves• Leaves collect sunlight for
photosynthesis• The top of a leaf contains most of the
chloroplasts & is where most photosynthesis takes place
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Leaves–Gases are exchanged through openings
called stomata, which are opened & closed by surrounding cells called guard cells
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sepal
FlowersFlowers contain sepals and petals, which are
often brightly colored to attract animal pollinators
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• A stamen is the male structure of the flower.
– anther produces pollen grains – filament supports the anther
stamen
filament anther
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pistil style
stigma
ovary
• The innermost layer of a flower is the female pistil.
– stigma is sticky tip – style is tube leading from stigma to ovary – ovary produces egg cells