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Leaf Parts
N/A
9
Science
7th Grade
12/18/2008

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Term
Cuticle
Definition
The waxy waterprof coating on the leaf that prevents waterloss and damage.
Term
Upper Epedermis/ Lower Eperdermis
Definition
Protects the leaf's inner layers of cells.Doesn't contain chloroplasts. Also Processes a waxy substance called the cuticle.
Term
Palisade Layer
Definition
The main site of photosynthesis inside the leaf.
Term
Spongy Layer
Definition
Allows gases to travel through wide spaces, also a site of phtotsynthesis.
Term
Xylem (Vascular Tissue)
Definition
Transports water from roots to around the plant.
Term
Phloem (Vascular Tissue)
Definition
Sugar (glucose) travels through the leaf through the phloem.
Term
Guard Cells
Definition
Open and close the stoma, contains chloroplasts.
Term
Stoma
Definition
Allows carbon dioxide(CO2) and water (H2O) to enter and leave the leaf.
Term
Chemical Formula for Photosynthesis
Definition
6CO2 + 6H2O --------> 6CO2H12O6 + 6O2
carbon+water=sunlight=glucose + oxygen
dioxide
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