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biology 12/16

test notecards for photosynthesis test

QuestionAnswer
Leaf A mass of ground tissue and vascular tissue covered by epidermis.
Cuticle Coats the upper and lower epidermis.
Xylem and Phloem Found in the veins of the leaf.
Veins Extensions of vascular bundles that run from the tips of roots to the edges of leaves.
Mesophyll Makes up the ground tissue, Cells are packed with chloroplasts.
Chloroplasts The site of photosynthesis.
Palisade Layer Lies beneath the upper epidermis.
Spongy Layer Loosely packed, spherical cells, in between the palisade layer and the lower epidermis, also has many air spaces.
Stomata Tiny holes in the epidermis that connect to the air spaces outside the leaf.
Opened Stomata Transpiration occurs.
Transpiration Water vapor diffuses out of the leaf.
Opening and Closing of Stomata Water pressure changes.
Guard Cells take in water The guard cells bend away from eachother.
Guard Cells loose water The guard cells shorten and move closer together.
Chlorophyll A & B Primary pigments, absord mostly blue and red, reflects green and yellow.
Carotenoids Absorb all different wavelengths and more, allowing them to absorb more light than Chlorophyll A & B.
Created by: morganmcmullen
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