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Photon
A particle of light
Absorption Spectrum
The different colors, or wavelengths, of light absorbed by each pigment in photosynthesis
Thylakoids
The photosynthetic membranes in the chloroplast which are arranged in the shape of flattened
Grana
Stacks of hyaloids in plant chloroplasts
Stroma
The regions between the grana
Carbon Fixation
The process in which carbon dioxide is incorporated into organic compounds by the processes of photosynthesis and chemosynthesis
Chemosynthesis
A form of autotrophic nutrition in which energy for synthesizing organic compounds is obtained from inorganic compounds rather than from light
Meristems
A region or tissue composed of cells that undergo or are capable of repeated cell division
Cambium
A meristematic tissue found in woody plants
Xylem
The tissue that conducts water and minerals from the roots upward through the plant and helps to support the plant
Phloem
The tissue that conducts food and other dissolved materials throughout the body of a vascular plant
Root Hairs
Hair like extensions of root epidermal cells that increase the surface area for absorption
Stomates
The openings in the epidermis of leaves that allow the exchange of respiratory gases between the internal tissues of the leaf and the atmosphere
Pith
The center of a herbaceous dicot system, made up of parenchyma cells
Guard Cells
Pairs of specialized epidermal cells that regulate the opening and closing of the stomates, found in leaves
Transpiration
The evaporation of water vapor from plant surfaces
Root Pressure
The osmotic pressure in the xylem of a root
Auxins
The hormones that affect the growth of all types of plant tissues
Gibberellins
The hormones that affect plant growth as well as the development of fruits and seeds
Tropism
A growth response in a plant caused by a stimulus that comes from one direction
Author
seena10
ID
97588
Card Set
Plants.txt
Description
Plants Vocabulary for AP Biology
Updated
2011-08-19T18:30:50Z
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