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B4 Revision

Flash Cards for B4

QuestionAnswer
chlorophyll green pigment to trap sunlight
veins vessels in leaves that carry water
cuticle waxy layer on top of leaf to prevent water loss
spongy mesophyll part of leaf that allows gas exchange
palisade layer part of leaf that contains lots of chloroplasts
osmosis movement of water from high concentration to lower concentration
turgid when water pressure in plant cell pushes against cell wall
plasmolysis when cell memebrane in plant cell seperates from cell wall
transpiration movement of water trhough a plant
xylem vessels in plant that carries water
phloem vessels in plants that carry food substances
transloction movement of food substances by the phloem
active transport moves substance from areas of low concentration to high concentration
biomass mass of living material in a trophic level
egestion ejection of materials from animals
biological control using natural predators to keep pests under control
hydroponics growing plants without the use of soil
saprophytes bacteria and fungi that cause decay
detritus dead and deaying material
Created by: ashort2
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