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Key Area 2.5

Revision for Key area 2.6 Transport systems in Plants

QuestionAnswer
State the three organs of a green plant Roots, Stem, Leaves
State 1 structural feature of xylem dead cells, contain rings of lignin
State 1 structural feature of phloem living cells, companion cells, sieve plates,
What is the function of stomata? To allow oxygen and water to leave the leaf and carbon dioxide to enter.
What is the function of the guard cells? To control the opening and closing of the stomata
Name the part of a plant where water is absorbed by osmosis Roots (root hair cells)
Name two factors which would increase transpiration rate High temperature, High wind speed, Low humidity, Large surface area
What is transpiration? Movement of water through a plant and evaporation out of the leaf through stomata
Describe the pathway of water through a plant Root --> Stem (xylem)---> Leaf
What transports water through the stem of a plant? Xylem
What transport sugar through a plant? Phloem
Created by: MissBryce
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