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MC - Plants

Multicellular Organisms - Plant Transport

QuestionAnswer
What is the function of the xylem? Transports water & minerals up the plant.
What is the function of the phloem? Transports sugar up and down the plant.
What provides the xylem with support to withstand pressure? Rings of lignin
Are xylem cells alive or dead? Dead
What is the function of the upper and lower epidermis in a plant leaf? Protection
What is the function of the palisade and spongy mesophyll cells? Photosynthesis
Which cells allow the opening and closing of the stomata. Guard cells.
What three structures are present in the phloem? Sieve tubes, sieve plates, companion cells.
State two functions of the stomata. Gas exchange and evaporation of water.
What is transpiration? The process of water moving through a plant and evaporation through the stomata.
What process allows water to move form the soil into the root hair cells? Osmosis
What process allows water to move up the xylem? Osmosis
Which three structures are found in the transpiration stream? Root hair cells, xylem, stomata
What effect does increasing temperature have on transpiration? Increases transpiration
What effect does increasing humidity have on transpiration? Decreases transpiration
What effect does increasing surface area have on transpiration? Increases transpiration
What effect does increasing wind speed have on transpiration? Increases transpiration
Ar phloem cells alive or dead? Alive
Which two structures does the vein in the leaf contain? Xylem and phloem
What is the pore on the underside of the leaf called? Stomata
What process allows water to leave the stomata? Evaporation
What are the three plant organs that contain the structures needed for transpiration? Roots, stem and leaf
If there are a high number of stomata on the bottom of a leaf will this increase or decrease transpiration? Increase
Created by: StNiniansHS