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32 Cards in this Set
- Front
- Back
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What is Humus?
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Decaying Organisms matter
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What is SOIL?
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Mixture of clay particles, soil patricles, air, and humus.
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What does soil do?
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Support life growth
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What is Mesophyll?
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Middle tissue of a leaf
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What is spongy mesophylll?
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has irregular, cells bounded by air spaces.
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What is effect does spongy mesophyll have?
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It increases surface areas for gas exchange.
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What does the leaf vain contain?
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Xylem and Phloes
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What is found phloem?
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seive tubes with companion cells
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What is a function of phloem?
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transports organic nutrients from leaves to roots
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What are clay particles?
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particles that retain nutrients because they are negatively charged.
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What particle binds to positive minerals?
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clay particles
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What is trophisms?
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Movements towards or away from stimulus.
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Large cells that contains a lot of chloraplast is a _________
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Palside mesophyll
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Fibrous Root System
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Slender roots that contain no main root
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Water moves through the layers of a root by ______
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osmosis
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What three things must happen for transpiration to occur in leaves
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- water must exhibit cohesiveness
-the stomate must be open -water must evaporate |
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What role does transpiration play in water transport?
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pulls the water
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Tugor pressure is important to (2)
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stomate opening and closing,
plant rigidity |
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What happens when stomates are open?
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carbon dioxide enters leaves,
potassium and water enter the guard cell, tension pulls water upward |
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During transcription tension iss created by
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evaporation of water from the leaves
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What is the root type in a carrot?
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TapRoot
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What is a STOLON
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above ground stem
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Paliside mesophyll
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contains elongated cells where photosynthesis takes place
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Stomates are..
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the opening in leaf epidermis
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The root cap is produced from which zone
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Zone of Cell Division
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Function of epidermis
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root hair absorbs water and minerals
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Function of Vasscular tissue
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transports water, minerals and organics nutrients
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What does Xylem contain
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Vessel elements and tranchieds
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What does Phloem contain
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Seive tubes and companion cells
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Monocot Vascular tissue in roots are...
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in a ring
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Dicot vascular tissue in roots are
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in vascular cyclinders
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What is a tuber
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Enlarged area of underground stem that stores
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