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25 Cards in this Set
- Front
- Back
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The first root of a plant to develop from a seed
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Primary root
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Secondary roots are fond in this region
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Region of secondary maturation
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3 types of roots
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primary, secondary, adventitious roots
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Where root hairs are found
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region of primary maturation
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this type of root system is consisted of one main root from which lateral roots radiate. It is commonly found in dicots and gymosperms
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Taproot system
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types of root systems
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taproot and fibrous
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an _____ is formed from a group of organs forming an interacting structure that can grow
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organism
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this structure covers the root tip and is made of thin parenchyma cells. It protects teh cells in the apical meristem as the roots grow deeper into the soil
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root cap
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cells in this region no longer enlarge. they have become rigid and mature and each have a specific function
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region of maturation
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this type of root system has no single root that stands out as the largest. it is found commonly in grasses
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fibrous root system
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this type of root develops from an organ other than a seed or root. often from stem and leaves
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adventitious roots
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cells in this region no longer divide. they become bigger to differentiate
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region of elongation
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roots that are from any pre-existing root are called
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branching, lateral, secondary roots
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The major units in plants that are consisted of groups of tissues are called
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organs
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the morphology of a root from tip back
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root cap, apical meristem(region of cell division), region of elongation, region of maturation
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the apical meristem subdivides into 3 meirstematic areas
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protoderm, ground meristem, procambium
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the protoderm produces what mature tissue
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epidermis which produces short lived root hairs
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the ground meristem produces what mature tissues
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cortex which stores starch and
endodermis which is a single layer of parenchyma cells |
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what is the name of the suberin bands in the endodermis
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casparian strip
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the procambium produces what mature tissues
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paricycle, primary xylem, primary phloem, vascular cambium
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Lateral roots appear in the region of ______
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secondary maturation
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as cells in the root cap get crushed and die, they are constantly being replaced by cells produced in the
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apical meristem
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this root is the first to develop from a seed, can give rise to lateral roots, absorbs water and minerals from the soil
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primary root
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where does cell differentation begin
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region of elongation
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where are lateral roots formed
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region of secondary maturation
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