The flashcards below were created by user
efrain12
on FreezingBlue Flashcards.
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Plants get bigger by...
- cell division and cell elongation
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Meristems
-area of unspecialized tissue
-where cell division occurs in most plants
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Initials
-meristimatic; ability for dividing cells
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Derivatives
-cells no longer divide
-forms special tissue types
-"mature" cells
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(Meristem types) Apical meristem
- apex or tip (root, stem, branch)
- increase length
-in youngest part
-hebeceous plants (non-woody) and annuals
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(Meristem types) Primary meristems
-next to apical meristem
-cells both dividing and specializing
- in roots and stems
-form primary tissues
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3 types of meristems
protoderm, ground meristem, and procambium
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Primary tissue formed...Protoderm?
Dermal- Epidermis
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Primary tissue formed...ground meristem
ground-parenchyma
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Primary tissue found...Procambium
Vascular- Xylem and Phloem
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label them....
- root camp
- root apical meristem
- proderm
- ground meristem
- procambium
- epidermis
- cortex
- vascular cylinder
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Lateral meristems (cambium, secondary meristems)
-inside of the plant
-forms when plant is older
-increases width or diameter
-woody plants
-older plants or perennials
-forms secondary tissue
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Intercalary and basal meristems
-within the stem or at base of stem
-between the other stems
- - in grasses, found at the base of plant
- ex) Basal meristem is why we have to cut grass
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Marginal meristem
-at edge or margin
-add cells to outside of a leaf
ex) explains why in spring leaves seem to grow quickly
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Floreal meristems
-form flowers rather than leaves
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