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Lecture 11
Plant Structure and Development 2
7
Biology
Undergraduate 1
02/18/2013

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Term
Root cap
Definition
A cluster of protective, slimy cells that protect the apical meristem as the root pushes through the soil
Term
Zone of division
Definition
The area of the meristem where mitosis and cytokinesis produce new cells
Term
Zone of elongation
Definition
The meristem area where the cells of the new root lengthemn
Term
Zone of differntiation
Definition
The section of the meristem where the cells of the new root become distinct
Term
Vascular bundle
Definition

The stele surrounded by a ring of epidermis cells 

Lateral roots emerge from the pericycle, inside the stele 

Term
Leaf Primordia
Definition

The embryonic leaf tissue that develops into leaves 

Produced by the shoot apical meristem, along with axillary bud meristems 

Term
Intercalary meristem
Definition

Prominent especially in grasses, a type of meristem that is located at the leaf base and pushes new tissue up 

Helps grasses endure grazing 

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