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Questions and Answers
The protoderm gives rise to the xylem and phloem.
The protoderm gives rise to the xylem and phloem.
False (B)
The procambium produces the cortex.
The procambium produces the cortex.
False (B)
The ground meristem produces the epidermis.
The ground meristem produces the epidermis.
False (B)
The protoderm gives rise to the epidermis.
The protoderm gives rise to the epidermis.
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The procambium produces the xylem and phloem.
The procambium produces the xylem and phloem.
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The ground meristem produces the cortex.
The ground meristem produces the cortex.
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Study Notes
Seed Plant Body Structure
- Composed of three organs: leaf, stem, and root.
Plant Meristems
- Plant growth is limited to specific regions where cells retain the capacity for continued cell division.
- Unlike animals, which have a generalized growth pattern.
Sclerenchyma
- Function: provides mechanical support (strength) due to thick lignified secondary walls.
- Contain large amounts of cellulose and lignin.
Sieve Cells and Plates
- Contain many pores that allow for cell-to-cell solute transport.
- Sieve plates consist of primary pit fields and occur in the end walls of cells.
Primary Meristems
- Apical meristem of the root organizes to form three primary meristems:
- Protoderm: gives rise to the epidermis.
- Procambium: produces xylem and phloem.
- Ground meristem: produces the cortex.
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