Name all the cell types that make up each tissue and function in dicot leaf and they develop from which primary meristem
Tissue: Epidermis
Cell types: Epidermal cells, guard cells, and trichomes
Function: Protection, gas exchange, and water regulation
Develop from: Protoderm
Tissue: Mesophyll
Cell types: Palisade mesophyll cells and spongy mesophyll cells
Function: Photosynthesis and storage
Develop from: Ground meristem
Tissue: Vascular
Cell types: Xylem cells (tracheids and vessel elements) and phloem cells (sieve elements and companion cells)
Function: Transport of water and nutrients
Develop from: Procambium
Tissue: Ground
Cell types: Parenchyma cells, collenchyma cells, and sclerenchyma cells
Function: Support and storage
Develop from: Ground meristem
Name all the cell types that make up each tissue and function in monocot leaf and they develop from which primary meristem and simple tissue and complex tissue
Tissue: Epidermis
Cell types: Epidermal cells and guard cells
Function: Protection and gas exchange
Develop from: Protoderm
Tissue: Mesophyll
Cell types: Palisade mesophyll cells and spongy mesophyll cells
Function: Photosynthesis and storage
Develop from: Ground meristem
Tissue: Vascular
Cell types: Xylem cells (tracheids and vessel elements) and phloem cells (sieve elements and companion cells)
Function: Transport of water and nutrients
Develop from: Procambium
Tissue: Ground
Cell types: Parenchyma cells and sclerenchyma cells
Function: Support and storage
Develop from: Ground meristem
Simple tissue: Epidermis
Cell types: Epidermal cells and guard cells
Function: Protection and gas exchange
Develop from: Protoderm
Simple tissue: Collenchyma
Cell types: Collenchyma cells
Function: Support
Develop from: Ground meristem
Simple tissue: Sclerenchyma
Cell types: Sclerenchyma cells
Function: Support
Develop from: Ground meristem
Complex tissue: Xylem
Cell types: Tracheids and vessel elements
Function: Water and mineral transport
Develop from: Procambium
Complex tissue: Phloem
Cell types: Sieve elements and companion cells
Function: Transport of organic compounds
Develop from: Procambium
Complex tissue: Mesophyll
Cell types: Palisade mesophyll cells and spongy mesophyll cells
Function: Photosynthesis and storage
Develop from: Ground meristem
To determine the cell types that make up each tissue and function in a dicot leaf, as well as the primary meristem from which they develop, we need to understand the basic structure of a leaf and the developmental processes involved.
Dicot leaves typically consist of several layers or tissues. From the upper surface to the lower surface, these tissues include the upper epidermis, palisade mesophyll, spongy mesophyll, lower epidermis, and specialized tissues like the vascular bundles.
1. Upper Epidermis:
- Cell type: Epidermal cells
- Function: Protection and prevention of excessive water loss
- Development: Epidermal cells primarily develop from the protoderm, which is the primary meristem responsible for producing the epidermis.
2. Palisade Mesophyll:
- Cell type: Palisade parenchyma cells
- Function: Photosynthesis and storage of products
- Development: Palisade parenchyma cells primarily develop from the ground meristem, which is the primary meristem responsible for producing the ground or fundamental tissues.
3. Spongy Mesophyll:
- Cell type: Spongy parenchyma cells
- Function: Photosynthesis, gas exchange, and storage of products
- Development: Spongy parenchyma cells also develop from the ground meristem.
4. Lower Epidermis:
- Cell type: Epidermal cells
- Function: Protection and gas exchange
- Development: Similar to the upper epidermis, the lower epidermis develops from the protoderm.
5. Vascular Bundles:
- Cell types: Xylem and phloem elements, as well as associated cells like companion cells and fibers.
- Function: Transport of water, nutrients, and sugars
- Development: The vascular bundles, composed of xylem and phloem, develop from the procambium, which is the primary meristem responsible for producing the vascular tissues.
It's important to note that these tissues and their cell types can vary slightly across different dicot leaf species, but this is a general overview based on the typical structure of a dicot leaf.