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24 Cards in this Set
- Front
- Back
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Tissue types |
Dermal, vascular, ground |
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Meristem parts for tissue development |
Outer part for dermal. Middle part for ground. Inner part for vascular. |
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Where do tissues come from |
The meristem |
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Dermal tissue and use |
Outer cellular layer. Single layer of packed cells. Protects plant, exchange of materials, separates internal from external environment |
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Ground tissue and use |
Middle part of cell. Between vascular and dermal. Makes up most of tissues in roots, stems and leaves. Storage, support, photosynthesis, secretion |
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Pith |
Internal to vascular tissue |
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Cortex |
External to vascular tissue |
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Vascular tissue and use |
Includes phloem and xylem. Transport of materials, continuous throughout plant. |
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Define stele |
Vascular tissue collectively. Arrangements depends on species and organ. Can be vascular cylinder or vascular bundle |
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Vascular bundle |
Strands of vascular tissue |
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Stele shape of an angiosperm root |
Vascular cylinder |
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Stele shape of an angiosperm leaf or stem |
Vascular bundles |
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Types of ground tissue cells |
Parenchyma Sclerenchyma
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Parenchyma |
Cells in ground tissue . Most abundant. Can change use |
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Chlorenchyma |
Parenchyma with photosynthesis. Elongated or branched. |
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Aerenchyma |
Spongy parenchyma with air spaces. Wet plant growth |
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Collenchyma |
Thick primary walls not lignified. Support. |
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Sclerenchyma |
Secondary wall, lignified. Support and protection. |
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Types of sclerenchyma |
Fibres and sclereids |
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Types of parenchyma |
Transfer cells Chlorenchyma Aerenchyma Collenchyma
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Xylem cell types |
Tracheids And Vessels. Bot have secondary walls, dead at maturity. Secondary walls deposited as protoplast dies |
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Tracheids |
All vascular plants. Water movement. Cells in vascular tissue. |
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Vessels |
Cells in vascular tissue. In angiosperms only. Allows water to flow through xylem through perforated end walls. |
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Sieve tube |
Phloem transport |
