Wood Strcuture (Junior Cert Wood Technology): Flashcards
📚Flashcards
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14 cards from this deck
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Practise the cards
14 cards from this deck
Hardwood tree type
Hardwood tree type
Angiosperm trees, broad leaves, often lose leaves seasonally
Softwood tree type
Softwood tree type
Gymnosperm trees (conifers), needle-like, usually evergreen
Tracheids function
Tracheids function
Long, slender cells for water transport and support
Vessels function
Vessels function
Tubes mainly in hardwoods for efficient water transportation
Fibres function
Fibres function
Thick cells providing strength to wood
Vessels in softwoods
Vessels in softwoods
Absent
Main composition of wood
Main composition of wood
Tracheids, vessels, and fibres
Softwood main structure
Softwood main structure
Mostly tracheids for support and conduction
Hardwood structure features
Hardwood structure features
Complex: vessels, fibres, and some tracheids
Tracheids role in softwoods
Tracheids role in softwoods
Provide main support and water transport
Fibres role
Fibres role
Give mechanical strength in both wood types
Why hardwoods denser & stronger
Why hardwoods denser & stronger
Complex vessel network makes them denser and stronger
Growth rings significance
Growth rings significance
Show tree's age and past climate conditions
Wider growth rings indicate
Wider growth rings indicate
Favourable conditions like good rainfall