18 Questions
What is the main difference between sapwood and heartwood?
Heartwood has living cells while sapwood does not
What are extractives commonly found in heartwood used for?
Defending the tree against insects and decay
What is the primary function of parenchyma cells in wood?
Storing food and aiding in wound healing
How is heartwood formed in trees?
By deposition of compounds within older xylem cells
Which characteristic is commonly used in wood identification?
Grain pattern and texture
In wood, what defines the grain and texture that are commonly used for identification purposes?
Growth rings and arrangement of cells
What is the primary function of inner bark?
To transport products of photosynthesis from the leaves to other parts of the tree
What is the primary difference between sapwood and heartwood?
All of the above
Which type of wood cells are involved in the storage and transport of non-structural carbohydrates?
Parenchyma cells
What is the primary cause of heartwood formation?
Accumulation of extractives in the cell lumens
Which wood surface is parallel to the pith but does not pass through it?
Tangential plane
Which of the following is NOT a primary factor used in wood identification?
Density of the wood
Which of the following is a characteristic of juvenile wood?
Lower density and strength properties compared to mature wood
What is the primary factor that influences the formation of juvenile wood?
The apical meristem
What is the term used to describe the direction of wood fibers relative to the axis of the tree?
Grain
Which of the following statements about cross-grained wood is true?
It can significantly affect wood properties
What is the term used to describe the relative size and variation in the size of wood cells?
Texture
Which of the following is true about the demarcation between juvenile and mature wood?
There is a gradual transition with no sharp demarcation
Explore how wood texture influences the choice of wood in woodworking and furniture manufacture, including the arrangement of growth layers and orientation of individual cells. Learn about primary surfaces of wood such as transverse plane, radial plane, and tangential plane.
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