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Questions and Answers
What is responsible for the high tensile strength of plant stems and tree wood?
What is responsible for the high tensile strength of plant stems and tree wood?
- The arrangement of gymnosperm wood cells
- Glue formed by lignin binding the cellulose fibers
- Cellulose fibers intimately distributed into the lignin matrix (correct)
- The irregularities in the size of wood cells
Which component of wood can be compared to the reinforcement bars of concrete?
Which component of wood can be compared to the reinforcement bars of concrete?
- Chemically formed cellulose polymer
- Cellulose fibers (correct)
- Glue binding the wood cells
- Lignin
What is the main function of lignin in wood?
What is the main function of lignin in wood?
- Acting as the 'glue' in between the cellulose fibers (correct)
- Providing color to the wood
- Contributing to the irregularities in wood size
- Increasing the flammability of wood
Which type of wood is usually lighter in weight and has a loose grain?
Which type of wood is usually lighter in weight and has a loose grain?
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What is the basic difference between gymnosperms and angiosperms?
What is the basic difference between gymnosperms and angiosperms?
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