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CVEN 342 Final Exam questions with complete solutions graded A+
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CVEN 342 Final Exam questions with complete solutions graded A+
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CVEN 342 Final ExamAxial - correct answer ✔✔longitudinal
Wood - correct answer ✔✔small, clear specimens free of macroscopic defects
Timber - correct answer ✔✔Sawn structural members with many macroscopic defects
Softwood - correct answer ✔✔Conifer, Fir, Pine, Needlelike leaves
Hardwood - correct answer ✔✔Decidoues trees with broad leaves (oak, maple, ash, walnut)
Root system - correct answer ✔✔Anchor and absorbs moisture and minerals
Trunk - correct answer ✔✔Supports the crown, transports moisture and minerals, structural timber
Crown - correct answer ✔✔Produces food and seeds
Outer bark - correct answer ✔✔protection
inner bark - correct answer ✔✔transport
Cambium - correct answer ✔✔Growth
Sapwood - correct answer ✔✔Outside, provides food storage
Heartwood - correct answer ✔✔Inside, provides support, preserves dead cells
, Springwood - correct answer ✔✔light colored rings, large cell with thin walls
Summerwood - correct answer ✔✔Dark rings, small cells with thick walls
Pith - correct answer ✔✔Center
Tracheid Cells - correct answer ✔✔Longitudinal, provide support, vertical transport (soft wood)
Parenchyma Cells - correct answer ✔✔Transverse radially, provide food storage and horizontal transport
(soft wood)
Fibers in hardwood - correct answer ✔✔logintudinal support, closed
Vessels (pores) - correct answer ✔✔longitudinal, open, provide vertical transport
Middle Lamella - correct answer ✔✔Joins cells, lingnin-rich layer
Primary wall - correct answer ✔✔thin, formed first, random orientation of microfibril
Secondary wall: S1 layer - correct answer ✔✔thin, 4-6 microfibril layers, alternate helices from vertical
Secondary wall: S2 layer - correct answer ✔✔thick, 10-30 degrees from vertical
Secondary wall: S3 layer - correct answer ✔✔very thin, similar to S1 layer
cellulose - correct answer ✔✔linera polymer of glucose units, gives tensile strength, will cause
swell/shrink
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