CHAPTER 6 QUIZ

Nodes is the area of stems where leaves are attached

Axillary Bud is the angle between the petiole of stem

Bud scale protects the buds

Number of groups of stipules tells the age of a twig

Stipules are paired, often leaflike appendages at base of a leaf

Deciduous trees never lose leaves

Tiny embryonic leaves that develops into mature leaves

3 primary meristems are protoderm, cork cambium, ground meristem

Gives rise to the epidermis

Produces primary xylem and phloem

Produces pith and cortex, both composed of parenchyma cells

Bud primordia is the strands of xylem and phloem

Leaf gap or bud gap is formed when each trace leaves a gap filled with parenchyma in the cylinder of vascular tissue

Parenchyma cells in cork for exchange of gases

Annuals are plants that die after going from seed to maturity within one growing season

Woods are secondary phloem

Tissues outside the vascular cambium, including secondary phloem

Horizontal stems that grow below-ground and habe long to short internodes

Horizontal stems that grow above ground and have long internodes.

Produced beneath the surface of the ground and tend to grow in different directions.

Swollen, fleshy, underground stem

Large buds surrounded by numerous fleshy leaves, with a small stem at lower end

Resemble bulbs, but composed almost entirely of stem tissue, with papery leaves

Flattened, leaf-like stems

In a living tree, 50% of the wood weight comes from water content.

Tangentially cut (plain-sawed or slab cut) boards show annual rings in side view

Weight per unit volume

Ability to withstand decay

Lumber is the second most widespread use of wood

Annual ring is equivalent to one year's growth of xylem