Woody Outsides
Woody Insides
Plant Hormones
Roots
Stems
Leftovers
100

 This type of branching involves several main branches rather close to the ground.

 What is spreading branching?

100

 This is where a young woody stem stores water at its center.

What is the pith?

100

 This plant hormone triggers fruits to ripen.

What is ethylene?

100

This structure covers and protects the tender root tip.

What is the root cap?

100

 These special thick stems grow horizontally.

 What are rhizomes?

100

This is the period of inactivity that occurs before germination.

What is dormancy?

200

This type of branching comes from a main vertical stem that grows tall and straight with branches coming out of the central shaft.

What is spire-like branching?

200

Another name for this tissue is wood.

What is xylem?

200

 This plant hormone effects stem growth.

What is cytokinin?

200

These tiny tube-like projections extend from the epidemic cells of a root to absorb water and minerals.

What are root hairs?

200

 This is the chief force that draws water up a stem.

What is transpiration pull?

200

This is exhibited when plants bend toward the light.

 What is phototropism?

300

This is a section of a twig between nodes.

 What is internode?

300

This older, inner wood of a stem that serves only to support the stem.

What is heartwood?

300

This plant hormone helps to regulate normal plant growth.

What is gibberellin?

300

These are the special roots that grow from unusual regions of a plant.

What are adventitious roots?

300

 This osmotic force helps transfer water up the stem.

What is root pressure?

300

This type of fruit forms from one flower that has several pistils, like strawberries.

What are aggregate fruits?

400

These are the small openings in a stem’s bark that allow air to enter.

What are lenticels?

400

This layer produces new bark and new xylem.

What is the vascular cambium?

400

This plant growth hormone is secreted by the tips of shoots.

What is auxin?

400

This is where a root stores its food.

What is the cortex?

400

This is the upward movement of liquids through a very narrow tube.

What is capillarity or capillary action?

400

 This is the tough outer covering of an herbaceous monocot stem.

What is the rind?

500

This is the large bud at the end of a twig.

What is a terminal or apical bud?

500

These buds are responsible for a tree’s breadth and branching.

What are lateral buds?

500

This produces the hormones that control the growth of the lateral buds.

What is the terminal or apical bud?

500

 Cells in the root tip grow longer in this region.

What is elongation?

500

This is the process where substances mix throughout random molecular motion.

What is diffusion?

500

 This is the process of a new plant growing from a root, stem, or leaf of an existing plant.

What is vegetative reproduction?

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