Bio 242 Test 2

Front 1

Plant Parts

Back 1

Leaves, stems , roots, flowers.

Front 2

Plant Organs

Back 2

Plants continue developing throughput their lives and harbor embryonic, developing and mature organs at all points.

Front 3

Monocot roots

Back 3

Fibrous. Usually shallow and dense. Do not store as much material as taproots. Strong anchors. Rapidly absorb rainfall.

Front 4

Eudicot Roots

Back 4

Taproots. Stems from the radicle. Stores food to produce flowers and fruits during the reproductive season.

Front 5

Root Hairs

Back 5

Near root tips. Increase surface area in order to increase absorption.

Front 6

Water Uptake (roots)

Back 6

Water passes through hydrophillic epidermal cells of root walls to the root cortex. Passes through stele into xylem and shoot system.

Front 7

Adventitious Roots

Back 7

Arise from stems or leaves. Act as props to support tall aerial stems. Example: corn.

Front 8

Pneumatophores

Back 8

Specialized roots that stick above the waterline to provide oxygen to the roots found in anoxic mud.

Front 9

Mycorrhizae

Back 9

Form symbiotic relationships with most plants. Increase surface area for absorption, taking a small amount of water and minerals but transferring most to host plants.

Front 10

Shoots

Back 10

Stems, leaves, flowers.

Front 11

Nodes

Back 11

Points in stems where leaves are typically attached.

Front 12

Internodes

Back 12

The space between the points of attachment for leaves.

Front 13

Auxiliary Bud

Back 13

Found at the angle by each stem and leaf. Capable of forming a vegetative branch under stimulation.

Front 14

Terminal Bud

Back 14

Composed of developing leaves and a compact series of nodes and internodes. Partly responsible for inhibiting growth of auxillary buds through Apical Dominance.

Front 15

Apical Dominance

Back 15

Causes plants to grow taller instead of wider in order to increase exposure to light, especially in dense forests.

Front 16

Eudicot Flowers

Back 16

Appear in multiples of 4 or 5. Pollen grains have 3 openings (pores or furrows).

Front 17

Monocot Flowers

Back 17

Appear in multiples of 3. Pollen grains have a single opening to the outside, either a pore or a furrow.

Front 18

Vascular Bundles

Back 18

Arranged in rings in eudicots; scattered throughout or complexly arranged in stem of monocots.

Front 19

Stolons

Back 19

Runners or above ground horizontal stems.

Front 20

Rhizomes

Back 20

Horizontal underground stems.

Front 21

Tubers

Back 21

End of Rhizomes.

Front 22

Leaves

Back 22

Main photosynthetic organ of most plants.