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Plant Biology > Secondary Growth > Flashcards

Secondary Growth Flashcards

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AP® Biology flashcards Biology 101 flashcards
1
Q

Secondary growth allows for:

A

Greater size, lifespan, stature, conduction, and protection

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2
Q

Secondary growth is found in

A

Gymnosperms and dicots

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3
Q

The two secondary meristems

A

Cork cambium and vascular cambium

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4
Q

Precursor to vascular cambium ring that’s part of vascular bundles

A

Fasicular cambium

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5
Q

Precursor to vascular cambium ring that’s between fascicles

A

Interfasicular cambium

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6
Q

Initials that divide 2 ways to form xylem and phloem

A

Fusiform initials

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7
Q

Parenchyma initials that provide radial transport

A

Ray initials

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8
Q

Fusiform initials

A

Divide two ways into X and P, provide axial transport

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9
Q

Ray initials

A

Parenchyma, pith rays, provide radial transport

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10
Q

Division towards the inside and outside

A

Periclinal division

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11
Q

Division that increases girth

A

Anticlinal division

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12
Q

Historical research based on the growth rings of trees

A

Dendrochronology

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13
Q

Wood closest to phloem, transport occurring

A

Sapwood

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14
Q

Wood made of old xylem, used for storage, clogged with wastes

A

Heartwood

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15
Q

Softwood

A

Gymnosperms, uniform and light, Tracheids

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16
Q

Hardwoods

A

Angiosperms, contains vessels and fibers

17
Q

All tissues on the outside of vascular cambium

A

Bark

18
Q

Periderm

A

Contains cork cambium, cork, and phelloderm

19
Q

Another name for cork cambium

A

Phellogen

20
Q

Replaces epidermis, lined with subrin

A

Cork

21
Q

Allows for gas exchange in woody stem

A

Lenticel

22
Q

Tight knot

A

Cut through branch while alive

23
Q

Loose knot

A

Branch died and bark in xylem

24
Q

Uses of secondary tissue

A

Cinnamon, drugs, quinine, aspirin, salicylic acid, lumber, syrup, rayon

Plant Biology (15 decks)

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