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Plant Morphology > Lecture 8 > Flashcards

Lecture 8 Flashcards

1
Q

Xylem Transport

A

Water

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2
Q

Phloem Transport

A

Photosynthate

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3
Q

Proto vs meta

A

Formed early, formed late

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4
Q

Tracheary elements

A

Tracheids, vessel elements. Secondary. Dead

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5
Q

Fibers, Fiber Tracheids

A

Support. Secondary. Dead

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6
Q

Parenchyma cells

A

Storage, living cells. Primary. Living

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7
Q

Middle Lamella

A

Pectins

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8
Q

Primary Cell Wall

A

Pectins, cellulose, hemicellulose

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9
Q

Plasmodesma

A

Cytoplasm opening

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10
Q

Bordered Pits

A

cavities in the lignified cell walls of xylem conduits for water‐transport system

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11
Q

Types of Secondary Cell Thickening

A

Annular, Spiral, Reticulate, Pitted

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12
Q

Secondary Cell Wall Thickening Type Pairs under Proto vs Meta

A

Annular/Spiral, Reticulate/Pitted

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13
Q

Tracheids

A

Water passes through pit membranes

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14
Q

Vessel Elements

A

Water passes through perforation plates

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15
Q

Vascular Cambium

A

Growth tissue between phloem and xylem

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16
Q

Fusiform vs Ray Direction

A

Axial, Radial

17
Q

Periclinal

A

parallel to the vascular cambium surface (i.e., new cells produced on outside and inside of cambium); produce secondary phloem and secondary xylem cells

18
Q

Anticlinal

A

perpendicular to the vascular cambium surface (i.e., new cells increase the girth of cambium); produce more cambial initials

19
Q

Axial System Includes

A

Tracheids, Fiber-tracheids, Parenchyma: rarely

20
Q

Radial System Includes

A

Parenchyma with simple pits, Occasionally tracheids

21
Q

Ray Initial

A

Produce rays. Rays are horizontally oriented in a stem and serve several functions: transport of food and water radially and storage (starch, protein, lipid)

22
Q

Fusiform Initial

A

produce secondary xylem and secondary phloem (the xylem and phloem produced during secondary growth)

23
Q

Resin Ducts

A

Secrete resin into the canal. These canals are orientated longitudinally and radially in between fusiform rays. They are usually found in late wood

24
Q

Bordered Pit includes? Inside chamber?

A

Border. Margo and Torus

25
Q

Margo

A

Cell wall-derived porous membrane that supports the torus

26
Q

Torus

A

Impermeable at center of the pit membrane. Regulates the functions of the bordered pit

27
Q

Conifer Leaf Anatomy Types

A

Needle, Linear, Scale

28
Q

Pine Leaf Type

A

Needle

29
Q

Podocarpus Leaf Type

A

Linear

30
Q

Scale Leaf Type

A

cypress

31
Q

What determines Leaf Shape

A

Number of leaves in fascicle

32
Q

Pine Needle Adaptions

A

Thick cuticle, thick-walled cell layer under epidermis,

hypodermis), Sunken stomata, Needles are retained for many years(40+y

33
Q

Secondary Cell Wall

A

Cellulose, Hemicellulose, lignin

34
Q

half-border pit-pairs

A

between ray parenchyma cells and

axial tracheids

Plant Morphology (6 decks)

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