CHAPTER 24

Question 0

As you move upward on a root tip the tissue gets

Answer 0

Older

Question 1

Root tip include

Answer 1

Root cap
Region of apical meristem/cell division
Region of elongation
Region of maturation/cell differentiation

Question 2

Epidermis is from

Answer 2

Protoderm

Question 3

Cortex is from

Answer 3

Ground meristem

Question 4

Endodermis is from

Answer 4

Ground meristem

Question 5

Pericycle is from

Answer 5

Procambium

Question 6

Primary xylem is from

Answer 6

Procambium

Question 7

Primary phloem is from

Answer 7

Procambium

Question 8

Vascular cambium is from

Answer 8

Procambium

Question 9

Pith is from

Answer 9

Procambium

Question 10

Vascular cylinder or stele is

Answer 10

All the tissue that matures from the procambium

Question 11

DICOT ROOT

Epidermis is the

Answer 11

Outer most layer of cells

Question 12

DICOT ROOT

Cortex is composed of

Answer 12

Collenchyma and parenchyma

Question 13

DICOT ROOT

Endodermis has a strip of wax called

Answer 13

Casparian strip

Question 14

DICOT ROOT

Casparian strip forces

Answer 14

Water to flow through endodermal cells (NOT BETWEEN THEM)

Question 15

DICOT ROOT

Endodermis is _____ layer of cells

Answer 15

ONE

Question 16

DICOT ROOT

pericycle is ___ layer of cells in a dicot

Answer 16

ONE

Question 17

DICOT ROOT

Pericycle looks like

Answer 17

Parenchyma

Question 18

DICOT ROOT

Pericycle is a

Answer 18

Meristematic tissue that gives rise to branch roots

Question 19

DICOT ROOT

Branch roots arise from

Answer 19

Inside the organ

Question 20

DICOT ROOT

Primary xylem

Answer 20

Cross or star in center

Question 21

DICOT ROOT

Dicots usually do NOT have a

Answer 21

Pith

Question 22

DICOT ROOT

Primary phloem

Answer 22

Between the primary xylem arms or ridges

Question 23

DICOT ROOT

Vascular cambium

Answer 23

Occurs as flattened rectangular cells between primary xylem and primary phloem

Question 24

DICOT ROOT | Secondary growth

Answer 24

Form rings of 2nd xylem | Can have periderm

Question 25

DICOT ROOT | Cortex volume is usually ____ than the stele volume

Answer 25

LARGER

Question 26

MONOCOT ROOT | Cortex is composed of

Answer 26

Sclerenchyma and parenchyma

Question 27

MONOCOT ROOT | Cortex volume is usually ____ than the stele volume

Answer 27

SMALLER

Question 28

MONOCOT ROOT | Pericycle has ___ layers

Answer 28

Several

Question 29

MONOCOT ROOT | Pericycle looks like

Answer 29

Parenchyma

Question 30

MONOCOT ROOT | Pericycle is a

Answer 30

Meristematic tissue that gives rise to branch roots

Question 31

MONOCOT ROOT | primary xylem structure

Answer 31

Cross or star | Usually with pith

Question 32

MONOCOT ROOT | Vascular cambium is

Answer 32

NOT PRESENT

Question 33

MONOCOT ROOT | Monocots do NOT have a true

Answer 33

Secondary growth

Question 34

Root anatomy for monocots

Answer 34

``` Small cortex/large stele May have pig Larger endodermal cells 6 or more primary xylem ridges Pericycle 2 or more cell layers thick No vascular cambium ```

Question 35

Root anatomy for dicots

Answer 35

``` Larger cortex/small stele No pith Smaller endodermal cells 5 or fewer primary xylem ridges Pericycle 1 cell layer thick Vascular cambium may be present ```

Question 36

MONOCOTS ARE ESSENTIALLY _______ THAN DICOTS

Answer 36

LARGER

Question 37

Radicle is

Answer 37

The embryonic root

Question 38

Taproot system

Answer 38

Where radicle become a larger primary root that then directly or indirectly gives arise to all other branch roots

Question 39

Fibrous root system

Answer 39

Where the radicle eventually dies back leaving a collection of branch roots that are all about the same size

Question 40

ROOT MORPHOLOGY IN MONOCOTS

Answer 40

have fibrous root system

Question 41

ROOT MORPHOLOGY IN DICOTS

Answer 41

Have tap or fibrous root system

Question 42

Adventitous roots

Answer 42

Roots that do not develop from radicle or any other root tissue

Question 43

Storage roots

Answer 43

Enlarged roots that store food or water

Question 44

Buttress roots

Answer 44

Large flanges of tissue at the base of some tropical trees.

Question 45

Pneumatophores

Answer 45

Spongy, parenchymatous roots, that grow above the water level

Question 46

Aerial roots

Answer 46

Roots that arise aboveground

Question 47

Aerial roots may

Answer 47

May grow downward into the ground or may never touch soil

Question 48

Parasitic roots

Answer 48

Roots that are actually peg like projections that penetrate and grow along with the host plant

Question 49

Parasitic roots often have no ____

Answer 49

Chlorophyll

Question 50

Contractile roots

Answer 50

Have a region that slowly expands and contracts, there by pulling the plant further down into the soil

Question 51

Mycorrhizae

Answer 51

A mutualistic association between a plant roots in a fungus

Question 52

Mycorrhizae | Fungus provides the plant with ____, while the plant provides fungus with ____

Answer 52

Mineral, sugars

Question 53

Mycorrhizae are very important in

Answer 53

Prairies

Question 54

2 types of mycorrhizae

Answer 54

* endomycorrhizal | * ectomycorrhizal

Question 55

Root nodules

Answer 55

A mutualistic relationship between the bacteria in the roots of some legumes

Question 56

Root nodules The bacteria fixes ____

Answer 56

Nitrogen

Question 57

Root nodules the bacteria converts

Answer 57

Ammonia to nitrogen

Question 58

Promeristem is composed of

Answer 58

The initials and their immediate derivatives

Question 59

Root hairs arise from cells of the

Answer 59

Epidermis

Question 60

In roots, phloem most commonly occurs

Answer 60

Between the xylem ridges

Question 61

In what root tissue are casparian strips located?

Answer 61

Cortex

Question 62

Cork cambium produces ___ toward the inside and ___ toward the outside of the root.

Answer 62

Phelloderm; cork

Question 63

Lateral roots arise in the

Answer 63

Pericycle

Question 64

The region of cell division in a growing root:

Answer 64

Contains the apical meristem and nearby cells