Primary tissues Flashcards

(35 cards)

1
Q

Gymnosperm means

A

developing seed exposed to atmosphere

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2
Q

angiosperm means

A

enclosed seed

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3
Q

What are the 2 subcatagories of Angiosperms

A

Monocots
Dicots
based on seed leaves

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4
Q

Monocot characteristics (6)

A

One seed leaf
Parallel
Flower parts in 3
Fibrous root system(lots of smaller roots)
Pollen most monosulcate (single pore)
<10% woody

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5
Q

Dicot characteristics(6)

A

two seed leafs
netted leaf veins
flowers in 4s and 5s
primary taproot
stem vascular bundles are in a ring
pollen mostly tricolpate
>50% woody

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6
Q

Meristem

A

tissues that contain actively dividing cells

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7
Q

4 types of meristems

A

Apical meristem
axillary buds give rise to axillary meristem
lateral meristem
intercalary meristem

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8
Q

DICOT- apical meristem
vegitative vs reproductive dicot

A

the top of the plant-adds to shoot length
vegitative- produces leaves
reproductive- produces flowers

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9
Q

the stem between 2 nodes

A

internode

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10
Q

DICOT what makes up a leaf

A

Lamina (leaf blade) and petiole(twiggy thang)

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11
Q

DICOT where does the leaf attach to the stem

A

node

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12
Q

DICOT Axillary bud location
and function

A

between stem and petiole
contains axillary meristem
gives rise to axillary branch or flowers

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13
Q

DICOT what hormone controls axillary bud

A

IAA- auxin

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14
Q

DICOT root morphology

A

taproot and series of lateral roots branching from it
apical meristem at root tip

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15
Q
A
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16
Q

MONOCOT apical meristem vegitative

A

the apical meristem is very close to soil surface and protected
produces leaves inserted at nodes, internodes are very short

17
Q

MONOCOT leaves consist of

A

blade and sheath

18
Q

MONOCOT where is the axillary bud located?

A

-in a tiller
-a leaf axial that can give rise to a branch

19
Q

MONOCOT root system

A

fibrous root system
seminal root system(initial) replaced with adventitious roots

20
Q

MONOCOTwhere do adventitious roots come from?

A

arise from nodes at base of stem

21
Q

MONOCOT intercalary meristem

A

a meristem between 2 differentiated tissues
- longitudinal growth independent of apical meristem
leaf growth

22
Q

MONOCOT where is intercalary meristem located

A

Nodes of grasses, responsible for culm(stem) extention

23
Q

MONOCOT apical meristem reproductive

A

stops producing leaves and forms flowering structures

24
Q

MONOCOT intercalary meristem reproductive

A

after apical meristem forms flower, pushes shit upwards on the culm

25
the lateral(secondary) meristems (2)
MOSTLY dicots Vascular cambium cork cambium
26
vascular cambium
produces secondary phloem and xylem
27
cork cambium
woody species produces outer bark
28
secondary meristems add to
diameter and girth
29
the role of the apical meristem in roots and stems is to
generate new tissue and lengthen organs
30
The 3 primary (transitional) meristems that come from apical meristems
proctoderm, ground meristem, procambrium
31
proctoderm
forms epidermis, if damaged no other cells can do this
32
ground meristem, and what it consists of
forms cortex parenchyma cells and collenchyma cells(alive at maturity) Schlerenchyma cells (dead at maturity)
33
procambrium
produces vascular tissue that differentiate into xylem and phloem
34
primary tissues (5)
pith, cortex, primary xylem, primary phloem
35
Secondary tissues
cork, phelloderm???, secondary xylem, secondary phloem