Transcript PLANTS

 J: Bozeman Video on Plants (7:46) –Paste questions
into your journal and Answer Questions
 TI: Evolution Unit Test Short Answer Questions DUE
at start of class NO LATE work accepted! NO
Exceptions, Evolution Unit Folder
 CW: New Seats, Set-up Unit 6: Diversity of Organisms
Folder, Class Survey
 HW: Cover page & Vocab DUE T 3/17, Label Plant &
Flower (pg 7) DUE F 3/13, Period 1  Short answer
questions DUE Th 3/12, District Assessment T 3/17
 Title & Number EACH page
Left Side
Pg # Right Side
Pg #
Table of Contents
1
Essential Questions
2
Review & Reflection
3
Unit Concept Map
4
Vocab
5
Vocab
6
Plant Anatomy Guided
Notes
Plant Life Cycle Guided
Notes
8
Label Plant & Flower
Alteration of
Generation
7
9
10
 J: What is the formula for photosynthesis? Circle the
reactants / underline the products. Where does it take
place in cells? Where are the most photosynthetic regions
of plants?
 TI: Period 1  Short answer questions
 CW: Plant Anatomy Guided Notes
 TOC:
Left Side
Right Side
7- Label Plant & Flower
8- Plant Anatomy Guided Notes
 HW: Cover page & Vocab DUE T 3/17, Label Plant & Flower
(pg 7) DUE F 3/13, Flower Structure & Reproduction DUE
F 3/13, District Assessment T 3/17
 Why are plants important for survival?
 Multicellular
 Autotrophs
 Eukaryotes
 Cell walls =Cellulose
 Photosynthetic
 Vascular vs. Non-
Vascular
 Include: trees, shrubs,
grasses, ferns, and
mosses
 Types of Roots:
 Taproot: one primary,
long and thick root exists
 Ex. Dandelions, beets
 Fibrous: no single root
grows larger than the rest
 Ex. grasses
 Root use:
 Absorb water and
nutrients
 Stabilize plant
 Meristematic: tissue that
is the source for new
cells, behind root cap
 Dermal: covers the
outside of a plant and
protects it in a variety of
ways
 Ground: surrounded by
dermal tissue, makes up
much of inside of plant,
provides support and
stores materials in roots
and stems
 Vascular: surrounded by
ground tissue, transports
water, mineral nutrients,
and organic compounds
to parts of plant
 Functions of stems:
 Produce leaves,
branches, & flowers
 Hold up plant
 Move substances
between roots & leaves
 Xylem & Phloem help
water & compounds
move throughout the
plant
 “The main organs of





photosynthesis”
Blades: thin, flattened
sections to collect sunlight
Petiole: thin stalk connecting
blade & stem
Cuticle: waxy covering to
prevent water loss
Stomata: openings on the
underside that allow CO2 &
Oxygen to diffuse in & out
Guard Cells: control opening
& closing of stomata
 Nonvascular
 Vascular
 No vessels, leaves, roots,
 Have vessels, leaves,
or stems for
food/nutrient/water
movement
 Ex. Moss, Liverworts
roots, and stems for
food/nutrient/water
movement
 Ex. Flowers, grass, trees
Mosses= Most Common!
Gemmae: Asexual Rep.
 Nonvascular
 Life cycle depends on
H2O
 Sperm must swim
through water to reach
eggs of others
 Low growing, small,
moist areas
 Ex. Mosses, liverworts, &
hornworts
 Gymnosperm: seed plant that
bears its seeds on the surface
of cones
 Ex. Pines, spruces, palm-like
plants ancient ginkgoes
 Cones: seed-bearing
structures
 Ways of Reproduction:
 Pollination: pollen transfer
from male to female structure
 Pollen Grain: male
gametophyte carried to female
structure by wind, insects, or
small animals
 Seeds: plant embryo of a plant
in protective covering
 Seed Coat: protects the embryo
 Ex. Grasses, flowering trees,
shrubs
 Flowers: seed-bearing
structures, reproductive
organs
 Ovaries: surround & protect
seeds
 Fruit: wall of tissue
surrounding the seed
 Monocots vs. Dicots: number
of seed leaves in embryo
 (Table 22.25)
 Sepals and petals are modified leaves.
 Sepals: are outermost
layer that protects
developing flower
 Petals: can help to attract animal pollinators
sepal
 Stamen: is the male structure of the flower, made up of
filament and anther
– Anther: produces pollen grains
– Filament: supports the anther
stamen
filament anther
 Carpel: innermost layer
of a flower
 Carpel includes stigma,
style, & ovary.
– Stigma: is sticky tip
carpel
– Style: is tube leading
from stigma to ovary
– Ovary: produces female
gametophyte
stigma
style
ovary
 J: Bozeman- Plant Structure- 10 facts (13:36)
 TI: Label Plant & Flower (pg 7), Flower Structure &
Reproduction wkst, Journal Weeks 25 & 26
 CW: Plants Life Cycle Guided Notes
Left Side
Right Side
9- Alteration of Generation
10- Plant Life Cycle Guided Notes
 HW: Cover page & Vocab DUE T 3/17, Formative
Assessment Chapter 7- Plants, EOC Wkbk Pgs. 181-182, 10
Questions DUE TUESDAY!, District Assessment T 3/17
KEY CONCEPT
All plants alternate
between two phases
in their life cycles.
 Alternation of Generations: A two-phase life cycle
 haploid phase
 diploid phase
 alternates between
the two
SPOROPHYTE
PHASE
fertilization
meiosis
GAMETOPHYTE
PHASE
 Sporophyte: the diploid
2N phase of life cycle,
spore-producing plant
 Gametophyte: haploid
(N) phase of life cycle,
gamete-producing plant
• The spore-producing plant is the mature sporophyte.
 sporophyte phase is diploid
 begins with fertilized egg
 spores produced through meiosis
 The gamete-producing plant is the mature
gametophyte.
– gametophyte
phase is haploid
– begins with spore
– gametes
produced through
mitosis
KEY CONCEPT
Reproduction of flowering plants takes place within flowers.
 Flowering plants pollinated when pollen grains land
on stigma.
 Wind pollinated flowers have small flowers and large
amounts of pollen.
 Pollination occurs as animal feeds from flower to
flower
– animal pollination more efficient than wind pollination
•
Male gametophytes, or pollen grains, are produced in the anthers.
– male spores produced in
anthers by meiosis
– each spore divides by
mitosis to form two
haploid cells
– two cells form a
single pollen grain
pollen grain
• One female gametophyte can form in each ovule of a flower’s
ovary.
 four female spores produced in ovule by meiosis
 one spore develops into female gametophyte
 female gametophyte contains seven cells
 one cell has two nuclei, or polar nuclei
 one cell will develop into an egg
 Pollination: occurs when a pollen grain lands on a stigma.
pollen tube
sperm
stigma
– one cell from pollen grain forms pollen tube
– other cell forms two sperm that travel down tube
 Each ovule becomes a seed.
•
The surrounding ovary grows into a fruit.
KEY CONCEPT
Seeds disperse and begin to grow when conditions are favorable.
•
•
•
Seeds dispersed by animals can have nutritious fruits or fruits that cling.
Seeds dispersed by water can have fruits that float.
Seeds dispersed by wind can have wing- or parachutelike fruits.
Cypselae
Double
samaras
 Seed dormancy is a state in which the embryo has
stopped growing.
– Dormancy may end when
conditions are favorable.
– While dormant, embryo can
withstand extreme conditions.
 Germination begins the growth of an embryo into a
seedling.
 water causes seed to swell and crack coat
 embryonic root, radicle, is first to emerge
 water activates enzymes that help send sugars to embryo
 embryonic shoot, plumule, emerges next
– leaves emerge last
 Seedling: once photosynthesis begins the plant is called this.
 Evaporation in plants,
 Cools plants
part of water cycle
 Transpiration: loss of
water vapor from
stomata of plants during
photosynthesis
 Changes cell’s osmotic
 Diffusion of CO2 into
leaf
pressure
 Causes flow of nutrients
and water up from roots.
 Factors Affecting Rate:
 More Light= More T
 Higher Temp= More T
 Low Humidity= Low T
 Low Soil Water= Low T
 Sepals: outermost circle,




protects developing flower
Petals: outside sepal,
attracts pollinators
Stamen: male part of
flower, made of anther &
filament
Filament: supports anther
Anther: produces haploid
male gametophytes
 Carpels: innermost part,
produces the female
gametophyte
 Ovary: contains ovules,
where female
gametophytes are
produced
 Style: narrow stalk of
carpel
 Stigma: sticky top of style
where pollen grains land
 Monday J: No School
 J: District Cycle Assessment Survey
 TI: Cover page & Vocab, Formative Assessment Chapter 7-
Plants, EOC Wkbk Pgs. 181-182, 10 Questions
 CW: District Cycle Assessment
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Password: Password1 (Exactly as it Appears)
Then, use your login information for the program log in.
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 Counts as a Quiz Grade!
 HW: Leaf Anatomy wkst DUE W 3/18
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 J: What role do stomata play in leaves of plants?
 TI: Leaf Anatomy wkst
 CW: Waterweed Simulation
 HW: Waterweed Simulation Analysis Questions DUE Th
3/19
 J: Alternation of Generations Crash Course Video-
Questions
 TI: Waterweed Simulation Analysis Questions
 CW: Plant Pencil Book Partner Quiz (40 pts), Booklet
Setup & work day
 Get a blue pencil book and get logged into a clicker
 Read the Plant Structure information on pg 19 then
answer questions 1-4 (F=A, G=B, H=C, I=D)
 Read the Photosynthesis information on pg 125 then
answer questions 1-4 (F=A, G=B, H=C, I=D)
 HW: Plant Booklet Assessment Due Friday!!