Transcript Vascular Tissue associated with Transpiration

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Chapter 29-30
With your 1st Partner:
1. Cut out the phylogenetic Tree
2. Cut out the plants and place them at the top in order of evolution
3. Use the word bank to complete the chart
Chapter 29-30
1
Conifers
Ferns
Flowering Plants
Mosses
2
Angiosperm
Bryophytes
Gymnosperm
Pteridophytes
(Tracheophytes)
3
Flowers/Fruit
Non-Vascular Land plants
Pollen/Naked seeds
Seedless vascular plants
4
Ancestor Green algae
Non-Vascular Plants
Seed Plants
Seedless Plants
Vascular Plants
Place each picture/word in the correct location on the phylogenetic tree
5
Answer
mosses
Bryophytes
non-vascular
land plants
ferns
Pteridophytes
seedless
vascular plants
seedless plants
non-vascular plants
colonization of land
From green algae
Chapter 29-30
conifers
Gymnosperm
pollen &
“naked” seeds
flowering plants
Angiosperm
flowers & fruit
seed plants
vascular plants
3:00
With your 2nd Partner:
1. Cut and glue down the flower diagram
2. Label everything you can
3. Distinguish between male and female parts
4. List the pollination process
(starting with a bee - ending
with the complete fertilization
causing the formation of the
endosperm and zygote
Word Bank:
Anther
Carpel
Egg
Filament
Ovary
Pollen
Stamen
Stigma
Style
Chapter 38
Answer
Chapter 38
Filament
Stamen
Style
Pollination: A bee picks up a pollen grain from the anther, then lands
on the sticky, nectar-laced stigma of the carpel transferring the
pollen grain and beginning the process of double fertilization
(see next slide)
Chapter 38
Fertilization in flowering plants
Double fertilization
2 sperm from pollen grain
• 1st sperm makes the pollen tube, then
fuses with 2 polar nuclei = endosperm
= 3n, Triploid
endosperm = food tissue for the new seedling
• 2nd sperm gets to fertilize the egg = zygote
= 2n, diploid
Chapter 35
6:00
With your 3rd Partner:
1. Cut and glue down the leaf cross section
2. Label #1 - 9
3. Detail Transpiration Write about the leaf anatomy involved
Write about the vascular tissue,
Write about the forces driving it
Word Bank:
Cuticle
Epidermis (upper/lower)
Guard Cells
Mesophyll Layers (Palisades/Spongy)
Phloem
Stomata
Xylem
6
5
3
7
4
1
2
8
9
Leaf Anatomy associated with Transpiration
Chapter 35-36
1 Guard Cells regulates opening of stoma to increase or decrease transpiration
2 Stoma pores (more numerous on the bottom of most leaves) for exchange of CO , O
2
2
& water in transpiration
3 Palisade Layer
4 Mesophyll/Spongy Layer area for gas & water exchange
5 Upper Epidermis
6 Cuticle
6
7 Lower Epidermis
3
8 Xylem vascular tissue, transpiration pull moves
4
water & mineral from roots to shoots to leaves
9 Phloem
5
7
1
2
8
9
Vascular Tissue associated with Transpiration
Transpiration: Movement of water through a plant and eventual
evaporation from leaves (but also stems & flowers)
Xylem - Vascular tissue that moves Water & Minerals Up
(from Roots to Shoots to Leaves)
vessel
elements
Sclerenchyma Cells
(dead at functional maturity)
tracheids
water-conducting
cells of xylem
Chapter 35-36
Forces associated with Transpiration
If the molar concentration of mineral solution in the soil is said
to be 0.2 Molar. Calculate the solute potential at 21˚C.
Bulk flow - movement of fluid driven by pressure
 S = - iCRT
• Starts with Root pressure from high
water potential to low (soil = -0.3 to root hairs = 0.6)
apoplast - water movement through cell wall
symplast - water movement through plasmodesmata junctions connecting cytosol of neighboring cells
Casparian Strip - a water proof band of cell wall material
along the endoderm of roots that serves to assist the
flow of water and minerals into the xylem
Then moving water from roots = -0.6 to shoots = 0.8 to leaves = -1.0 through the Xylem by way of:
• Cohesion - hydrogen bonding btw
water molecules, makes them “cling”
together
• And Adhesion - adhering to the cell wall
• Leaf Transpiration (most important factor in movement of water up a
tree)
• causes negative pressure pulling water upward by
of tracheids and vessel elements in the xylem
way
Relate and Apply – Think of sucking on a straw – you create
A negative pressure, driving the liquid from the cup to your mouth
= - (2) (0.2M) (0.0831 Liters/Mole) (294)
= - 9.77 bars
Chapter 35
9:00
With your 4th Partner:
1. Referring to the leaf cross section
2. Detail Photosynthesis Write about the leaf anatomy involved
Write about the organelle involved
Sketch and label the Light Dependent
and Light Independent Reactions
6
5
3
7
4
1
2
8
9
Leaf Anatomy associated with Photosynthesis
1 Guard Cells regulates opening of stoma to regulate exchange of CO
2
Chapter 35
and O2
2 Stoma pores (more numerous on the bottom of most leaves) for exchange of CO , O
2
2
& water in transpiration
3 Palisade Layer column-shaped cells with a high concentration of chloroplast for photosynthesis
4 Mesophyll/Spongy Layer area for gas & water exchange
5 Upper Epidermis
6
6 Cuticle
7 Lower Epidermis
3
8 Xylem
4
9 Phloem vascular tissue that carries “food to the floor”
5
7
1
2
8
9
Vascular Tissue associated with Photosynthesis
Chapter 35/36
Photosynthesis: Process carried out by plants and some bacteria
that converts sunlight into sugar.
Phloem: food-conducting cells (“Phloem = food to the floor”)
 Collenchyma cells (these cells are still alive at functional maturity)sieve plate elements & companion cells
Chapter 35/36
Bulk Flow - negative pull due to
Leaf Transpiration through the
xylem’s vessel element. Water
moves from high concentration
to low concentration, so the
lower (more negative) the
greater the movement,
“Source to sink” - (leaf to root) Sugar made in leaves
through photosynthesis travels down with a positive
push as the high water potential in the xylem moves
toward the low water potential within the sucrose-rich
phloem - increases phloem pressure & drives sugar
down.
Chapter 35/36
Organelle & Process associated with Photosynthesis
Chloroplast:
Grana - Thylakoid Membrane - Chlorophyll = Makes ATP!
Stroma - Calvin Cycle (Citric Acid Cycle) = Makes Food (Carbs)
Reactants
CO2
H2O
Light
NADP+
ADP + P
Thylakoid
Light-Dependent
Reaction
Calvin Cycle
In the stroma
ATP
NADPH
Products
Carbohydrates
O2
Sugar (glucose) C6H12O6