Plant Tissues, Woody Plants, Xylem, Phloem, Dendrochronolgy Biology Lesson PowerPoint

• A =Ground Tissue, B = Dermal Tissue
• C= Vascular Tissue
Copyright © 2010 Ryan P. Murphy

http://sciencepowerpoint.com/Website Link:

 New Area of Focus: Plant Tissues and
Vascular Systems.

• Is this the type of tissue we are talking
about?
– What is a tissue in science?

• Tissue: A group of similar cells that do a job.

 3 types of plant tissues.
 -
 -
 -

 Dermal tissue: Outside layer of
plant, protects, interacts with outside.

 Ground Tissue: Below dermal tissue, stores
energy, photosynthesis occurs here.

 Vascular Tissue: Xylem and Phloem.

• Which letter is dermal tissue, ground
tissue, and which is vascular tissue?
C

• A = Vascular Tissue, B = Ground Tissue
• C= Dermal Tissue
C

• Which letter is dermal tissue, ground
tissue, and which is vascular tissue?

• Which is dermal tissue, ground tissue, and
which is vascular tissue?

“You might know
what a woody plant
is, but what is a
vascular system?”

 Vascular system: The vessels and tissue
that carry or circulate fluids such as blood
or lymph or sap through the body of a
animal or plant.

 Xylem: (Zi-lem).
 -
 -
 -

 Tubes that water and minerals move through.

 Water travels up the tree from roots to leaves.

 Old xylem doesn’t transport water but
supports plant. (Xylem is wood).

 Phloem: (Flow-em).
 -
 -
 -

 Tubes in the plant that food (sugar) moves
through.

• Review! Difference between monocot and
dicots vascular system.

• Plants Available Sheet, Parts III, IV

• Activity! Carrot and Celery Dissection.
– Please carefully dissect both and draw the
vascular system. Provide a cross cut view.

• Activity! Watching water travel up xylem.
– Cut a piece of celery at the stalk.
– Place the celery cross section into a container of
colored water.
– Wait 24 hours
– Record your findings with a visual.

• Explanation: Water will travel up the celery
through the xylem. The water molecules
climb up the small tubes because of
adhesion, called capillary action.

“Each vascular bundle
in a monocot has
xylem and phloem.”

“Helpme”
“I’mupside
down”

“Thank
you, This
is much
better.”

• Review! Is it a monocotyledon or a
dicotyledon based on the plants vascular
system.

• Review! Is it a monocotyledon or a
dicotyledon based on the plants vascular
system.
Learn more about plant tissues at…
http://www2.mcdaniel.edu/Biology/botf99/tissimages/tiss1.html

• You should be close to the top of page 7 in
your bundle.

 New Area of Focus: Woody Plants.

• Please draw the picture below of a tree.
– Use the compass provided or old cd or Petri-
dish to make a circle.

 Pith: The soft spongy substance in the
center of the stems of many plants and
trees. Wood formation begins here.
Pith

 Heartwood: Older, Darker, and harder
non-living central portion of the tree.

 Sapwood: Living wood, lighter in color,
conducts water with xylem.

Pith
Heartwood
Sapwood

 Cambium: Area just inside bark that
makes new tissues. Adds girth which
allows the plant to grow tall.

• The cambium adds new layers. The
layers to the outside (just under the bark)
are living. The layers on the inside of the
tree are mostly dead and provide strength.
Mostly Dead Cells
Living layer of Cells

• Caution! Stripping a tree, or damaging the
bark and layers just below can often
damage and kill a tree.

Pith
Heartwood
Sapwood
Cambium

• The cambium also adds a layer of cells each
year.

year.
– Scientists can age the tree and examine factors
such a climate based on these rings.

year.
– Scientists can age the tree and examine factors
such a climate based on these rings.
12 3 4 56 7 8 9 10 11

• Add as many thin tree rings as you can
from the cambium to the pith. Pith

 Dendrochronology: The dating of past
events through study of tree ring growth.

• Generally, wet years allow for more plant
growth.
– The wider rings occurred when growing
conditions were more favorable.

11
12
13
14
15
What year was the
wettest?

11
12
13
14
15
What year was the
driest?

• This cross section can show when the
tree experienced soil creep.

• Scientists will sometimes get a core sample
using a tree boring tool to get a sample.

• How old is the tree below?

• This tree is roughly 16 years old based on
the number of annual rings.

• If the tree was just cut, what year was the
tree a tiny sapling?

• What ever the year the tree was cut, - the
number of tree rings. Year -16 = Answer.

• What years did the tree experience the
largest and smallest yearly growth?

• Year 8 was the largest, so whatever eight
years ago was?

• Years 6, 9, 10, 11 were all very small.

• Years 6, 9, 10, 11 were all very small. A
drought may have occurred during 9,10,11

• Years 6, 9, 10, 11 were all very small. A
drought may have occurred during 9,10,11
Answer= 6,7,8 years ago.

• How old is the tree below?

• Which year below was the best and worst
for growing?
1984 1985 1986 1987

• Largest ring and best growing conditions
was 1985. Least – 1986?
1985
Best
1986
Worst

.
 Inner Bark: Area just inside the bark, made
of living tissue and contains the phloem.

Pith
Heartwood
Sapwood
Cambium
Inner Bark

 Outer bark: Outside of tree, provides
protection.

Pith
Heartwood
Sapwood
Cambium
Inner Bark
Outer Bark

• Activity! Dendrochronology and Trunk
Cross Section Identification.

• Activity! Dendrochronology and Trunk
Cross Section Identification.
– First we must learn a bit of chainsaw safety
and look at the equipment below.

– .

• Video (Optional) Chainsaw Safety Parts I-V
• http://www.husqvarna.com/us/landscape-
and-groundcare/support/video-library/

• Dendrochronology Available Sheet

• Teacher will give you a cross section of a
tree if available. If not use one on sheet.
Learn more about dendrochronology at…
http://web.utk.edu/~grissino/principles.htm

 Spreadsheet for upcoming investigation.
Annual Rings
(Pith to Cambium)
Width in
Millimeters
Notes
1
2
3
4
5
Keep going until…

• Wood Cut Investigation. Please complete
the following.
– A.) Age the tree according to its annual rings.
– B.) Measure the length of each annual ring
and graph in a line graph over time in
millimeters.
– C.) What years showed the most growth?
– D.) What years showed the least growth?
– E.) What patterns did you notice?
– F.) Label with Marker / Tape all of the parts of
a woody plant that we have learned.

• You should be close to page 8 in your
bundle.

• Try and figure out what picture is beneath
the boxes.
– Raise your hand when you know. You only
get one guess.

• “AYE” Advance Your Exploration ELA and
Literacy Opportunity Worksheet
– Visit some of the many provided links or..
– Articles can be found at (w/ membership to
NABT and NSTA)
• http://www.nabt.org/websites/institution/index.php?p=
1
• http://learningcenter.nsta.org/browse_journals.aspx?j
ournal=tst
.
Please visit at least one of the “learn
more” educational links provided in this
unit and complete this worksheet

• “AYE” Advance Your Exploration ELA and
Literacy Opportunity Worksheet
– Visit some of the many provided links or..
– Articles can be found at (w/ membership to NABT
and NSTA)
• http://www.nabt.org/websites/institution/index.php?p=1
• http://learningcenter.nsta.org/browse_journals.aspx?jo
urnal=tst

•Areas of Focus in The Plant Unit:
•Plant photo tour, Plant Evolution, Importance of
Algae, Lichens, The Three Types of Lichens, Non-Vascular
Plants, Bryophytes, Seedless Vascular Plants (Ferns), Seeds, Seed
Dormancy, Factors that Break Seed Dormancy, Germination, Parts
of a Young Plant, Monocots and Dicots, Roots and Water, Types of
Roots, Water Uptake and Photosynthesis, Plant Hormones, Types of
Plant Tissues, Xylem and Phloem, Woody Plants, Leaves, Light and
Plants, Transpiration, Guard Cells, Leaf Identification, Plant Life
Cycles, Seed Plant Life Cycles, Parts of a Flower, Matured Ovaries
(Fruits), Types of Fruit and much more.
•Full unit can be found at…
•http://sciencepowerpoint.com/Plant_Botany_Unit.html

• This PowerPoint is one small part of my Botany
Unit. This unit includes….
– A 5 part 2,700 slide PowerPoint roadmap full of built-in
hands-on activities, quizzes, projects, and much more.
– 13 page bundled homework package that chronological
follows the slideshow, modified version, answer keys, and
detailed lesson notes.
– 2 PowerPoint Review Games with answers, videos links,
rubrics, crosswords, projects, curriculum guides, materials
lists, and much more.
– http://sciencepowerpoint.com/Plant_Botany_Unit.html

• More Units Available at…
Earth Science: The Soil Science and Glaciers Unit, The Geology Topics
Unit, The Astronomy Topics Unit, The Weather and Climate Unit, and The
River and Water Quality Unit, The Water Molecule Unit.
Physical Science: The Laws of Motion and Machines Unit, The Atoms and
Periodic Table Unit, Matter, Energy, and the Environment Unit, and The
Science Skills Unit.
Life Science: The Diseases and Cells Unit, The DNA and Genetics Unit,
The Life Topics Unit, The Plant Unit, The Taxonomy and Classification
Unit, Ecology: Feeding Levels Unit, Ecology: Interactions Unit, Ecology:
Abiotic Factors, The Evolution and Natural Selection Unit and The Human
Body Systems and Health Topics Unit

• Please visit the links below to learn more
about each of the units in this curriculum
– These units take me about four years to complete
with my students in grades 5-10.
Earth Science Units Extended Tour Link and Curriculum Guide
Geology Topics Unit http://sciencepowerpoint.com/Geology_Unit.html
Astronomy Topics Unit http://sciencepowerpoint.com/Astronomy_Unit.html
Weather and Climate Unit http://sciencepowerpoint.com/Weather_Climate_Unit.html
Soil Science, Weathering, More http://sciencepowerpoint.com/Soil_and_Glaciers_Unit.html
Water Unit http://sciencepowerpoint.com/Water_Molecule_Unit.html
Rivers Unit http://sciencepowerpoint.com/River_and_Water_Quality_Unit.html
= Easier = More Difficult = Most Difficult
5th – 7th grade 6th – 8th grade 8th – 10th grade

Physical Science Units Extended Tour Link and Curriculum Guide
Science Skills Unit http://sciencepowerpoint.com/Science_Introduction_Lab_Safety_Metric_Methods.
html
Motion and Machines Unit http://sciencepowerpoint.com/Newtons_Laws_Motion_Machines_Unit.html
Matter, Energy, Envs. Unit http://sciencepowerpoint.com/Energy_Topics_Unit.html
Atoms and Periodic Table Unit http://sciencepowerpoint.com/Atoms_Periodic_Table_of_Elements_Unit.html
Life Science Units Extended Tour Link and Curriculum Guide
Human Body / Health Topics
http://sciencepowerpoint.com/Human_Body_Systems_and_Health_Topics_Unit.html
DNA and Genetics Unit http://sciencepowerpoint.com/DNA_Genetics_Unit.html
Cell Biology Unit http://sciencepowerpoint.com/Cellular_Biology_Unit.html
Infectious Diseases Unit http://sciencepowerpoint.com/Infectious_Diseases_Unit.html
Taxonomy and Classification Unit http://sciencepowerpoint.com/Taxonomy_Classification_Unit.html
Evolution / Natural Selection Unit http://sciencepowerpoint.com/Evolution_Natural_Selection_Unit.html
Botany Topics Unit http://sciencepowerpoint.com/Plant_Botany_Unit.html
Ecology Feeding Levels Unit http://sciencepowerpoint.com/Ecology_Feeding_Levels_Unit.htm
Ecology Interactions Unit http://sciencepowerpoint.com/Ecology_Interactions_Unit.html
Ecology Abiotic Factors Unit http://sciencepowerpoint.com/Ecology_Abiotic_Factors_Unit.html

• Thank you for your time and interest in this
curriculum tour. Please visit the welcome / guide on
how a unit works and link to the many unit previews
to see the PowerPoint slideshows, bundled
homework, review games, unit notes, and much
more. Thank you for your interest and please feel
free to contact me with any questions you may have.
Best wishes.
• Sincerely,
• Ryan Murphy M.Ed
• ryemurf@gmail.com

• The entire four year curriculum can be found at...
http://sciencepowerpoint.com/ Please feel free to
contact me with any questions you may have.
Thank you for your interest in this curriculum.
Sincerely,
Ryan Murphy M.Ed
www.sciencepowerpoint@gmail.com

Plant Tissues, Woody Plants, Xylem, Phloem, Dendrochronolgy Biology Lesson PowerPoint

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Plant Tissues, Woody Plants, Xylem, Phloem, Dendrochronolgy Biology Lesson PowerPoint