Transcript Plants are adapted to Living on Land.

Plants are a diverse group of organisms.
Plants come in all shapes, all sizes, and found in
all environments.
Photosynthesis
Autotrophs
Plants share
common
characteristics
Vacuoles
Eukaryotes:
Nucleus
2-Stage
life cycles
Multicellular
Cell walls
Monday 2/25: After you retake your Quiz:
• Read The Case of the Tree Hit Man on the
Plant Resource Page.
• Big Question: How do water and food (sugars)
move through a plant?
• Identify Key Vocabulary and Answer the
Question
• Fill in your Cornell Notes
Tuesday: Do Plants Pass Gas Lab?
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Put your stuff at your desk in the middle.
Find your Lab Table/Group.
You will need your laptop.
Decide on jobs for your group members.
– Materials Manager
– Recorder
– Solution Maker/Safety Monitor
– Label Maker/ Time Keeper
Do Plants Pass Gas Lab and
Discussion?
Photosynthesis/Respiration
Objective Questions
• What materials do plants need in order to
carry out photosynthesis?
• What type of food do plants produce?
• How do plants get the energy from the food
they produce?
Giant Sequoia Probe
Where did most of the matter that makes up
the wood and leaves of this huge tree
originally come from?
Procedure:
1. Materials Manager obtain materials.
2. Mrs. Spence will add drops of BTB to cups of
water.
3. Record observations of cups before blowing
into the cups.
4. Solution Maker should exhale slowly through
straw into cup of water and BTB until it turns
green.
DO NOT DRINK/INHALE through STRAW!!
5. What happened? Why?
6. Label Maker, make labels and place on vials 13.
7. Fill 3/4 way with green water. Put one sprig of
Elodea in Vial #1 and #2. Vial #3 is just water.
8. Record observations and put vials in correct
locations.
9. Sit back down and open Plant Cornell Notes.
Objective Questions
1. What materials do plants need in order to
carry out photosynthesis?
2. What type of food do plants produce?
3. How do plants get the energy from the food
they produce?
1. What other questions do you have today?
What materials do plants need?
Where do they come from?
• Water-> Roots
• Carbon Dioxide ->
Leaves, Stomata
• Sunlight ->
Leaves, Chloroplast
How do Plants transport water and
other materials?
Most Plants have a
Vascular System.
Vascular System- long
tubelike cells that
move materials
through a plant.
ORGAN SYSTEM!!
2 tissues transport materials in the
Vascular System
Xylem- transport H2O and
nutrients up from the
roots
Little larger than phloem
Help support
Stores energy
Phloem- transport energy
and materials down from
leaves
Help support
Stores extras for energy
Another method is called Non-Vascular.
Smaller, Simpler Plants will move materials cell
by cell.
Problem: Not as speedy, so plants cannot grow
as big!!
Example: Moss
Plants make sugars
• Photosynthesis- The process that converts the
Sun’s energy into sugar or starch for the plant to
use as food.
Carbon Dioxide +
Water +
Sunlight
Glucose +
Oxygen
Plants use sugars
• Cellular Respiration-The process that converts
sugar’s chemical energy into usable energy for
plants and animals.
Glucose+
Oxygen
Water +
Carbon Dioxide +
Energy
BTB Background
• BTB is a Ph indicator.
BTB in neutral water
BTB in acidic water
BLUE
Green-Yellow
• Carbon dioxide makes water acidic
• So what color would BTB and water be if CO2 was
in the water?
Photosynthesis:
6 H2O + 6 CO2 + energy  C6 H12 O6 + 6 O2
Six molecules of water react with six
molecules of carbon dioxide and energy
from sunlight to form one molecule of
glucose and six molecules of oxygen.
Chemical Equations for Photosynthesis and Respiration
Photosynthesis:
6 H2O + 6 CO2 + energy  C6 H12 O6 + 6 O2
Six molecules of water react with six molecules of carbon
dioxide and energy from sunlight to form one molecule of
glucose and six molecules of oxygen.
Respiration:
C6 H12 O6 + 6 O2  6 H2O + 6 CO2 + energy
One molecule of glucose (a type of sugar) reacts with 6
molecules of oxygen to form six molecules of water, six
molecules of carbon dioxide, and energy.
Plants release materials through their
leaves
Gas Exchange- Plants take in carbon dioxide and
release carbon dioxide and oxygen.
But this also releases water…
Transpiration- movement of water vapor out of
a plant
Foldable
Instructions:
-Fold paper hamburger style so that 1 inch is
left over on the back.
- Unfold, then fold in half hot dog style.
Photosynthesis
Cellular Respiration
What you need to have:
Outside
Inside
Photosynthesis- Right Side
Cellular Respiration- Left Side
Photosynthesis- Right Side
Cellular Respiration- Left Side
Descriptions of the process
in your own words.
Equations written at the
bottom.
Pictures of the processes
happening.
Where it takes place
(organelle)?
Who (Which organisms)
would do the process?
Plants respond to their environment.
• Stimulus- Something that causes a response in an
organism or part of the body
• Plants respond to 3 stimuli:
– Gravity:“roots grow down, stems grow up”
– Touch: “tendrils”
– Light: “auxin”
Plants balance
Gas Exchange and Transpiration
Ways to keep water in but still get Carbon Dioxide in
and Oxygen out:
1. Cuticle- waxy protective layer on leaves and
stems.
2. Stomata- openings on the bottom of leaves that
close when air is dry keeping water in
Plant parts have special functions.
• Shoot System
– System produces
sugars and
carbohydrates
• Root System
– System absorbs
water and some
minerals
Plants grow throughout their lifetime
Stems serve 3 functions
1. Store Food
2. Provide support for the plant’s body
3. Transport materials via the vascular system
Soft Stems
Woody Stems
Soft and flexible stems
Strong, tough stems with bark
Wildflowers, vegetables
Trees, shrubs
Die in cold weather
Can live through cold winters
Tough xylem = “wood”