Transcript The World of Plants Chapter 1

Warm Up!
• If I give you an organism to identify, how will
you determine if it a plant?
• What tools would you need and why?
The World of Plants
Chapter 1
Photosynthesis
• TO DO: Write the equation (use words or
chemical formulas) for photosynthesis.
Why Study Plants?
• Photosynthesis Sustains Life on Earth
– Oxygen
– Food
• Medicines
• Fuel, Shelter, Paper Products
• Why else?
Botany includes:
• Plant systematics
• Plant morphology
• Evolutionary history of • Plant ecology
plants
• Plant genetics
• Plant anatomy and
physiology
Plant Characteristics and Diversity
• 1800s- Plants defined as having these 5
characteristics:
1. Plants are Multicellular Eukaryotes
• Multicellular
– Composed of many cells
• Eukaryotes
– Cells have a nucleus which contains the DNA
2. Almost all plants are capable of
photosynthesis
• Known as autotrophs
• Make their own food
• Distinguishes plants from mushrooms
3. Plants have cell walls composed of
cellulose
• a.k.a. Fiber
• A chain of glucose molecules
• Gives structure and support to cell walls
4. Plants have 2 Adult Forms
• Spores
– Reproductive cells that can
reproduce asexually
• Pollen and Egg
– Pollen fertilizes egg to
produce an embryo that
develops into an adult
5. Plants have a multicellular embryo
protected within the female parent
• Prevents embryo
from drying out
• Distinguishes
plants from algae
Write a 1-page reflection…
• What has been your experience with plants in the
past? Do you grow a garden, etc.?
• Would you consider yourself to have a “green
thumb”? Why or why not? Give examples
• What did you plant today? Why did you choose
these plants?
• Describe the steps you took to plant your seeds.
(Procedure)
• How do you plan to take care of your plants?
• Do you have any concerns about working in the
greenhouse?
• Anything else you’d like to share?
Homework: Reading and Plant
Diagram
• Directions:
• Number the paragraphs and read the passage.
Include evidence of a close reading- highlight,
underline, make notes, etc.
• Color in the diagram of the plant. Be sure to
color code the key to match your choices for
your diagram. You may use crayon, colored
pencil, or markers- whatever is available to
you!
Before you leave… POST IT!
• Write 2 things you learned today or questions
you still have