2. Growth and Development
Meristem:
Undifferentiated
cells that divide
and differentiate
rapidly.
Germination:
Growth from a
seed to a seedling
3. Growth
Growth Types Growth in response
Primary to a stimulus
Secondary Geotropism
Phototropism
4. Tissues
Dermal Tissue: offers protection and prevents
water loss
Epidermis
Vascular Tissue: transportation of materials
Xylem and Phloem
Ground Tissue: production and storage of sugars
Parenchyma: versatile with varying functions
Collenchyma: support structure
Sclerenchyma: support structure, cells are dead
5. Systems
Root
Taproot vs fibrous
Stem
Herbaceous vs woody
Leaves
8. Transport Tissues
Transports water up through
Xylem:
the roots to other parts of the plant.
Turgor Pressure
Transports sap from the
Phloem:
photosynthetic parts of the plant
(leaves) to the rest of the plant.
9. Transporting Water
Stomata-tiny openings
on the leaf that allow
gas exchange and
water loss
Guard cells-open and
close stomata for the
sake of homeostasis
Transpiration: water
lost through stomata
causes a difference in
pressure. This results in
water being “sucked
up” through the xylem.
11. Leaves
Cuticle: Waxy coat on the outside of the
leaf
Trichomes: Little “hairs” on the leaf
12. Leaves Continued
Mesophyll-groundtissue in leaf. Where
most photosynthesis in plants takes place.
Chlorophyll-pigment that causes green
coloration
Chloroplasts-organelle unique to
photosynthetic organisms which allows
photosynthesis to occur
13. All Images
Courtesy of Wikipedia
http://en.wikipedia.org/wiki/Meristem
http://en.wikipedia.org/wiki/Germination
http://en.wikipedia.org/wiki/Tree_rings#Growth_rings
http://en.wikipedia.org/wiki/Tree_rings#Growth_rings
http://en.wikipedia.org/wiki/Fibrous_root_system
http://en.wikipedia.org/wiki/Fibrous_root_system
http://en.wikipedia.org/wiki/Tree
http://en.wikipedia.org/wiki/Herbaceous_plant
http://en.wikipedia.org/wiki/Stomata
http://en.wikipedia.org/wiki/Leaf
http://en.wikipedia.org/wiki/Corn
