Science
Published on Nov 18, 2015
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MORE DECKS TO EXPLORE
PRESENTATION OUTLINE
PLANTS BY: BETH BRIDGES
- Have cell walls
- Are eukaryotes
- Are autotrophs
- Contain many cells
PLANT ADAPTATIONS FOR LAND
- Ways to obtain water and other nutrients
- Retain water
- Transport materials in their body
- Support their bodies
- Reproduce
Photo by Sergiu Bacioiu
NONVASCULAR PLANTS
- They live in damp shady places
- Lack of tubes
- Have only thin cells
- Do not have roots
- Absorb water and other materials
MOSSES
- Most diverse group of nonvascular plants
- Gametophyte generation of a plant
- Rhizoids anchor the moss
- They grow in damp,shady spots
LIVERWORTS
- More than 8,000 species
- Wort is an old English word for "plant"
- Thick crust and have sporophytes that you can't see
- Named for their shape of the plants gameotype,
- Which looks like a human liver
HORNWORTS
- Fewer than 100 species
- Are seldom found on rocks and trees
- Live in moist soil often mixed with grass
- Named for their sporophytes
SEEDLESS VASCULAR PLANTS
- Have 2 characteristics
- Can grow tall due to vascular tissue
- Have strong cell walls
- Grow in moist areas
- Release spores into their surroundings
FERNS
- More than 12,000 species
- Have true stems,roots,and leaves
- Stems are underground
- Roots grow downward
- Leaves grow upward
HORSETAILS
- Very few species
- The stems are jointed
- The stems contain silica
- often called scouring rushes
- Leaves grow flat against the stem
Photo by ressaure
CLUB MOSSES
- Have true stems,roots,and leaves
- Few hundred species living today
- Has vascular tissue
- Grows in moist woodlands
- And near streams
SEED PLANTS
- Seed plant out number seedless plants
- Have vascular tissue
- Use pollen and seeds to reproduce
- We eat and wear things from seed plants
- Have complex life cycles
VASCULAR TISSUE PHLOEM
- Food moves through phloem
- Leaves makes the food
- Goes into the phloem
- And travels through out the plant
Photo by uccsbiology
VASCULAR TISSUE XYLEM
- Water and nutrients move through xylem
- Roots absorb water and minerals from soil
- Goes into the xylem
- And move upward into the stems and leaves
Photo by Joe Edwards
POLLEN
- Deliver sperm cells near the eggs
- Contain cells that later become sperms
- After the sperm cells fertilize the egg,
- New seeds develop.
- Seed plants produce pollen
SEEDS
- Has three main parts
- Contains a young plant
- Protects the young plant
- From drying out.
- Vascular tissue uses seeds to reproduce
Photo by Seryo
SEED STRUCTURE
- 3 main parts,
- Embryo,seed coat,and stored food
- The embryo for seed structure has
- More than one cotyledons.
- Seed coats protects the embryo
Photo by kuyman
SEED DISPERSAL
- Is the scattering of seeds
- Water is a mean of dispersal
- A second method involves other organisms
- A third method involves wind
- The scattering happens after seeds have formed
Photo by kaybee07
GERMINATION
- Occurs when the embryo begins to grow
- Again and pushes out of the seed,but
- Begins when the seed absorbs water,
- Then the embryo uses it's stored food
- To begin to grow.
Photo by Jason A. Samfield
ROOTS
- Roots anchor a plant in the ground,
- Absorbs water and minerals from the soil,
- And sometime stores food.
- 2 main types are, fibrous and taproot
- Most roots are good anchors
Photo by Aaron Escobar
STEMS
- Carries substances between the plants roots and leaves
- Also provides support for the plant,and holds up leaves
- Can be either herbaceous or woody
- Both types exist of phloem and xylem tissue
- Cambium dived the phloem and xylem
Photo by Nina Matthews Photography
LEAVES
- Capture the suns energy and carry out
- The food process of photosynthesis
- Vary greatly in size and shapes
- The leafs surface protects the cell inside
- The structure of a leaf is ideal for photosynthesis
Photo by blmiers2
GYMNOSPERMS
- A seed plant that produces naked seeds
- Every gymnosperm produces naked seeds,
- In addition many have needle like or scale like leaves,
- And deep growing root systems
- Are the oldest type of seed plants
Photo by Raoul Pop
ANGIOSPERMS
- All angiosperms share 2 important traits
- First, they produce flowers
- Second,they produce seeds that are enclosed in fruit
- Live almost anywhere on earth
Photo by likeaduck
MONOCOT
- Usually have long slender leaves
- Grasses, corn,wheat,and rice are all examples of monocot
- Mono means one
- Are angiosperms
- And have one seed leaf
Photo by listentoreason
DICOT
- Di means two
- Produce seeds with 2 seed leaves
- Roses,violets,and dandelions are examples of dicot
- Their leaves are wide with veins that branch many times
- More examples: trees, beans ,and apples
Photo by Science and Plants for Schools
