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67 Cards in this Set

  • Front
  • Back
Bryophyta
- No vascular tissue, true roots, stems, or leaves
- No more than a few centimeters tall
- Sporophyte generation dependent on Gameotophyte generation
- H2o needed for sexual repro.
- Restricted to moist habitats
Tracheophyta
- Vascular tissue, roots, stems and leaves present in Sporophyte generayopm
- > a few centimeters
- Sporophyte is independent & dominant
- Gametophyte either dependent or independent
- H2o needed for sexual repro. [EXCEPT IN GYMNO& ANGIOSPERMS]
- Wide range of habitats
- Have the BEST evolutionary advantages
Metaphyta
The plant kingdom
Examples of Byrophyta
- Mosses
- Liverworts
Examples of Tracheophyta
- Ferns [Felinicea]
- Conifers [Gymnospermae]
- All flowering plants [Angiospermae]
Alternation of Generation
- life cycle in which a spore producing plant [Sporophyte] alternates with a gamete producing plant [Gametophyte]
The commonly seen part of the ___ plant is the GAMETOPHYTE
Moss
The commonly seen part of the ____ plant is the SPOROPHYTE
Fern
The Gametophyte is these two plants are dominant and photosynthetic. Male and female gametes are produced on the same plant. They need H2o for reproduction.
Mosses & Ferns
This plant has large, dominant Sporophyte BUT it's Gametophyte is independent. It needs H2o and it's gametes are on the same plant.
Fern
In these plants, the Gametophyte is microscopic and dependent. Male and female are separated. Water is not needed for fertilization. They produced seeds and have large, dominant Sprophytes.
Gymnosperms & Angiosperms
________ has seeds containing endosperms.
Angiosperms
________ produce flowers & fruit.
Gymnosperms
Prothallium
- Gametophyte in ferns
Protonema
- Gametophyte in mosses
Antheridium
- male reproductive structure, the "sperm" in fern & moss life history
Archegonium
- female reproductive structure, the "egg" in fern & moss life history
Mosses & Liverworts
- Byrophyta
- No vascular tissues or organs
- Gametophyte dominant
- Need H2o for fertilization
- Moist areas
Ferns [Felicineae]
- Tracheophyta
- Need H2o for fertilization
- Contains Xylem & Phloem
- Roots & leaves develop from the rhizome
- Sporophyte dominant
- Multicellular gametophyte
- Moist areas
Rhizome
- underground stem in ferns
Conifers (Gymnospermae)
- Tracheophyta
- Pollen tube carries sperm
- Contains Xylem & Phloem
- Contains roots, stems & leaves
- Sporophyte dominant
- Has seeds & cones
- Wide spread areas
Flowering plants ( Angiospermae)
- Tracheophyta
- Pollen tube carries sperm
- Contain Xylem & Phloem
- Contains roots, stems & leaves
- Sporophyte dominant
- Has flowers & seeds
- Wide spread areas
_______ have seeds & cones.
Gymnospermae
OBSTACLE: H2o & mineral nutrients are hard to obtain
SOLUTION: Rhizoids & roots
OBSTACLE: Transportation water throughout the plant
SOLUTION: Xylem
OBSTACLE: Transportation of food from manufacture sites to sites of use
SOLUTION: Phloem
OBSTACLE: Evaporation of H2o from surfaces exposed to air (Transpiration)
SOLUTION: Cuticle
OBSTACLE: Obtaining gases needed for photosynthesis & respiration
SOLUTION: Stomata
OBSTACLE: Obtaining sunlight needed for photosynthesis
SOLUTION: Leaves
OBSTACLE: Supporting body in medium lacking buoyancy
SOLUTION: Xylem
OBSTACLE: Coordination of plant growth and plant response to changes in environment
SOLUTION: Hormones
OBSTACLE: Getting gametes together without reliable supply of H2o for sperm
SOLUTION: Pollen
OBSTACLE: Dispersing new individuals to suitable locations
SOLUTION: Airborne spores
Three features that distinguish all vascular plants

[**********]
- Xylem
- Phloem
- !!!!!!!!!!!!!!!!!
Plant adaptations that allowed early land plants to reproduce without H2o
- cones
- seeds
- pollen
- flowers
Annuals
- flowering plants that complete a life cycle within one growing season
Biennials
- flowering plant that completes its life cycle in 2 years
Perennials
- flowering plant that lives for more than 2 years
Monocots
- Single cotyledon
- Parallel veins
- Floral parts in multiples of 3
- Vascular bundles scatted throughout stem
- Fibrous roots
Dicots
- Two cotyledons
- Branced veins
- Floral parts in multiples of 4 & 5
- Vascular bundles in a ring
- Taproot
Xylem
- vascular tissue that carries H2o upward from the roots to every part of the plant
Phloem
- vascular tissue responsible for the transport of nutrients and the carbohydrates produced by photosynthesis
transpiration
- the loss of H2o from lead due to evaporation
- PULLING motion
cohesion
- attraction of like molecules; H2o molecules are POLAR
- PULLING motion
adhesion
- attraction of "unlike" molecules-- attraction of H2o to sides of XYLEM cells.
- PULLING motion
root pressure
- force exerted from roots as a result of H2o absorption
- cell in root are HYPERtonic to soil
- PUSHING motion
root hairs
- increase surface area
Pressure-flow/Bulk-flow hypothesis
- Plant nutrients move from an area of GREATER to lesser concentration of that nutrient
- Leaf presents are of higher concentration of glucose of sucrose
Number of gametophytes is a fern?
- one
- one has both atheridia and archegonia
Number of gametophytes in a moss?
- two
- atheridia and archegonia are seperate
Number of gametophytes in a flower?
- two
- pollen & ovules
Alternation of process
- between mitosis/meiosis/fertilization
Alternation of chromosome numbers
- between haploid/diploid
In plant reproduction, what stage is between the diploid parent plant and the diploid young offspring plant?
- a haploid gametophyte stage
In plant reproduction, what cell division process is used to make the gametes?
- mitosis, gametophytes are haploid
double fertilization
- in angiosperms
Tissue types
- ground
- vascular
- dermal
Meristematic
- dividing cells
Apical meristem
- tip of root
- tip of stem
- leaf shoots
- PRIMARY GROWTH (vertical)
Ground meristem
- pith
- cortex
Dermal Tissue
- includes the epidermis, endodermis, cork cells, guard cells & cuticle
Lateral meristem
- growth in width
- also known as "cambiun"
- dicots have permanent cambium
herbaceous
- no wood
- green
- annuals, biennial & perrenials
woody
- xylem = wood
- phloem = inner bark
- perennials
endosperm
- stored food supply in the seed
monocot stems
- scattered phloem & xylem & fibers & pith(storage)
ex: corn
dicot stems
- central vascular tissue
- bark

ex: sunflower, trees