7th Science Plants Outline Flashcards
What are the seven characteristics of plants?
- Eukaryotic cells
- Plants cells contain chloroplasts and chlorophyll
- Multicellular
- Size varies -very small to very large
- Cuticle - waxy protective layer on leaves, stems and flowers
- Plant cells have cell walls made of cellulose
- Producers - aka autogroph
Plant classifications are?
- Phyla are called Divisions
- Binomial nomenclature
- Genus species
To move things from one place to another?
Transport
Composed of tubelike cells that transport water and nutrients to plants?
Vascular Tissue
Carries water and dissolved nutrients from roots to stem?
Xylem
Carries dissolved sugars throughout plant?
Phloem
Way in which water and nutrients move from cell to cell in mosses?
Osmosis and Diffusion
What type of plants can be described as:
- lack vascular tissue
- osmosis and diffusion
- moist environments
- DO NOT have roots, stems or leaves
- have rhizoids
- spores?
Nonvascular Plants
What type of plants can be described as:
- 90% of plants
- have vascular tissue - xylem and phloem
- have roots, stems, and leaves
- all environments
- small to large in size
- spores and seeds ?
Vascular Plant
Daughter cell produced from a haploid structure?
Spores
A plant embryo, its food supply and a protective covering?
Seed
Leaves of ferns?
Frond
A structure that anchors a nonvascular plant to a surface?
Rhizoid
A group of similar types of cells the work together to carry out specific tasks?
Tissue
Vascular plants are classified by reproduction. Name the two types and explain difference.
- Vascular Seedless Plants - use spores to reproduce
2. Vascular Seed Plants - use seeds to reproduce
Name some examples of Vascular Seedless Plants.
Ferns, horsetail, club mosses
Name some examples of Vascular Seed Plants.
Redwood trees, azalea, gardenias, ryegrass, clover, carrots, and squash
What do stems do?
- connect roots to leaves
- support branches and leaves
- contain vascular tissue
- transport water, minerals and food.
How are stems classified?
- Herbaceous - soft and green
2. Woody - stiff usually not green
What vascular tissue transport water and nutrients from roots to leaves?
Xylem
What vascular tissue transports dissolved sugars from leaves to roots?
Phleom
What is a layer to tissue that produces new vascular tissue and grows between xylem and phleom?
Cambium
What can be woody or herbaceous and trail on ground or climb a structure?
Vines
What are modified stem with sharp pointed end?
Thorns
What is the major site of photosynthesis and cellular respiration?
Leaves
What are the top and bottom layers of leaves called?
Epidermal Cells
What is the waxy, protective layer on leaves, stems and flowers AND reduce amount of water evaporating from plant leaf called?
Cuticle
What does this describe:
- small opening in the epidermal layer of leaves
- opens to allow carbon dioxide, oxygen and water vapor to pass though.
- have 2 guard cells around it to control its size?
Stoma (singular) ot Stomata (plural)
What does this describe:
- below upper epidermis
- main site of photosynthesis
Palisade Mesophyll Cell
What does this describe:
- below palisade mesophyll cells
- enables gasses to diffuse throughout a leaf?
Spongy Mesophyll Cell
What does this describe:
- contain diploid plant embryo
- food supply for embryo
- hard outer covering?
Seeds
What are haploid structures?
Spores
How are seeds dispersed?
Seeds are carried by water, wind, and animals or humans
What can be described as:
- seeds produced in fruit
- all produce flowers
- almost all food we eat comes from plants in this group?
Angiosperms
What can be described as:
- seeds produced in cone
- flowerless?
Gymnosperms
Name some examples of angiosperms.
Tulips, roses, grasses, peach trees, pecan trees
Name some examples of gymnosperms.
Conifers like pine trees and redwood trees, cycads, gingkoes gnetophytes
Angiosperms are classified into what two groups?
Monocot and Dicot
What type of angiosperms can be described as:
- leaves are narrow with parallel veins
- flower parts in multiples of 3
- vascular tissue in bundles scattered
- one cotyledon?
Monocot
What type of angiosperms can be described as:
- leaf veins are branched
- flower parts in multiples of 4 or 5
- vascular tissue in bundles in rings
- two cotyledon?
Dicot
How are plant root classified?
- Taproots
- Fibrous roots
- Modified roots
What is a main root that grows straight down deep into the ground?
Taproot
Name some examples of taproots.
Carrots, pine trees
What is a many threadlike roots of equal length that spread out through the soil forming a mat?
Fibrous roots
Name some examples of fibrous roots.
Tomatoes, pansies
What is a tubers?
Modified root
Name an example of a modified root.
Potato
Species of plants that are indigenous or naturalized to a given area?
Native Plants
An introduced, alien, or exotic species is a species living outside its native range?
Nonnative Plants
Nonnative plants thriving outside cultivation, expanding into natural areas and disrupting native plant communities?
Invasive Plants