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AP Biology Plant Vocabulary
Vocabulary Over The Plants And Plant Hormones Chapters In AP Biology
67
Biology
10th Grade
01/23/2009

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Term
Bryophyte
Definition
A Plant That Has No Vascular System, And Includes Mosses, Hornworts, And Liverworts.
Term
Seedless Vascular Plants
Definition
Plants That Have A Vascular System, But Rely On Spores To Reproduce.
Term
Vascular Plants
Definition
Any Plant That Has A System That Carries Nutrients, Sugar, And Water Through The Plants.
Term
Roots
Definition
A System Of The Plant That Absorbs Nutrients And Water To Supply To The Rest Of The Plant; Grow Downward.
Term
Shoots
Definition
Any Part Of The Plant That Grows Above The Ground.
Term
Monocots
Definition
A Plant That Contains Only 1 Cotyledon, Has Parallel-Veined Leaves, The Primary Vascular Bundles Are Scattered, And The Flowers Are In Parts Of 3's.
Term
Dicots
Definition
A Plant That Has 2 Cotyledons, Has Net-Veined Leaves, The Primary Vascular Bundles Are In A Ring, And The Flower Parts Are In 4's And 5's.
Term
Collenchyma
Definition
Have Larger Cell Walls, Plant Cells
Term
Parenchyma
Definition
Thin And Flexible Cell Walls, Large Central Vacoule, Plant Cell
Term
Schlerenchyma
Definition
Very Thick Cell Walls, Plant Cell
Term
Xylem
Definition
Vascular Tissue That Carries Nutrients And Water Upwards Through The Plant
Term
Phloem
Definition
Vascular Tissue That Carries Sugar Downwards To The Roots
Term
Dermal Tissue
Definition
Tissue That Covers The Outside Of A Plant And Protects It From Energy
Term
Vascular Tissue
Definition
Tissue That Carries Water And Nutrients Through The Plant To Allow It To Function Properly
Term
Ground Tissue
Definition
Made Mostly Of Parenchyma Cells; Fills Space Between Vascular And Dermal Tissues
Term
Apical Meristems
Definition
The Location At The Tip Of A Plant Where New Sprouts Can Grow Out Of The Plant, Or A Flower Can Also Grow In Its Place
Term
Lateral Meristems
Definition
Locations On The Stems Of A Plant Where New Stems Or Flowers Can Grow
Term
Primary Growth
Definition
The Upward Growth Of A Plant.
Term
Secondary Growth
Definition
The Outward Growth Of A Plant, Occurs Mostly In Woody Plants.
Term
Zone Of Cell Division
Definition
The Place In The Roots Of A Plant Where Cell Division And Multiplication Takes Place
Term
Zone Of Elongation
Definition
The Area Of The Plant Where The Cells Are Reproducing Quickly And The Plant Is Growing
Term
Zone Of Maturation
Definition
Area Where A Part Of The Plant Enlarges, And Finishes Its Growing Cycle.
Term
Roots Of A Monocot Plant
Definition
Roots That Are Adventitous; What Kind Of Plant?
Term
Roots Of A Dicot Plant
Definition
Roots Are Primary And Adventitous; What Kind Of Plant?
Term
Cuticle
Definition
Waxy Covering On The Outside Of The Plant That Prevents Water Loss
Term
Epidermis
Definition
The Outside Covering Of A Leaf; Has An Upper And Lower
Term
Upper Epidermis
Definition
Used To Gather Sunlight; Part Of Epidermis: Upper Or Lower?
Term
Palisade Layer
Definition
Layer Of A Leaf That Contains The Chloroplasts Used To Undergo Photosynthesis
Term
Chloroplasts
Definition
The Organelle In The Leaf Of A Plant That Undergoes Photosynthesis To Give Food To The Plant
Term
Spongy Layer
Definition
Layer Of A Leaf With Many Pores To Allow The Passage Of Gases, Chemicals, And Other Nutrients Needed For Photosynthesis
Term
Stomata
Definition
Openings In A Plant That Open To Allow Oxygen And Chemicals Into A Leaf For Photosynthesis
Term
Guard Cells
Definition
Cells That Open And Close The Stomata
Term
Pistil
Definition
Female Reproductive Organ In A Plant That Recieves Pollen And Consists Of The Stigma, Ovary, And The Style
Term
Stigma
Definition
Tip Of Pistil That Collects Pollen
Term
Style
Definition
Tube Down To The Ovary Of The Pistil Used When A Pollen Cell Sends A Tube Down To The Ovary To Send Sperm To Fertilize The Egg
Term
Ovary
Definition
System In The Pistil That Contains The Ovules
Term
Ovule
Definition
The Egg Of A Plant
Term
Stamen
Definition
The Male Reproductive System Of A Plant; Consists Of An Anther And A Filament; Produces Spores
Term
Anther
Definition
Tip Of The Stamen, Used To Produce And Hold Pollen
Term
Filament
Definition
'Stem' Of A Stamen; Holds Anther Above Plant
Term
Petals
Definition
Brightly Colored Things On Outside Of Plant That Attract Pollenators
Term
Sepals
Definition
Green 'Petals' That Hold The Bud Closed And Protect It Until It Blooms
Term
Alteration Of Generations
Definition
The Name Of The System Where A Plant's Reproductive Cycle Where It Switches Between Sporophyte And Gametophyte.
Term
Haploid
Definition
A Plant Generation That Produces Only One Set Of Chromosomes
Term
Diploid
Definition
A Plant Generation That Produces More Than One Set Of Chromosomes
Term
Sporophyte
Definition
A Plant Type/Generation That Relies On Spores To Reproduce
Term
Gametophyte
Definition
A Plant Type/Generation That Uses Spores And Sexual Reproduction To Reproduce, Seeds
Term
Double Fertilization
Definition
The Fusion Of A Sperm Cell And An Egg Cell To Create A Seed Of The Same Species
Term
Zygote
Definition
The Egg When It Is Fertilized
Term
Cotyledon
Definition
The Embryonic Leaf In A Plant
Term
Auxin
Definition
Hormones That Affect The Growth Of Plant Tissues; Stimulates Of Slows Growth; Stimulates Cells to Lengthen Or Differentiate; Affects Abscission
Term
Indoleactetic Acid (IAA)
Definition
Affects The Roots And Shoots Tips Of The Plant
Term
Gibberellins
Definition
Hormones That Promote Cell Division And Elongation; In No Way Inhibit Growth; Also Responsible For Promoting Growth In The Embryo Of The Seed
Term
Cytokinins
Definition
Hormones That Promote Cell Division
Term
Ethylene
Definition
A Hormone That Stimulates The Release Of Dormancy, Leaf And Fruit Abscission, Flower Opening, Flower And Leaf Senescence, And Fruit Ripening
Term
Abscisic Acid
Definition
Hormone That Increases In Concentration As The Days Become Shorter; Reason The Leaves Fall Off Trees In The Fall.
Term
Tropism
Definition
The Growth Of A Plant In A Specific Direction In Response To A Stimulus
Term
Positive Tropism
Definition
Movement Toward A Stimuli
Term
Negative Tropism
Definition
Movement Away From A Stimuli
Term
Phototropism
Definition
Tropism Involving Light
Term
Geotropism
Definition
Tropism Involving Gravity
Term
Thigmotropism
Definition
Tropism Involving Response to Touch
Term
Hydrotropism
Definition
Tropism Involving Growing Toward Water
Term
Nastic Movement
Definition
Movement In Response To A Stimuli But Independant On The Direction Of The Stimulus; Ivolves Change In Turgor
Term
Thermonasty
Definition
Opening And Closing Of Flowers In Response To Temperature Changes
Term
Seismonasty
Definition
Mechanical Movements
Term
Photoperiodism
Definition
Response Of A Plant To Changes In The Length Of Day Or Night; Abscission And Flowering Are Controlled By This
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