Biology 183, exam 4

Types of Plant Tissues

Dermal, Ground, Vascular

Types of Dermal Tissue

Guard Cells, Root Hairs, Tricomes

Ground Tissue

Parenchyma, Collenchyma Sclerenchyma

Vascular Tissue

Xylem and Phloem

Parenchyma

Storage and Phtosynthesis

Collenchyma

Supports Young Tissue

Sclerenchyma

Support Old Tissue

Xylem

Transports water and nutrients, dead

Phloem

transports sugar water, alive

Secondary Growth

In Vascular and Cork Cambium

Totipotent

Same genotype, may express different phenotypes

Phototrphism

Plants will bend toward the light, accomplished by Auxin

Location of Auxins

Meristem

Giberellins

Promotes elongation of Internodes

Cytokinin Location

Root Meristem

Cytokinin Function

Roots vs. Shoots

Ethylene is the

hormone for ripeining fruit

Absicisic Acid Function

Dehydration

Heliotrophism

Tracking the Sun

Etiolation

Responce to Dark

De-etiolation

Responce to Light

Signal Transduction Pathways

Reception, Transduction, Responce

De-etiolation Function

Greening

Blue Light Sensory

Photoreceptors

Red Light Sensory

Photochrome

Photoperiodism

Flowering in responce to daylength

Gravitropism

Plants Responce to Gravity

Thigmotropism

Plants Responce Touch

Thigmomorphogenesis

Plants Responce To Daily Touch

Thigmonasty

Rapid Movement (venus flytrap)

First Line of Defense

Physical Defense; cuticle, hairs, crystals,

Second Line of Defense

Chemical Responces

Fungi Characteristic

Often Subterranian

Fungi Characteristic

constructed of hyphae that comprise a mycelium

Septate Hypa

Has a Cell Wall

Coenocytic Hypa

Does not have a cell wall

Heterotrphic by Abosorbtion

Fungi Ccaracteristic

Saprotrophs

Decomposers

Paracitism

A creature benefits by huting another creature

Mutualism

Both creatures are benifited

Basic Fungal Life Cycle

Drawl This Out

Spores

Lead to Gametophytes

Chytrids

flagellated primitive fungi

Zygomycetes

with zygospores

Ascomycetes

“sac fungi”

Basidiomycetes

“club fungi”