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Binomial nomenclature. A tour of the three domains. A tour of the major groups of animals. The Three Domains. Eukarya. Protists. Fungi. Plantae. Animalia. The Three Domains. Eukarya. Protists. Have a nucleus and organelles Have proteins associated with DNA

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Presentation Transcript
slide1

Binomial nomenclature

A tour of the three domains

A tour of the major groups of animals

slide2

The Three Domains

Eukarya

Protists

Fungi

Plantae

Animalia

slide3

The Three Domains

Eukarya

Protists

  • Have a nucleus and organelles
  • Have proteins associated with DNA
  • Use microtubules in a cytoskeleton, spindle apparatus, and cilia and flagella
  • May contain chloroplasts
  • May divide by mitosis and meiosis
slide4

The Three Domains

Eukarya

Protists

  • Have a nucleus and organelles
  • Have proteins associated with DNA
  • Use microtubules in a cytoskeleton, spindle apparatus, and cilia and flagella
  • May contain chloroplasts
  • May divide by mitosis and meiosis
slide5

The Three Domains

Eukarya

Protists

What are the major groups of protists?

  • Heterotrophs
    • Chytrids
    • Water molds
    • Slime molds
    • Protozoans
    • Sporozoans

Autotrophs

  • Red algae
  • Brown algae
  • Green algae
  • Golden algae
  • Diatoms

Mix or Both

  • Euglenoids
  • Dinoflagellates
slide6

The Three Domains

Eukarya

Protists

What are the major groups of protists?

But you can divide them into groups based on

motility as well………..

slide7

The Three Domains

Eukarya

Protists

What are the major groups of protists?

Heterotrophs with no locomotive apparatus:

amoeba

Photosynthetic Protists:

Dinoflagellates

Euglena

Diatoms

Algae

Heterotrophs with flagella:

Trypanosomes

Heterotrophs with cilia:

Paramecium

slide8

Eukarya

Protists

Amoebas

  • Change shape constantly
  • Move by means of pseudopods
  • Most are free-living cells that engulf their prey
  • Some are symbionts in animal guts
  • A few are opportunistic pathogens
slide9

Eukarya

Protists

Dinoflagellates

  • Flagellated
  • Cause of Red Tide
slide10

Eukarya

Protists

Dinoflagellates

slide11

Eukarya

Protists

Trypanosomes

Tse-Tse fly

slide12

Eukarya

Protists

Trypanosomes

Kissing Bug

slide13

Eukarya

Protists

Trypanosomes

Undulating membrane

mitochondrion

basal body

of flagellum

free flagellum

nucleus

slide14

Eukarya

Fungi

Characteristics of Fungi

  • Cell walls made of chitin
  • Filamentous body (hyphae)
  • Unusual reproduction
slide15

Eukarya

Fungi

Characteristics of Fungi

  • Survive in hostile habitats and colonize new habitats
    • Absorb mineral ions from substrates
slide16

Eukarya

Fungi

How do Fungi feed?

  • Mycelium grows into food source
  • Tips of hyphae secrete digestive enzymes
  • Enzymes break down organic material into simple forms that can be absorbed by hyphae
slide17

Eukarya

Fungi

  • Fungi known from 900 mya
  • 56,000 known species
  • Three major lineages:
    • Zygomycota
    • Ascomycota (sac fungi)
    • Basidiomycota (club fungi)
  • Imperfect fungi are those not yet classified
  • These classifications based on sexual reproductive structures
slide18

Eukarya

Fungi

  • Zygomycota
  • Recognized by
  • Zygospores;
  • clonal spores
  • inside sporangia
  • Example:
  • Bread mold
slide19

Eukarya

Fungi

  • Zygomycota
slide20

Eukarya

Fungi

  • Ascomycota (sac fungi)
  • Yeast, truffles
    • Produce their spores in special pods or sac-like structures called asci.
slide21

Eukarya

Fungi

  • Ascomycota (sac fungi)
  • Morels Cup Fungi Flask Fungi
slide22

Eukarya

Fungi

  • Basidiomycota (club fungi)
  • Mushrooms and toadstools
  • Species in this phylum produce spores on a club-like structure called the basidium. The basidium may grow free or be attached to a surface called the hymenium.
slide23

Eukarya

Fungi

  • Basidiomycota (club fungi)
slide24

Eukarya

Fungi

  • Imperfect Fungi
  • Aspergillus and Penicillium
slide25

Eukarya

Fungi

  • Fungus Among Us
  • Ascomycetes cause
    • Histoplasmosis
    • Valley fever
    • Candida (“yeast”) infections
    • Ringworm
    • Athlete\'s foot
    • Ergotism
  • Eating some basidiomycetes can be fatal
slide26

Animalia

What are Animals?

slide27

Animalia

Phylum Platyhelminthes: Bilaterial Symmetry

Flatworms, planaria, tapeworms

Acoelomates

Can be parasitic

slide28

Animalia

Planaria

slide30

Animalia

Phylum Platyhelminthes: Bilaterial Symmetry

Have an excretory system

Flame cells contain cilia that move water and other materials through the system

Most have nerve nets

Hermaphroditic: each individual has both male and female parts

slide31

Animalia

Fluke

Life

Cycle

slide32

Animalia

Phylum Nemotoda: Pseudocoelom and Complete Digestive Tract

Roundworms

Have a cuticle – sheds as it grows

slide34

Animalia

C. elegans

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