6 kingdoms of life
DESCRIPTION
6 Kingdoms of Life. SOL BIO: 5 a-f. The student will investigate and understand life functions of archaebacteria, monerans (eubacteria), protists, fungi, plants, and animals including humans. Key concepts include: how their structures and functions vary between and within the kingdoms; - PowerPoint PPT PresentationTRANSCRIPT
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6 Kingdoms of Life
SOL BIO: 5 a-f
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The student will investigate and understand life
functions of archaebacteria, monerans(eubacteria), protists, fungi, plants, and
animalsincluding humans.
Key concepts include:• how their structures and functions vary
between and within the kingdoms;• comparison of their metabolic activities;• analyses of their responses to the environment;• maintenance of homeostasis;• human health issues, human anatomy, body
systems, and life functions; and• how viruses compare with organisms.
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• As living things are constantly being investigated, new attributes are revealed that affect how organisms are placed in a standard classification system.
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• The grouping of organisms into kingdoms is based on 3 factors:
– 1. Cell Type– 2. Cell Number– 3. Feeding Type
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1. Cell Type- The presence or absence of cellular structures such as the nucleus, mitochondria, or a cell wallProkaryotes & Eukaryotes
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Prokaryotes• DO NOT HAVE:
•a membrane bound nucleus
•any membrane bound organelles
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Prokaryotes• DO HAVE:
• DNA• Ribosomes• Cytoplasm• Cell membrane
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Eukaryotes• DO HAVE:
• separate membrane bound nucleus • other organelles
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2. Cell # - Whether the organisms exist as single cells or as many cells
•Unicellular- single celled organism•Multicellular- many celled organism
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• Unicellular
• Multicellular
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3. Feeding Type - How the organisms get their food
–Autotroph or Producer•Makes it’s own food–Heterotroph or Consumer
•Must eat other organisms to survive
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There used to be only 5 kingdoms
1. Monera
2. Protista3. Fungi4. Plantae5. Animalia
This kingdom has now been divided into 2 – archaebacteria & eubacteria
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6 Kingdoms• Archaebacteria• Eubacteria• Protista• Fungi• Plantae• Animalia
Prokaryotes
Eukaryotes
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Kingdom Cell Type Cell # Feeding Type
Archaebacteria
Prokaryote
Unicellular Autotroph
Eubacteria Prokaryote
Unicellular Both
Protista Eukaryote
Most Unicellular
Both
Fungi Eukaryote
both Heterotroph
Plantae Eukaryote
Multicellular
Autotroph
Animalia Eukaryote
Multicellular
Heterotroph
Cell Wall
Yes
Yes
Yes & NO
Yes
Yes
NO
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Archaebacteria• Ancient
bacteria-–Live in very
harsh environments
–Extremophiles
–Methanogens–Halophiles– thermoacidop
hiles
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Eubacteria• It is the
eubacteria that most people are talking about when they say bacteria, because they live in more neutral conditions.
• Cell walls have peptidoglycan
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Bacteria• Bacteria are
unicellular prokaryotes
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Bacterial Shapes• Bacteria come in
3 main shapes–Rod or Stick
(bacilli)–Sphere (cocci)–Helical or spiral
(spirilla or borrelia)
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Bacterial Locomotion• Some bacteria
have flagella or cilia for movement
• Some secrete a slime layer and ooze over surfaces like slugs
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Bacterial Nutrition• Some bacteria
are autotrophs and can photosynthesize
• Some bacteria are heterotrophs
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Protists• Protists include
many widely ranging microbes, including slime molds, protozoa and primitive algae.
Odds & Ends Kingdom
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Protists• There are animal-like, fungus-
like, and plant-like protists
• Some are beneficial
• Some protists can cause diseases in humans, such as:
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Disease Protist Vector (carrier)
Symptoms Details
Amebic dysentery
Ameba histolytica
water diarrhea can get from tap water in some places
Giardaisis (beaver fever)
Giardia water diarrhea, vomiting
don't drink water from streams
African Sleeping Sickness
Trypanosoma Tse tse fly uncontrolled sleepiness, confusion
Only found in isolated areaslives in blood
MalariaPlasmodium Anopheles
mosquitofever, chills,
deathcan be treated with
quininelives in blood
results in millions deaths per year
Toxoplasmosis Toxoplasma cats fetal death or brain damage
pregnant women should avoid cat
litter
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Protists Disease• Amebic
dysentery
Ameba histolytica
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Protists Disease• Giardiasi
s (beaver
fever)
Giardia
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Protists Disease• African
Sleeping Sickness
Trypanosoma
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Protists Disease• Malaria
Plasmodium
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Protists Disease• Toxoplasm
osis
Toxoplasma
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Protists Locomotion• 3 types of
movement:–Pseudopod (false foot)
–Flagella/cilia–Contractile vacuoles
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Protists Nutrition• Protists can be autotrophs or heterotrophs
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Fungi• The Kingdom
Fungi includes some of the most important organisms.
• By breaking down dead organic material, they continue the cycle of nutrients through ecosystems.
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Fungi• All fungi are eukaryotic
• They may be unicellular or multicellular
• All fungi have a cell wall, most
• Made of chitin
Unicellular (yeast)
Multicellular
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Fungi• Fungi can be
very helpful and delicious
• Many antibacterial drugs are derived from fungi (for example, Penicillin)
Penicillin
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Fungi• Fungi also causes a number of
plant and animal diseases:
• Athlete's Foot
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Fungi• Ringwor
m
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Fungi Locomotion• Fungi are
stationary
• They have root-like structures that they use for attachment
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Fungi Nutrition• All fungi are
heterotrophs• They absorb
nutrients from dead organic matter
• They are saprophytes
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There are 4 main types of Fungi (classified by how they reproduce)
1. Zygospore (Zygosporangia)• Bread molds
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There are 4 main types of Fungi2. Club (Basidiomycetes)
• Mushrooms & puffballs
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There are 4 main types of Fungi
3. Sac (Ascomycetes)• Yeasts
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There are 4 main types of Fungi4. Imperfect (Deuteromycetes)
• penicillin
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Plants• All plants
are multicellular autotrophs that have a cell wall made
• Of cellulose
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• 4 important plant groups are the:Mosses- (Bryophyte
s)
Ferns- Vascular, No seeds
(Tracheophytes)
Conifers- (Gymnosper
ms)
Flowering Plants- Vascular, Seeds
surrounded by fruit (Angiosperms)
Non-vascular
Vascular, Cone seeds
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• Nonvascular Plants Bryophytes
• Nonvascular plants are the simplest of all land dwelling plants.
• They lack an internal means for water transportation.
• They do not produce seeds or flowers. • They generally only reach a height of 1 to 2 centimeters, because they lack the woody tissue necessary for support.
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• Mosses
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• Liverworts & Hornworts
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• Vascular Plants Tracheophytes
• Vascular plants have water-carrying tissues (xylem) and sugar-carrying tissues (phloem) enabling the plants to evolve to a larger size.
• Some vascular plants do not produce seeds. For example, ferns.
• Some vascular plants produce cone seeds (gymnosperms), some produce seeds surrounded by fruit (angiosperms).
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• Ferns- seedless vascular
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• Conifers (cone bearing)– Gymnosperms
• Oldest vascular plants
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• Flowering plants– Angiosperms– Seeds
surrounded by a fruit.
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AnimaliaAll animals are multicellular heterotrophs that LACK a cell wall and are capable of movement at some point in their lives.
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Asymmetrical –
Asymmetrical animals (sponges) have no general body plan or axis of symmetry that divides the body into mirror-image halves.
Animals are divided into taxa by many variables.One variable is body symmetry
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Radial – Radially symmetrical animals (such as coral and jelly fish) have body parts organized about a central axis and tend to be cylindrical in shape.
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Bilateral – Bilaterally symmetrical animals (such as humans and fish) have only a single plane of symmetry that produces mirror halves.
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• Animals are also classified by their skeletal system
– Invertebrates have a hard external skeleton made of chitin known as an exoskeleton
– Vertebrates have a hard internal skeleton made of bone
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• Some important animal groups (phyla) are the:
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• Porifera: sponges
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• Cnidarians: Jellyfish, corals, and other stingers. . . Their stinger is called a nematocyst
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• Nematocyst
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• Mollusks– Octopi, squid
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• Mollusks– Clams, oysters
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• Mollusks– Snails, slugs
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• Platyhelminthes (flat worms)– Tapeworms & flukes
Human liver fluke
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• Annelids (segmented worms)– Worms & leeches
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• Echinoderms– Starfish, sea urchins, sea
cucumbers
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• Arthropods– Shell fish, arachnids & insects!
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• Chordates– The Chordata is the animal
phylum with which everyone is most familiar, since it includes humans and other vertebrates.
– Nerve cord with swelling at one end (brain)
– Internal skeleton– Elaborate organ systems
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• Chordates
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Fish• Aquatic, breathe with gills, ectothermic
(cold-blooded), have scales• Jawless fish- lack true teeth and jaws,
ex. Lampreys• Chondrichthyes- cartilage skeleton,
ex. Sharks and rays• Osteichthyes- bone skeleton
ex. Goldfish, salmon
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Amphibians & Reptiles• Amphibians- lay eggs in water and live in
water as larva (breath with gills), live on land as adults (breath with lungs), moist skin with no scales or claws, ectothermic
Ex. Frogs and salamanders• Reptiles- lay eggs on land, breath air with
lungs, have dry skin with scales, ectothermic Ex. Lizards, snakes, crocodiles, turtles
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Birds
• Have wings and feathers• Lay eggs with hard shells• Endothermic (warm-blooded)• 4-chambered heartEx. Eagle, chicken, ostrich
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Mammals• Breathe air with lungs• Endothermic (warm-blooded)• 4-chambered heart• Most bear live young• Nurse their young with milk• Have hair or furEx. Humans, tigers, dolphins, elephants, bats
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Viruses• Viruses do not share many of
the characteristics of living organisms.
HIV Virus
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Viruses• Viruses are not
cells.
• Basic viral structure consists of a nucleic acid (DNA or RNA) core surrounded by a protein coat.
DNA or RNA
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Viruses• Viruses
can reproduce only inside a living cell, the host cell.
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Viruses• The viral reproductive process
includes the following steps:1. A virus must insert its genetic
material into the host cell.2. The viral genetic material takes
control of the host cell and uses it to produce viruses.
3. The newly formed viruses are released from the host cell.
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Virus Vectors Viruses are transmitted through
vectors, such as:• Airborne
– Influenza– Common cold
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Virus Vectors• Contaminated food or water
– Hepatitis
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Virus Vectors• Infected animal bite
– West Nile– Rabies– Avian influenza (bird flu)– Ebola
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Virus Vectors• Sexual contact
– HIV– Herpes
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Virus Vectors• Contaminated blood products or
needles– HIV– Hepatitis
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Virus Treatment– Viruses cannot be treated with
antibiotics.
– There are some anti-viral drugs available.
– You generally have to wait for the virus to run its course and let your immune system fight it off.