Transcript Protist and Fungi

The Protists
You will be able to explain how
protists are similar and different
than other the pathogens.
Review: Prokaryote (Bacteria Cell)
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Can Not See Nucleus
Much smaller than
Eukaryote cells
No visible organelles
Contains DNA and
RNA
Eukaryote Cells: Protists and Fungi
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Much larger
Can See Nucleus (Brain
of Cell) and organelles
Complex cell can do
more than Prokayotes
Has Specialized
Functions in multi-cellular
organisms
Contains DNA and RNA
DNA mainly in nucleus
Protist Characteristics
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Much larger than bacteria and
viruses
Most Heterotrophs- need food
source
Made up of eukaryote cells—
You can see nucleus and
organelles (unlike prokaryote
bacteria)
Most unicellular but some are
multi-cellular
Only found in moist
environments (water)
Reproduce using Fission
(cloning/asexual) and Fussion
(conjucation/sexual)
Nucleus
Amoeba
Psuedopodia
Nucleus
Protist Pathogens: Ameoba
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Eukaryote- can See
organelles and Nucleus
Move with Pseudopodia
Found in bottom in the
sediment of most water
systems
Engulfs food by
surrounding it
Causes diseases such as
malaria, and dysentery
and rare form eats brain
of humans!
Pseudopodia
Nucleus
Protist Pathogens: Trypanosomes
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Eukaryote- can See
Nucleus and
organelles
Insect borne (Vectors)
pathogens
Feed off of Human
Blood Cells or
Nervous Cells
Most Fatal
Red Tide
Protist Close up
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Eukaryote- can see
Nucleus and
organelles
Trypansomes have
long tail called
flagellum
Ameobas do Not
have Flagellum
Protist or Protozoans: 4 Basic
Traits
Most Animal like
 Lack cell walls and most heterotrophic
 Move with cilia, pseudopodia (little feet) or
flagellum
 Found mainly in water
 Cause Diseases such as Malaria and
Dysentery
 Malaria video
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Closing of Microlife
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How do we protect
ourselves from these
pathogens?
Virus
Bacteria
Protists
Mold/Fungi
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What type of
medicines work
against them?
Vaccines
Antibiotics
Chlorine in water
Antifungal medicines
What makes pathogens
dangerous?
Fact One:
 How easily it spreads from organism to
organism (person to person)
 Fact Two:
 How rapidly can the Pathogen reproduce
itself
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Preventing Spread of Disease
Active Immunity- your body is producing
antibodies to fight it off. (Vaccine or prior
exposure)
 Passive Immunity- you are injected with
antibodies from another organism to fight it
off; allows time for your body to find and
make antibodies before you become ill
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Biotechnology
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Biotechnology- use of living organisms to
produce products for human use.
Products can be such as genetically altered food
such as milk, corn, and tomatoes
Piggybacked viruses, using a harmless virus to
produce capsid of a more harmful one. Idea is
that harmless virus will makes “protein coat” of
harmful one so that your body could make
antibodies for the “bad one”