Protist and Fungi - Winston-Salem/Forsyth County Schools
Protist and Fungi You will be able to explain how protists and fungi are similar and different than other common microscopic organisms. Prokaryote (Bacteria Cell) Can Not See Nucleus Much smaller than Eukaryote cells No visible organelles Contains DNA and RNA Eukaryote Cells: Protists and Fungi
Much larger Can See Nucleus (Brain of Cell) and organelles Complex cell can do more than Prokayote Has Specialized Functions in multi-cellular organisms
Contains DNA and RNA DNA mainly in nucleus Protist Characteristics Much larger than bacteria and viruses Animal-like though 1 makes its food by photosynthesis
Made up of eukaryote cells You can see nucleus and organelles (unlike prokaryote bacteria) Most unicellular but some are multi-cellular ( certain algae ) Only found in moist environments (water) 4 basic types of Protists Reproduce using Fission (cloning/asexual) and Fussion (conjucation/sexual) Nucleus Amoeba
Nucleus Psuedopodia Protist 1: Paramecium Eukaryote- can see nucleus and organelles Covered in cilia Found in Water Has 2 Nucleuses Feeds on other protists (algae and Euglena)
Contracting Vacuole Macronucleus Micronucleus Protist 2: Ameoba 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 3: Volvox and Algae
Eukaryote- can See Nucleus and organelles Green organelles called chloroplasts Autotrophic-makes own food Some live as colony (Volvox) Some deadly release toxin known as the Red Tide
Volvox (colony of algae cells) Red Tide Protist 4: Euglena
Eukaryote- can see Nucleus and organelles Is both Plant and Animal; makes and eats food Found in water Has long tail called flagellum Has eyespot to detect light (Stigma) Green color from chloroplasts 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 Algae Eukaryote organisms Not True Plants Can be unicelled or multicellular Produce up to 60% of the worlds oxygen
Slime Molds Slime mold is a broad term describing fungus-like organisms that use spores to reproduce Slime molds were formerly classified as fungi, but are no longer considered part of this kingdom. Their common name refers to
part of some of these organisms' life cycles where they can appear as gelatinous "slime". Mold/Fungi Characteristics Eukaryotes can see nucleus and organelles Have cell walls made of chitin (insect skeleton material)
Unable to make their own food so act as parasites: absorb food from other living/decaying things use spores to reproduce Like to grow in warm moist areas: ARCH ENEMY of BACTERIA Cell structure Size is anywhere from tiny unicellular to
large multicellular Reproduction Lightweight spores are surrounded by a protective covering and can be carried easily through the air or water to new sites Example Mushrooms Athletes Mold
foot Closing of Microlife How do we protect ourselves from these pathogens? Virus Bacteria Protists Mold/Fungi 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
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 Biotechnology 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
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