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Kingdoms (simple to complex) 1. Monerans 2. Protists 2. Protists 3. Fungus 3. Fungus 4. Plants 4. Plants 5.Animals 5.Animals
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Microorganisms...... are living things that require a microscope to see them, although...
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... some microorganismscolonize, …sometimes so big you can see them …sometimes so big you can see themwithout a microscope.
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Microorganisms are mainly represented in 2 Kingdoms: l Monerans- bacteria and blue- green bacteria l Protists- one - celled “beasties” that move
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Plus a really strange group of microorganisms called: l Viruses – Really common – Very, very small – Alive??? I feel sick!
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… and we will also study lFungus- plant-like decomposers that are mostly colonial
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Kingdoms (simple to complex) 1. Monerans 2. Protists 2. Protists 3. Fungus 3. Fungus 4. Plants 4. Plants 5.Animals 5.Animals
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Kingdom Monera: l Have no nucleus l Have chromosomes that carry genetic information. l Have a cell wall and cytoplasm Bacteria
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Moneran Groups(Phyla): 1. Blue-Green Bacteria: – single cell or chains; no nucleus but have chromosomes – Pollute lakes (“algae bloom”) – producers, have chlorophyll
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2. Bacteria- single cell or chain; decomposers; three shapes (round,rod, spiral); a few are harmful, some helpful, most neutral.
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Bacteria is bad because: l Causes many bacterial diseases lSpoils food
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Bacteria can be controlled by: lBoiling lDehydration lCold Temperatures lAntiseptics (cleaning chemicals) lAntibiotics (medicines)
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Bacteria is good because: l Is the world’s greatest decomposer- breaks down (rots) dead things l plus used in genetic engineering, making foods, softening leather, etc. Movie w questions
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Are Viruses Alive?? Not Alive l Can only reproduce in host cell l Cannot “live” by itself Alive l Reproduce l Invade host and cause harm l Have protein coat and DNA
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Viruses are very small and invade other cells. Human Skin Cell Bacteria Viruses
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All it takes is 1 virus to attach to the cell membrane. Receptor Molecule
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Virus invades host cell...... they reproduce themselves using the host’s energy.
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Eventually the host cell is destroyed...... the viruses spread out of the cell to invade neighboring cells, etc...
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Viruses cannot be killed by antibiotics because they are not alive, but...... your immune system produces antibodies – antibodies – proteins that destroy the virus.
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What is a Vaccine? Weakened form of the virus that builds up your antibodies
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Kingdoms (simple to complex) 1. Monerans 2. Protists 2. Protists 3. Fungus 3. Fungus 4. Plants 4. Plants 5.Animals 5.Animals
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Kingdom Protist...... are single celled, and have a nucleus. most are consumers, a few producers.
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l Sarcodines- Move by Move by oozing and flowing (very slow) Ex. Amoeba engulfing food. Protists are classified by how they move:
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l Ciliates- Move by little hairs called cilia. Ex. Paramecium
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l Flagellates- move by means of a whip-like tail called a flagellum. Ex. Euglena
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l Sporozoans- do not move but instead are parasites and move via their host. lEx. Plasmodium- causes malaria Parasite: lives in or on another organism and hurts it
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Microorganisms are important! Some are helpful, some are harmful!
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Kingdoms (simple to complex) 1. Monerans 2. Protists 2. Protists 3. Fungus 3. Fungus 4. Plants 4. Plants 5.Animals 5.Animals
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Kingdom Fungus...... are mostly colonial and decomposers although some...
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... are parasites and cause disease.
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Fungi reproduce asexually using spores released by 1. Club Fungus.
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Yeast Other fungi produce their spores in 2. Sac Fungus
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Other fungi release their spores at the ends of thin 3. Filament Fungus.
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However, the main idea is that Kingdom Fungus: l Is a colonial organism. l Is not a plant, but a decomposer. l Reproduces asexually by spores using clubs, sacs or filaments. l ex. Mold, mushrooms, mildew
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A special decomposer is the lichen...... an algae and fungus living together.
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Kingdoms (simple to complex) 1. Monerans 2. Protists 2. Protists 3. Fungus 3. Fungus 4. Plants 4. Plants 5.Animals 5.Animals
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