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H-DAWGS WILDLIFE REFUGE MICROBIOLOGY  As a basic science studies microscopic organisms such as viruses, bacteria, protists, parasites, and fungi. 

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Presentation on theme: "H-DAWGS WILDLIFE REFUGE MICROBIOLOGY  As a basic science studies microscopic organisms such as viruses, bacteria, protists, parasites, and fungi. "— Presentation transcript:

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2 H-DAWGS WILDLIFE REFUGE

3 MICROBIOLOGY  As a basic science studies microscopic organisms such as viruses, bacteria, protists, parasites, and fungi.  These are all single-celled organisms.  They infect the human body and cause disease. DISEASE- ANY INTERUPTION OF YOUR NORMAL BODY PROCESSES

4 VIRUSES  Are microscopic particles that INVADE and DESTROY healthy cells.  Are extremely small. Much smaller than bacteria.  ARE NOT ALIVE!!!! but do affect living things.  They need a host cell.

5 VIRUSES ARE SPREAD THROUGH  HUMAN CONTACT  WATER  TOUCHING INFECTED SURFACES  INSECT BITES VACCINES AND SOME ANTI VIRAL DRUGS CAN HELP CONTROL THE SPREAD OF VIRAL DISEASES

6 HOW VIRUSES REPRODUCE THE LYTIC CYCLE Is the cycle by which a virus 1. attaches itself to a host cell, 2. injects genetic material (DNA/RNA), 3.reproduces many times, 4.kills the cell 5.breaks out to start the cycle again.

7 VIRAL DISEASES VIRUSES CAN CAUSE MANY DISEASES IN HUMANS. EXAMPLES: HIV (AIDS), COLD, FLU (INFLUENZA), MONONUCLEOSIS Viruses cannot be cured with antibiotics. Viruses cannot be cured with antibiotics. There are some new anti-viral medications. VACCINES HELP PREVENT AND CONTROL THE SPREAD OF VIRUSES

8 ARE VIRUSES LIVING? They contain genetic material and protein. They cannot eat, grow, digest food, or use oxygen. They cannot function on their own. They must live inside of a living cell. A living thing that a virus or parasite lives in is called a host. Like living organisms, they reproduce

9 SHAPES OF VIRUSES Shapes: crystals, cylinders, spheres, spacecraft ( GO TO PAGE 619 IN TEXTBOOK AND DRAW THE FOUR SHAPES OF VIRUSES) ( GO TO PAGE 619 IN TEXTBOOK AND DRAW THE FOUR SHAPES OF VIRUSES)

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12 BACTERIA  Single-celled, no nucleus (PROKARYOTE), are the smallest LIVING organisms.  Are found everywhere: air, water, soil, inside of your body and on your skin.  They multiply very rapidly under favorable conditions and form colonies of millions of cells.

13 BACTERIA  Are classified based on their shape (3 types):

14 BACTERIAL DISEASES RABIES RABIES LYME DISEASE LYME DISEASE BACTERIAL MENINGITIS BACTERIAL MENINGITIS LEPROSY LEPROSY SINUS INFECTION SINUS INFECTION STREP THROAT STREP THROAT TUBERCULOSIS TUBERCULOSIS

15 FIGHTING DISEASES  ANTIBIOTICS FIGHT BACTERIAL DISEASES. (antibiotics can only kill living organisms)  VACCINES HELP TO PREVENT VIRAL DISEASES

16 ANTIBIOTIC RESISTANCE  Occurs when we overuse antibiotics.  Some bacteria will survive and produce new bacteria that resist antibiotics.  This makes treating bacterial diseases difficult when bacteria are not affected by the antibiotic

17 LYSOGENIC CYCLE Genes of a virus stay inactive Then they begin the lytic cycle


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