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Questions and Answers
What is an infectious disease?
What is an infectious disease?
Any disease caused by a pathogen such as virus, bacteria, parasite, algae, protozoa, or fungus.
What is a pathogen?
What is a pathogen?
Tiny organisms that invade the body and make it sick.
What is a virus?
What is a virus?
Very small particles that take over the cells of living organisms.
What are host cells?
What are host cells?
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What is a vaccine?
What is a vaccine?
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What are bacteria?
What are bacteria?
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What are antibiotics?
What are antibiotics?
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What is a parasite?
What is a parasite?
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What is a host in the context of parasites?
What is a host in the context of parasites?
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What are fungi?
What are fungi?
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What are protists?
What are protists?
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What are algae?
What are algae?
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What are eukaryotes?
What are eukaryotes?
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What are prokaryotes?
What are prokaryotes?
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Study Notes
Infectious Disease
- Caused by pathogens like viruses, bacteria, parasites, algae, protozoa, or fungi.
- Pathogens are germs that invade the body and lead to illness.
Pathogen
- Microorganisms that can invade and cause disease in humans and other organisms.
- Include various entities such as viruses, bacteria, and parasites.
Virus
- Extremely small particles that can hijack host cells for replication.
- Require living host cells to reproduce and are responsible for numerous diseases.
Host Cell
- Cells of living organisms that provide an environment for viruses and other pathogens to multiply.
Vaccine
- A preventive measure designed to diminish the severity of viral diseases.
- Works by stimulating the immune response to recognize and fight off specific pathogens.
Bacteria
- Microscopic organisms found almost everywhere in the environment.
- Can be beneficial or harmful, with some responsible for diseases and others essential for biological processes.
Antibiotics
- Medications used to treat bacterial infections.
- Effective against bad bacteria by inhibiting their growth or killing them directly.
Parasite
- An organism that lives and feeds on a host organism.
- Can cause harm to the host while deriving nutrients from it.
Host
- The living organism that provides sustenance for a parasite.
- Critical for the life cycle and survival of parasitic organisms.
Fungi
- Organisms that decompose organic matter and absorb nutrients from their surroundings.
- Includes molds, yeasts, and mushrooms, playing a vital role in ecosystems.
Protist
- A diverse kingdom composed of eukaryotic microorganisms.
- Not classified as plants, animals, or fungi; includes algae and protozoa.
Algae
- Simple, photosynthetic organisms that can grow in water, soil, and on surfaces.
- Considered the smallest of all green plants; important for aquatic ecosystems.
Eukaryotes
- Cells that contain a defined nucleus and other organelles enclosed within membranes.
- Includes a vast array of organisms, such as plants, animals, fungi, and protists.
Prokaryotes
- Cells that lack a nucleus and membrane-bound organelles.
- Includes bacteria and archaea; generally smaller and simpler than eukaryotic cells.
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Description
Explore flashcards related to infectious diseases and their pathogens. This quiz provides essential definitions and concepts regarding viruses, bacteria, fungi, and parasites, highlighting their roles in causing diseases. Perfect for students seeking to reinforce their understanding of microbiology.
