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Questions and Answers
What is the study of fungi called?
What is the study of fungi called?
Which branch of microbiology studies the relationship between microbes and their environment?
Which branch of microbiology studies the relationship between microbes and their environment?
What are the unicellular organisms that are neither plants nor animals categorized as?
What are the unicellular organisms that are neither plants nor animals categorized as?
Which of the following is NOT a branch of applied microbiology?
Which of the following is NOT a branch of applied microbiology?
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What is the primary focus of immunology?
What is the primary focus of immunology?
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Which of the following kingdoms includes bacteria?
Which of the following kingdoms includes bacteria?
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What is biotechnology primarily concerned with?
What is biotechnology primarily concerned with?
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Which of the following groups of microbes is characterized by the absence of a nuclear membrane?
Which of the following groups of microbes is characterized by the absence of a nuclear membrane?
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What is a characteristic of prokaryotic cells?
What is a characteristic of prokaryotic cells?
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Which of the following statements is true regarding eukaryotic ribosomes?
Which of the following statements is true regarding eukaryotic ribosomes?
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In which cellular location does transcription occur in eukaryotic cells?
In which cellular location does transcription occur in eukaryotic cells?
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How do prokaryotes primarily divide?
How do prokaryotes primarily divide?
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Which molecule is typically absent in prokaryotic cells but present in eukaryotic cells?
Which molecule is typically absent in prokaryotic cells but present in eukaryotic cells?
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What type of genetic material do eukaryotic cells possess compared to prokaryotic cells?
What type of genetic material do eukaryotic cells possess compared to prokaryotic cells?
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Which of the following structures is present in eukaryotic cells but absent in prokaryotic cells?
Which of the following structures is present in eukaryotic cells but absent in prokaryotic cells?
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What type of gene copy do eukaryotes possess for a particular gene?
What type of gene copy do eukaryotes possess for a particular gene?
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Study Notes
Introduction to Microbiology
- Microbiology is the study of microbes (small living organisms)
- Microbes include bacteria, archaea, fungi, algae, viruses, and protozoa
- Microbiology encompasses applied (practical uses) and pure (basic research) microbiology
Branches of Applied Microbiology
- Medical Microbiology
- Veterinary Microbiology
- Food Microbiology
- Water (or Aquatic) Microbiology
Branches of Pure Microbiology
- Bacteriology: The study of bacteria
- General Bacteriology: Examines the biology of bacteria
- Systematic Bacteriology: Classifies bacteria, studies their properties, and the relationships between different types (diversity and genetic relationships)
- Mycology: The study of fungi
- Phycology: The study of algae
- Virology: The study of viruses
- Immunology: Focuses on the body's immune response to microbes
- Microbial Physiology: Examines the structure, metabolism, and growth of microbes
- Microbial Ecology: Studies the interactions between microbes and their environment
- Microbial Genetics: Focus on the genetics of microbes (genes and their functions)
Importance of Microbiology
- Maintaining human health
- Industrial applications (e.g., food production, biotechnology)
- Nature balance (decomposition of dead matter)
- Environmental roles (e.g., bioremediation)
- Improving animal (especially fish) production
Taxonomy of Microbes
- Living organisms are categorized into kingdoms based on cell structure and energy systems
- Five kingdoms include: Animals, Plants, Fungi, Protista, and Monera (Bacteria)
- Two main classifications (based on cell structure): Prokaryotes and Eukaryotes
Prokaryotes
- Small, simple cells without a nucleus or membrane-bound organelles
- Have a single circular chromosome of DNA
- DNA is located in the cytoplasm in a region called the nucleoid
- Genetic material can also include plasmids (small circular DNA molecules)
- Lack histones
- Cell division = binary fission
- Ribosomes are 70S
- Respiration = plasma membrane
- Cell wall present
- Some have capsules, flagella, pili etc.
Eukaryotes
- Larger, complex cells with a nucleus and membrane-bound organelles
- Multiple linear chromosomes
- DNA is contained within the nucleus
- Cell division through mitosis and meiosis
- Ribosomes are 80S
- Cell wall is present in some eukaryotes
- Respiration in mitochondria
- Includes fungi, algae, protozoa, animals, and plants
Prokaryotic and Eukaryotic Cell Comparison (Diagram)
- Clear visual comparison of the structures of prokaryotic and eukaryotic cells is available. Showing the differences in their organelles and structures.
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Description
This quiz provides an overview of microbiology, including the study of various microorganisms such as bacteria, fungi, and viruses. It covers both the practical applications and theoretical foundations of the field. Test your knowledge on the branches of applied and pure microbiology.