Podcast
Questions and Answers
Which characteristic primarily distinguishes microbes from other living organisms?
Which characteristic primarily distinguishes microbes from other living organisms?
- Their complex cellular structures.
- Their ability to reproduce sexually.
- Their extremely small size, requiring a microscope for observation. (correct)
- Their capacity to perform photosynthesis.
A researcher discovers a new type of bacteria that reproduces very quickly. Which reproduction method is this bacteria most likely using?
A researcher discovers a new type of bacteria that reproduces very quickly. Which reproduction method is this bacteria most likely using?
- Mitosis
- Binary fission (correct)
- Sexual reproduction
- Meiosis
A geneticist is studying a merozygote. What does the presence of this cell indicate?
A geneticist is studying a merozygote. What does the presence of this cell indicate?
- The cell is a bacterium undergoing photosynthesis.
- The cell is undergoing complete cell division.
- The cell is a virus replicating inside a host.
- The cell is a bacterial cell that is temporarily diploid for some genes. (correct)
If a new virus, similar to the T₂ phage, is discovered, what would be its most probable host?
If a new virus, similar to the T₂ phage, is discovered, what would be its most probable host?
In a microbiology lab, several types of bacteria are being observed. Which of these is a spherical bacterium?
In a microbiology lab, several types of bacteria are being observed. Which of these is a spherical bacterium?
Flashcards
Microorganism
Microorganism
Living beings that are very small and can only be seen with a microscope.
Microbiology
Microbiology
The branch of biology that studies microorganisms.
Bacteria
Bacteria
Single-celled microorganisms that can be beneficial or harmful.
Virus
Virus
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Binary fission
Binary fission
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Study Notes
Micro-Organisms/Microbes
- Microbes are organisms that are too small to be seen with the naked eye.
- Examples include viruses, bacteria, fungi, and protists.
- Microbiology is the branch of biology that studies microbes.
- Microbes play important roles in various processes, including decomposition, nutrient cycling, and disease.
- Some microbes are beneficial, while others can cause disease.
- Viruses, bacteria, and other microscopic organisms are covered in this chapter.
Types of Microbes
- Viruses are tiny particles that can only replicate inside living cells.
- Bacteria are single-celled organisms that can be beneficial or harmful.
- Bacteria have different shapes, including cocci (spherical), bacilli (rod-shaped), and spirilla (spiral-shaped).
- Fungi are eukaryotic organisms that can be single-celled or multicellular.
- Protists are eukaryotic microorganisms that are not plants, animals, or fungi.
Importance of Microbes
- Microbes play various roles in ecosystems.
- Involved in nutrient cycling.
- Some microbes cause disease, while others are beneficial.
- Examples of beneficial microbes include those that help in digestion, produce foods, and are used in biotechnology.
- Examples of harmful microbes include those that cause infections.
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Description
This chapter explores the world of microbes, organisms too small to see with the naked eye, including viruses, bacteria, fungi, and protists. Learn about their diverse roles in decomposition, nutrient cycling, and disease, and understand the differences between beneficial and harmful microbes.
