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 Tâ‚‚ phage, is discovered, what would be its most probable host?
If a new virus, similar to the Tâ‚‚ 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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