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Questions and Answers
Which of the following is NOT a characteristic of prokaryotic organisms?
Which of the following is NOT a characteristic of prokaryotic organisms?
What is the primary structural component of the cell wall in prokaryotic organisms?
What is the primary structural component of the cell wall in prokaryotic organisms?
What shape is NOT associated with bacterial organisms?
What shape is NOT associated with bacterial organisms?
In the binomial naming system, what does the first word represent?
In the binomial naming system, what does the first word represent?
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Which of the following features may be present in some prokaryotic organisms?
Which of the following features may be present in some prokaryotic organisms?
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What is a common characteristic of prokaryotic organisms regarding their genetic material?
What is a common characteristic of prokaryotic organisms regarding their genetic material?
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Which of the following best describes the structure of prokaryotic ribosomes?
Which of the following best describes the structure of prokaryotic ribosomes?
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What is typically found in the cytoplasm of prokaryotic organisms?
What is typically found in the cytoplasm of prokaryotic organisms?
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What component contributes to the protective feature of many prokaryotic organisms?
What component contributes to the protective feature of many prokaryotic organisms?
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Which of the following is NOT part of the naming system used in binomial nomenclature?
Which of the following is NOT part of the naming system used in binomial nomenclature?
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Which shape is NOT associated with bacterial organisms?
Which shape is NOT associated with bacterial organisms?
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What is one possible feature of some prokaryotic organisms that allows for movement?
What is one possible feature of some prokaryotic organisms that allows for movement?
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Study Notes
Characteristics of Prokaryotic Organisms
- Lack a nucleus and organelles except ribosomes, distinguishing them from eukaryotic organisms.
- Ribosomes are smaller in size compared to those found in eukaryotes.
- Contain circular DNA that is not associated with proteins.
- May possess plasmids, which are additional circular DNA molecules.
- Often covered with a protective slime capsule.
- Surrounded by a cell wall made of murein, a polymer of proteins and carbohydrates.
- Cytoplasm holds stored food in the forms of glycogen and lipids.
- Some prokaryotes have flagella (singular: flagellum), which aid in locomotion.
- Certain types can contain chlorophyll, enabling them to perform photosynthesis.
Shapes of Bacteria
- Bacteria can be classified into three main shapes:
- Spiral
- Spherical
- Rod-shaped
Binomial Nomenclature
- The system for naming species using a two-word format.
- The first word represents the genus and is capitalized; the second word denotes the species and begins with a lowercase letter.
- Names are written in Latin, either in italics or underlined.
- Example: Humans are named Homo sapiens, where "Homo" is the genus and "sapiens" is the species.
Characteristics of Prokaryotic Organisms
- Lack a nucleus and organelles except ribosomes, distinguishing them from eukaryotic organisms.
- Ribosomes are smaller in size compared to those found in eukaryotes.
- Contain circular DNA that is not associated with proteins.
- May possess plasmids, which are additional circular DNA molecules.
- Often covered with a protective slime capsule.
- Surrounded by a cell wall made of murein, a polymer of proteins and carbohydrates.
- Cytoplasm holds stored food in the forms of glycogen and lipids.
- Some prokaryotes have flagella (singular: flagellum), which aid in locomotion.
- Certain types can contain chlorophyll, enabling them to perform photosynthesis.
Shapes of Bacteria
- Bacteria can be classified into three main shapes:
- Spiral
- Spherical
- Rod-shaped
Binomial Nomenclature
- The system for naming species using a two-word format.
- The first word represents the genus and is capitalized; the second word denotes the species and begins with a lowercase letter.
- Names are written in Latin, either in italics or underlined.
- Example: Humans are named Homo sapiens, where "Homo" is the genus and "sapiens" is the species.
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Description
This quiz explores the main characteristics of prokaryotic organisms, including their cellular structure, DNA composition, and protective features. Learn about the unique characteristics that distinguish prokaryotes from other life forms, such as their lack of a nucleus and specialized organelles.
