Podcast
Questions and Answers
What is a defining feature of connective tissue?
What is a defining feature of connective tissue?
- Absence of blood vessels
- Presence of membrane-bound organelles
- Presence of a nucleus
- Extracellular matrix (ECM) (correct)
Which statement correctly describes prokaryotic cells?
Which statement correctly describes prokaryotic cells?
- They are often multicellular organisms.
- They have a true nucleus.
- They contain multiple membrane-bound organelles.
- They possess a nucleoid region with circular DNA. (correct)
Which domains of life are prokaryotes classified under?
Which domains of life are prokaryotes classified under?
- Bacteria and Eukarya
- Archaea and Bacteria (correct)
- Archaea and Eukarya
- Bacteria and Fungi
What characteristic distinguishes Archaea from Bacteria?
What characteristic distinguishes Archaea from Bacteria?
What mode of cell division do Archaea use?
What mode of cell division do Archaea use?
Which feature do both Archaea and Eukaryotes share?
Which feature do both Archaea and Eukaryotes share?
What is true about the structural characteristics of Archaea?
What is true about the structural characteristics of Archaea?
Why are some Archaea considered extremophiles?
Why are some Archaea considered extremophiles?
Which statement incorrectly describes the classification of Archaea?
Which statement incorrectly describes the classification of Archaea?
Which of the following is not an example of connective tissue?
Which of the following is not an example of connective tissue?
What distinguishes the structure of prokaryotic cells from eukaryotic cells?
What distinguishes the structure of prokaryotic cells from eukaryotic cells?
Which characteristic is unique to Archaea compared to Bacteria?
Which characteristic is unique to Archaea compared to Bacteria?
Which process is primarily used by Archaea for cell division?
Which process is primarily used by Archaea for cell division?
In what way are Archaea and Eukaryotes hypothesized to be related?
In what way are Archaea and Eukaryotes hypothesized to be related?
Which of the following statements about Archaea and their energy sources is incorrect?
Which of the following statements about Archaea and their energy sources is incorrect?
Which feature of connective tissue primarily enables it to serve as a support structure?
Which feature of connective tissue primarily enables it to serve as a support structure?
Which statement about the domains of life is accurate?
Which statement about the domains of life is accurate?
Flashcards
Connective Tissue
Connective Tissue
A type of tissue that provides support and structure for the body, acting as a framework for epithelial cells to function. Examples include bone, cartilage, tendons, ligaments, adipose tissue, and blood.
Extracellular Matrix (ECM)
Extracellular Matrix (ECM)
The non-living material surrounding cells in connective tissue, composed of fibers and ground substance. It provides structural support, allows for communication between cells, and helps maintain tissue integrity.
Prokaryote
Prokaryote
A single-celled organism lacking a membrane-bound nucleus and other internal organelles. They are found in the domains Bacteria and Archaea.
Nucleoid Region
Nucleoid Region
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Archaea
Archaea
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Chemosynthesis
Chemosynthesis
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Binary Fission
Binary Fission
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What is the extracellular matrix (ECM)?
What is the extracellular matrix (ECM)?
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How do prokaryotes reproduce?
How do prokaryotes reproduce?
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What is Archaea?
What is Archaea?
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What is chemosynthesis?
What is chemosynthesis?
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What are extremophiles?
What are extremophiles?
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What is the nucleoid region?
What is the nucleoid region?
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What is connective tissue?
What is connective tissue?
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What are prokaryotes?
What are prokaryotes?
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What are the three domains of life?
What are the three domains of life?
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What are photosynthetic organisms?
What are photosynthetic organisms?
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Study Notes
Connective Tissue
- Supports and frames epithelial cells
- Provides structural support
- Examples include bone, cartilage, tendons, ligaments, adipose tissue, and blood
- Defined by the presence of an extracellular matrix (ECM)
Prokaryotic Cells
- Lack membrane-bound organelles
- Lack a nucleus; have a nucleoid region with circular DNA
- Organised into three domains: Archaea, Bacteria, and Eukarya
- Prokaryotes are only found in Archaea and Bacteria
- Initially, Archaea and Bacteria were grouped into Monera
- Archaea are single-celled; appear similar to bacteria but have more similar genes to eukaryotes
- Historically considered extremophiles (adapted to harsh environments)
- Can utilize alternative energy sources (e.g., inorganic compounds, sulfur and nitrogen)
- Some can survive in less extreme conditions (e.g., human body)
- Some are photosynthetic; others are chemosynthetic
- Hypothesised common ancestor with eukaryotes (e.g., start translation with methionine)
- Share similar RNA polymerases and DNA association with histones (though archaea only have one chromosome); both use similar amino acids in translation
- Reproduce via binary fission or budding; share similar structural features with bacteria
- Resistant to many antibiotics
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Description
This quiz covers essential topics in biology, focusing on connective tissues and prokaryotic cells. It explores the structural roles of connective tissues and distinctive characteristics of prokaryotic organisms, including their lack of membrane-bound organelles and the domains they belong to. Test your understanding of these foundational biological concepts!
