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Questions and Answers
What is the fundamental feature of cells that enables them to perform all activities required for life?
What is the fundamental feature of cells that enables them to perform all activities required for life?
- Their ability to divide (correct)
- Their ability to photosynthesize
- Their ability to respond to stimuli
- Their ability to maintain homeostasis
Which of the following is NOT a characteristic shared by all cells?
Which of the following is NOT a characteristic shared by all cells?
- Use of DNA as their genetic information
- Ability to replicate themselves
- Enclosure by a membrane
- Ability to perform photosynthesis (correct)
What is the primary function of cell division in multicellular organisms?
What is the primary function of cell division in multicellular organisms?
- To support reproduction, growth, and repair (correct)
- To increase the surface area of the cell
- To allow for the exchange of genetic information
- To enable the organism to respond to environmental stimuli
What is the main function of the cell membrane?
What is the main function of the cell membrane?
What is the fundamental unit of organization that can perform all activities required for life?
What is the fundamental unit of organization that can perform all activities required for life?
What is the definition of a cell in a living organism?
What is the definition of a cell in a living organism?
Which of the following types of cells is characterized by the absence of a true nucleus?
Which of the following types of cells is characterized by the absence of a true nucleus?
What is the primary function of cells in a living organism?
What is the primary function of cells in a living organism?
What is the key characteristic that distinguishes cells from other structural units in a living organism?
What is the key characteristic that distinguishes cells from other structural units in a living organism?
What is the term for the process by which cells become specialized to perform specific functions?
What is the term for the process by which cells become specialized to perform specific functions?
Which of the following is a characteristic shared by both eukaryotic and prokaryotic cells?
Which of the following is a characteristic shared by both eukaryotic and prokaryotic cells?
What is the main difference between eukaryotic and prokaryotic cells in terms of their ribosomes?
What is the main difference between eukaryotic and prokaryotic cells in terms of their ribosomes?
Which of the following organelles is absent in prokaryotic cells?
Which of the following organelles is absent in prokaryotic cells?
What is the primary characteristic that distinguishes eukaryotic cells from prokaryotic cells?
What is the primary characteristic that distinguishes eukaryotic cells from prokaryotic cells?
Which of the following is an example of a multicellular eukaryotic organism?
Which of the following is an example of a multicellular eukaryotic organism?
What is the characteristic of the number of chromosomes in prokaryotic cells?
What is the characteristic of the number of chromosomes in prokaryotic cells?
Which of the following is an example of a prokaryotic organism?
Which of the following is an example of a prokaryotic organism?
What is the primary function of ribosomes in both eukaryotic and prokaryotic cells?
What is the primary function of ribosomes in both eukaryotic and prokaryotic cells?
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Study Notes
Cell Structure and Function
- Cells are the basic units of structure and function in an organism.
- The cell is the lowest level of organization that can perform all activities required for life.
- All cells are enclosed by a membrane and use DNA as their genetic information.
Cell Types
- There are two basic types of cells: prokaryotic cells and eukaryotic cells.
Similarities between Prokaryotic and Eukaryotic Cells
- Both types of cells have DNA as their genetic material.
- Both types of cells have ribosomes.
Differences between Prokaryotic and Eukaryotic Cells
- Eukaryotic cells have a nucleus, while prokaryotic cells do not.
- Eukaryotic cells have a membrane-bound nucleus, while prokaryotic cells do not.
- Eukaryotic cells are usually multicellular, while prokaryotic cells are usually unicellular.
- Eukaryotic cells have organelles such as mitochondria and Golgi apparatus, while prokaryotic cells do not.
- Eukaryotic cells have larger ribosomes, while prokaryotic cells have smaller ribosomes.
- Eukaryotic cells have more than one chromosome, while prokaryotic cells have one, but not a true chromosome.
- Examples of eukaryotic cells include animals and plants, while examples of prokaryotic cells include bacteria and archaea.
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