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Questions and Answers
What is the basic structural and functional unit of all forms of life?
What is the basic structural and functional unit of all forms of life?
- Cell (correct)
- Tissue
- Organ
- Organism
What is the term for organisms consisting of a single cell, such as bacteria?
What is the term for organisms consisting of a single cell, such as bacteria?
- Megacells
- Microorganisms (correct)
- Multicellular
- Macroorganisms
What is the approximate size range of most plant and animal cells?
What is the approximate size range of most plant and animal cells?
- 1-100 nanometers
- 1-100 centimeters
- 1-100 millimeters
- 1-100 micrometers (correct)
What technique provides a much higher resolution, showing greatly detailed cell structure?
What technique provides a much higher resolution, showing greatly detailed cell structure?
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What are the macromolecules found within a cell?
What are the macromolecules found within a cell?
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Study Notes
Cell Structure and Function
- The cell is the basic structural and functional unit of all forms of life.
- Unicellular organisms, such as bacteria, are composed of a single cell.
Cell Size
- Most plant and animal cells range in size from 1-100 μm (micrometers).
Cell Imaging Techniques
- Electron microscopy provides a much higher resolution, showing greatly detailed cell structure.
Cellular Components
- Macromolecules found within a cell include:
- Carbohydrates
- Proteins
- Nucleic acids (DNA and RNA)
- Lipids
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