Podcast
Questions and Answers
What does modern cell theory state about the origin of cells?
What does modern cell theory state about the origin of cells?
- Cells can form through chemical reactions without existing cells.
- All cells arise from other existing cells. (correct)
- Cells can originate from non-cellular structures.
- All cells arise from spontaneous generation.
Which characteristic is true for both unicellular and multicellular organisms?
Which characteristic is true for both unicellular and multicellular organisms?
- All living organisms are composed of one or more cells. (correct)
- Both consist of cells that specialize in functions.
- Unicellular organisms cannot reproduce.
- Only multicellular organisms can perform all life functions.
Which feature distinguishes plant cells from animal cells?
Which feature distinguishes plant cells from animal cells?
- Plant cells contain a cell wall. (correct)
- Plant cells do not contain chloroplasts.
- Plant cells lack a nucleus.
- Plant cells have no specialized organelles.
Which of the following statements correctly describes the nucleus in most cells?
Which of the following statements correctly describes the nucleus in most cells?
What role do cells play in metabolism according to cell theory?
What role do cells play in metabolism according to cell theory?
Flashcards
Cell Theory
Cell Theory
All living things are made of one or more cells; the cell is the basic unit of life; new cells come from preexisting cells.
Unicellular Organism
Unicellular Organism
An organism composed of a single cell that carries out all life processes.
Plant Cell
Plant Cell
Eukaryotic cell with a cell wall, and specialized organelles.
Cell vs. Organism
Cell vs. Organism
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Modern Cell Theory
Modern Cell Theory
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