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Questions and Answers
What is a defining characteristic of animal cells?
What is a defining characteristic of animal cells?
- Presence of chloroplasts
- Rectangular shape
- Eukaryotic with a membrane-bound nucleus (correct)
- Ability to perform photosynthesis
Which component of plant cells is primarily responsible for photosynthesis?
Which component of plant cells is primarily responsible for photosynthesis?
- Chloroplasts (correct)
- Nucleus
- Cell membrane
- Mitochondria
Which of the following statements about plant and animal cells is true?
Which of the following statements about plant and animal cells is true?
- Animal cells are generally larger than plant cells
- Plant cells have a rectangular shape, while animal cells have irregular shapes (correct)
- Animal cells perform photosynthesis
- Both plant and animal cells contain chloroplasts
What was the magnification power of Antonie van Leeuwenhoek's microscopes?
What was the magnification power of Antonie van Leeuwenhoek's microscopes?
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What is the major function of plant cells?
What is the major function of plant cells?
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Study Notes
Animal Cells
- Animal cells are eukaryotic cells that possess a membrane-bound nucleus.
- They vary in size from a few microns to a few millimeters.
- Their shapes can differ, ranging from flat to oval or rod-shaped.
- They are generally smaller than plant cells.
Plant Cells
- Plant cells are eukaryotic cells that differ fundamentally from animal cells in several ways.
- They are rectangular in shape and larger than animal cells.
- They are the fundamental building blocks of plants.
- Their primary function is photosynthesis, which occurs in the chloroplasts.
- Photosynthesis uses sunlight, carbon dioxide, and water to create food for the plant.
Antonie van Leeuwenhoek's Microscopes
- Antonie van Leeuwenhoek, a Dutch scientist, crafted microscopes by hand using secret techniques.
- His microscopes magnified between 50 and 300 times.
- His microscopes allowed him to observe sperm for the first time in history.
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