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Questions and Answers
Who were the scientists involved in the development of cell theory?
Who were the scientists involved in the development of cell theory?
Robert Hooke was the first scientist to observe living cells.
Robert Hooke was the first scientist to observe living cells.
False
What do we call the basic building blocks of life?
What do we call the basic building blocks of life?
cells
The first cells observed were _____ in thin slices of _____.
The first cells observed were _____ in thin slices of _____.
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What term did Hooke use to describe the dead cells he observed from cork?
What term did Hooke use to describe the dead cells he observed from cork?
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All cells come from preexisting cells is a statement in the cell theory.
All cells come from preexisting cells is a statement in the cell theory.
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Name one part of the cell that is responsible for making proteins.
Name one part of the cell that is responsible for making proteins.
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Virchow's statement 'All cells come from cells' translates to Latin as 'cellula e ________.'
Virchow's statement 'All cells come from cells' translates to Latin as 'cellula e ________.'
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Match the parts of the cell with their functions:
Match the parts of the cell with their functions:
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Which scientist is credited with observing small living organisms he called 'animalcules'?
Which scientist is credited with observing small living organisms he called 'animalcules'?
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Plant cells have a more flexible shape compared to animal cells.
Plant cells have a more flexible shape compared to animal cells.
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What is the control center of the cell called?
What is the control center of the cell called?
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Who were the scientists that contributed to the development of cell theory?
Who were the scientists that contributed to the development of cell theory?
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All organisms are composed of cells according to the Unified Cell Theory.
All organisms are composed of cells according to the Unified Cell Theory.
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What did Antonie van Leeuwenhoek observe and call tiny creatures?
What did Antonie van Leeuwenhoek observe and call tiny creatures?
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Rudolf Virchow proposed that cells come from __________.
Rudolf Virchow proposed that cells come from __________.
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Match the scientist with their contribution to cell theory:
Match the scientist with their contribution to cell theory:
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What is a characteristic of the cell as per the cell theory?
What is a characteristic of the cell as per the cell theory?
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Antonie van Leeuwenhoek was the first to develop the microscope.
Antonie van Leeuwenhoek was the first to develop the microscope.
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What was the main drawback of Schwann's proposal concerning cells?
What was the main drawback of Schwann's proposal concerning cells?
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Which scientist is associated with the discovery of cells?
Which scientist is associated with the discovery of cells?
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Virchow proposed that all cells come from preexisting cells.
Virchow proposed that all cells come from preexisting cells.
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Who used a drop of pond water to observe living cells?
Who used a drop of pond water to observe living cells?
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______ are the building blocks of life.
______ are the building blocks of life.
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Match the following scientists with their contributions to cell theory:
Match the following scientists with their contributions to cell theory:
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What term did Robert Hooke use to describe the dead cells he observed?
What term did Robert Hooke use to describe the dead cells he observed?
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Study Notes
Cell Theory Overview
- Cells are the fundamental building blocks of all living organisms.
- All organisms are made of cells.
- Cells are the basic units of life.
- Cells come from pre-existing cells.
- The cell theory was formulated in the mid-19th century.
Scientists and Their Contributions
- Robert Hooke observed dead cells in cork, coining the term "cellulae."
- Antonie van Leeuwenhoek observed living cells in pond water, calling them "animalcules." These included bacteria and protozoa.
- Schleiden and Schwann proposed a theory that all organisms are made of cells, and that cells are the basic units of life.
- Rudolf Virchow proposed that all cells come from pre-existing cells. This finalized the cell theory.
Cell Structure and Function
- Cell Membrane: Controls what enters and leaves the cell.
- Nucleus: Control center of the cell. Contains the genetic information.
- Chromosomes: Genetic information.
- Endoplasmic Reticulum (ER): Transport system in the cell.
- Ribosomes: Organelles that make proteins.
- Golgi Body: Packages proteins.
- Vacuole: Stores water and/or waste.
- Lysosome: Breaks down old cell parts.
- Mitochondria: Provide energy for the cell.
Animal vs. Plant Cells
- Animal cells are typically round or irregular.
- Plant cells are typically rectangular or cubic.
- Plant cells have a cell wall and chloroplasts.
- Animal cells have centrioles.
Microscopy
- The development of the microscope enabled early scientists to observe cells.
- Antonie van Leeuwenhoek was instrumental in improving microscopes to enable better views of cells.
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Description
Explore the fundamental principles of cell theory, which posits that all living organisms are composed of cells. Learn about the key scientists who contributed to our understanding of cell structure and function, including their discoveries and the implications of their work in biology.
