Questions and Answers
Who is known as the father of microscopy and microbiology?
Anton Van Leeuwenhoek
What did Zacharias Janssen invent?
Robert Hooke coined the term 'cells' while observing plant tissues.
True
What year did Matthias Jakob Schleiden propose that all plants are made up of cells?
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Who believed that 'where a cell exists, there must have been pre-existing cells'?
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The first compound microscope was invented around ______.
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What is one of the key principles of cell theory?
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Match the following scientists with their contributions:
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Who is known as the father of microscopy and microbiology?
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What term did Anton Van Leeuwenhoek invent?
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In what year did Anton Van Leeuwenhoek discover bacteria?
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Who first invented the compound microscope?
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What is the significance of Robert Hooke's work?
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Match the scientist with their contribution:
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The statement 'omnis cellula e cellula' translates to _____.
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All living things are composed of one or more cells.
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Study Notes
Cell Theory Timeline
- Zacharias Janssen: Dutch spectacle-maker, son of Hans Janssen, credited with inventing the compound microscope around 1590 using small lenses.
- Hans Janssen: Father of Zacharias, also associated with the invention of the compound microscope, both recognized for advancements in optical capabilities.
- Robert Hooke: Coined the term "cells" in 1665 while observing cork through a light microscope; published findings in Micrographia.
- Anton Van Leeuwenhoek: In 1674, observed microorganisms in pond water; later discovered bacteria in 1683, and referred to them as "animalcules."
- Matthias Jakob Schleiden: German botanist in 1838; proposed that all plants are composed of cells.
- Theodore Schwann: German zoologist in 1839; stated all animals are made of cells, with Schwann cells in neurons named after him.
- Rudolf Virchow: German physician in 1855; studied cell reproduction and asserted "omne cellula e cellula," meaning all cells arise from pre-existing cells.
Summary of Cell Theory
- Composed of Cells: All living organisms consist of one or more cells.
- Basic Unit of Life: Cells are the fundamental unit of life in all organisms.
- Cell Replication: Cells originate from existing cells, emphasizing the continuity of life.
Parts of a Microscope
- Parts Location: The microscope's components, including the stage, enhance observation, with controls typically being round dials located below the stage.
Cell Theory Timeline
- Zacharias Janssen: Dutch spectacle-maker, son of Hans Janssen, credited with inventing the compound microscope around 1590 using small lenses.
- Hans Janssen: Father of Zacharias, also associated with the invention of the compound microscope, both recognized for advancements in optical capabilities.
- Robert Hooke: Coined the term "cells" in 1665 while observing cork through a light microscope; published findings in Micrographia.
- Anton Van Leeuwenhoek: In 1674, observed microorganisms in pond water; later discovered bacteria in 1683, and referred to them as "animalcules."
- Matthias Jakob Schleiden: German botanist in 1838; proposed that all plants are composed of cells.
- Theodore Schwann: German zoologist in 1839; stated all animals are made of cells, with Schwann cells in neurons named after him.
- Rudolf Virchow: German physician in 1855; studied cell reproduction and asserted "omne cellula e cellula," meaning all cells arise from pre-existing cells.
Summary of Cell Theory
- Composed of Cells: All living organisms consist of one or more cells.
- Basic Unit of Life: Cells are the fundamental unit of life in all organisms.
- Cell Replication: Cells originate from existing cells, emphasizing the continuity of life.
Parts of a Microscope
- Parts Location: The microscope's components, including the stage, enhance observation, with controls typically being round dials located below the stage.
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Description
Prepare for your General Biology Q1 exam with this comprehensive reviewer. Focus on key topics, including the contributions of Anton Van Leeuwenhoek and the history of biological discovery. Test your knowledge and ensure you are ready for the upcoming assessments.
