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Questions and Answers
What is the fundamental unit of life?
What is the fundamental unit of life?
- Organism
- Tissue
- Organ
- Cell (correct)
What is the difference between unicellular and multicellular organisms?
What is the difference between unicellular and multicellular organisms?
- Unicellular organisms consist of a large number of cells
- Multicellular organisms perform all activities with a single cell
- Unicellular organisms have specialized cells
- Multicellular organisms have a division of labour within cells (correct)
What is the meaning of the Latin word 'cellula'?
What is the meaning of the Latin word 'cellula'?
- A room with no doors
- A large room
- A room with no windows
- A little room (correct)
Who discovered cells and when?
Who discovered cells and when?
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What did Anton von Leeuwenhoek discover using his improved microscope?
What did Anton von Leeuwenhoek discover using his improved microscope?
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Study Notes
Cellular Basics
- The fundamental unit of life is the cell, which is the basic structural and functional unit of living organisms.
Cellular Organization
- Unicellular organisms are single-celled, while multicellular organisms are composed of multiple cells that work together to perform various functions.
Etymology of Cell
- The Latin word 'cellula' means 'little room', which is the origin of the term 'cell'.
Discovery of Cells
- Cells were discovered by Robert Hooke in 1665, who observed and described cells in cork tissue.
Microscopic Discovery
- Anton von Leeuwenhoek, a Dutch tradesman and amateur scientist, discovered microorganisms such as bacteria, yeast, and protozoa using his improved microscope in the 17th century.
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