Biology 4-1
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| One early piece of evidence supporting the cell theory was the observation that | c. cells come from other cells.
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| The scientist who described cells as "many little boxes" was | a. Robert Hooke
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| Living and nonliving things are different in that only | c. living things are made of cells
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| Microscopes were used to study cells beginning in the | b. 17th century
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| The advantage of van Leeuwenhoek's microscopes was that | d. the lenses were ground very precisely
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| Which of the following was a major event in history of cell biology? a. cloning animals b. growing bone tissue for transplant c. discovery of cell parts d. all of the above | d. all of the above
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| A light microscope uses optical lenses to magnify objects by | a. bending light rays
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| State the three parts of the cell theory. | Matthias Schleiden concluded that all plants were composed of cells; Theodor Schwann concluded the same thing for animals; Rudolf Virchow noted that all cells come from other cells.
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| Why did it take 150 years for the cell theory to be developed after microscopes were invented? | Biologists began to organize information about cells into a unified understanding. The three observations were combined to form a basic theory about the cellular nature of life.
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| Why did Hooke's cork cells appear to be empty? | The cells were dead plant cells.
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| If you that a new organism had been discovered, what would you know about the organism without examining it in terms of cells? | it would have the characteristics of life
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| Approximately how many years elapsed between the time cells were discovered and the observation of cell parts in muscle cells? | 192 years
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| When was the third part of the cell theory added? What was the time interval between this event and the discovery of cells? | 1855; 190 years
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