Multiple Choice
Which option best summarizes the three classic tenets of the original cell theory in the history of cell biology?
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1. Overview of Cell Biology
History of Cell Biology
Multiple Choice
In the history of cell biology, what was Rudolf Virchow's key contribution to cell theory?
A
He concluded that the nucleus is essential for cell division and heredity, based on studies of fertilization.
B
He developed the idea that all living organisms are composed of one or more cells as the basic unit of life.
C
He proposed that all cells arise from pre-existing cells ("Omnis cellula e cellula").
D
He first observed living cells and coined the term "cell" after viewing cork under a microscope.
Verified step by step guidance1
Understand the context of cell theory, which is a fundamental concept in cell biology describing the properties and origins of cells.
Recall the three main historical contributions to cell theory: (1) all living organisms are made of cells, (2) the cell is the basic unit of life, and (3) all cells arise from pre-existing cells.
Identify Rudolf Virchow's key contribution, which is the third point: he proposed that new cells are formed only by the division of existing cells, summarized by the phrase "Omnis cellula e cellula."
Distinguish Virchow's contribution from others: Robert Hooke coined the term "cell," and Schleiden and Schwann developed the idea that all organisms are composed of cells.
Summarize that Virchow's insight emphasized the continuity of life through cell division, which was a critical advancement in understanding cell biology.
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