Multiple Choice
Which of the following statements is NOT part of the classical cell theory?
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1. Overview of Cell Biology
History of Cell Biology
Multiple Choice
Which statement is NOT part of the classical cell theory?
A
All cells arise from pre-existing cells.
B
All living organisms are composed of one or more cells.
C
All cells contain a nucleus that controls cellular activities.
D
The cell is the basic unit of structure and function in living things.
Verified step by step guidance1
Recall the three main tenets of the classical cell theory: (1) All living organisms are composed of one or more cells, (2) The cell is the basic unit of structure and function in living things, and (3) All cells arise from pre-existing cells.
Examine each statement in the problem and compare it to these three tenets to determine if it matches any of them.
Identify that the statement 'All cells contain a nucleus that controls cellular activities' is not part of the classical cell theory because it refers specifically to the presence of a nucleus, which is a feature of eukaryotic cells but not all cells (e.g., prokaryotes lack a nucleus).
Understand that the classical cell theory applies broadly to all cells, not just eukaryotic cells, so including a nucleus as a requirement is incorrect in this context.
Conclude that the statement about the nucleus is the one that is NOT part of the classical cell theory.
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