Multiple Choice
In the history of cell biology, which cell type was first observed and described using a light microscope by Robert Hooke in 1665?
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1. Overview of Cell Biology
History of Cell Biology
Multiple Choice
Which statement is part of the classical cell theory?
A
All living organisms are composed of one or more cells.
B
Inheritance is carried exclusively by proteins rather than nucleic acids.
C
Cells arise spontaneously from nonliving matter under the right conditions.
D
All cells contain a membrane-bound nucleus.
Verified step by step guidance1
Recall the classical cell theory, which is a fundamental concept in cell biology developed in the 19th century by scientists such as Schleiden, Schwann, and Virchow.
Identify 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 organization in organisms, and (3) All cells arise from pre-existing cells.
Evaluate each statement in the problem against these tenets: For example, 'All living organisms are composed of one or more cells' aligns directly with the first tenet.
Recognize that statements about inheritance being carried exclusively by proteins or cells arising spontaneously from nonliving matter contradict modern understanding and are not part of the classical cell theory.
Note that the statement 'All cells contain a membrane-bound nucleus' is incorrect because prokaryotic cells lack a nucleus, so this is not part of the classical cell theory.
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