Certify Teacher Practice Test 2025 - Free Practice Questions and Study Guide

Question: 1 / 400

Which of the following does not describe one of the principles of the Cell Theory?

All cells contain a nucleus.

The principle of the Cell Theory states that not all cells possess a nucleus. While it is true that many cells, especially in multicellular organisms, contain a nucleus, there are numerous types of cells, such as prokaryotic cells (like bacteria), that do not have a defined nucleus.

The other principles of the Cell Theory are well-established: living things are universally composed of one or more cells, cells are recognized as the fundamental units of structure and function in all living organisms, and new cells arise from existing living cells through processes such as cell division. Thus, the first choice accurately misrepresents a fundamental aspect of the Cell Theory by suggesting that the presence of a nucleus is absolute for all cells.

Get further explanation with Examzify DeepDiveBeta

All living things are made up of cells.

Cells are the basic units of structure and function in living things.

Living cells originate from other living cells.

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