University of Central Florida (UCF) BSC1005 Biological Principles Practice Exam 1

The cell theory is a fundamental concept in biology that explains the properties and functions of cells. It includes three primary components:

1. All living organisms are composed of cells, indicating that cells are the building blocks of life.

2. The cell is the basic unit of life, meaning that the functions of life are carried out at the cellular level and that all life processes occur within cells.

3. All cells arise from pre-existing cells, which emphasizes that new cells are produced from existing ones, maintaining continuity of life.

The statement that all cells can arise from non-living matter does not align with the established tenets of cell theory. The theory firmly asserts that only existing cells can give rise to new cells, thereby contradicting the idea that cells can spontaneously arise from non-living materials. This understanding is fundamental in distinguishing living organisms from inanimate matter.

By adhering to these principles, the theory has shaped our comprehension of biology, emphasizing the significance of cells in all living organisms.