Cell Theory Flashcards
What are the 4 tennets of the cell theory
• All life is composed of one or more cells
• Cell is the basic unit of life
• All cells come from pre-existing cells
• There is no life other than the life of cells
Explain the cell theory which states that The cell is the basic unit of life
The smallest functional unit of life is cell, discovered by Robert Hooke in 1665. A cell can independently perform all necessary activities to sustain life. Hence cell is the basic unit of life.
What is Cell Theory?
Cell Theory is a scientific theory that describes the properties of cells, which are the basic structural and functional units of all living organisms.
Who proposed the cell theory?
The Cell Theory was proposed by Matthias Schleiden and Theodor Schwann in the 19th century.
Who contributed to the Cell Theory by discovering the role of cells in spontaneous generation?
Rudolf Virchow contributed to the Cell Theory by proposing that cells only arise from pre-existing cells, refuting the idea of spontaneous generation.
What are the exceptions to Cell Theory?
Some exceptions to Cell Theory include viruses, which are not composed of cells but are still considered to be living organisms because they exhibit some characteristics of life.
