AP BIOLOGY

THE CELL

CELL THEORY

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
Which three statements are part of cell theory?
A
All living things are composed of cells, Cells are the smallest units of living things that can perform the processes necessary for life, and Living cells only come from other living cells.
B
All living things are composed of cells, Atoms are composed of cells, and Living cells only come from other living cells.
C
All living things are composed of cells, Cells are the smallest units of living things, and The basic components of life consist of a nucleus, cell membrane and mitochondria.
D
All living things are composed of cells, Atoms are composed of cells, and The basic components of life consist of a nucleus, cell membrane and mitochondria.
Explanation: 

Detailed explanation-1: -The generally accepted parts of modern cell theory include: All known living things are made up of one or more cells. All living cells arise from pre-existing cells by division. The cell is the fundamental unit of structure and function in all living organisms.

Detailed explanation-2: -The generally accepted portions of the modern Cell Theory are as follows: The cell is the fundamental unit of structure and function in living things. All organisms are made up of one or more cells. Cells arise from other cells through cellular division.

Detailed explanation-3: -Cell Theory states that cells are the basic units of all living organisms. But, the cell theory failed to explain how new cells arise. In 1855, Rudolf Virchow, a German physiologist stated in German ‘Omnis cellula e cellula’ which means that new cells come from already existing cells.

Detailed explanation-4: -In biology, the smallest unit that can live on its own and that makes up all living organisms and the tissues of the body. A cell has three main parts: the cell membrane, the nucleus, and the cytoplasm.

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