AP BIOLOGY

THE CELL

CELL THEORY

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
According to the cell theory, where do cells come from?
A
cells only come from other, pre-existing cells
B
cells are formed from the semi-conservative replication of DNA
C
cells can only arise form complex chemical environment found in organic solutions
D
cells come from other cells and, on rare occasions, from the spontaneous action of inorganic enzymes
Explanation: 

Detailed explanation-1: -Scientists once thought that life spontaneously arose from nonliving things. Thanks to experimentation and the invention of the microscope, it is now known that life comes from preexisting life and that cells come from preexisting cells.

Detailed explanation-2: -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-3: -All cells come from preexisting cells created through the process of cell division.

Detailed explanation-4: -All living things are made up of cells. Cells are the smallest units (or most basic building blocks) of life, and all cells come from preexisting cells through the process of cell division. Life cannot be created in a laboratory.

Detailed explanation-5: -New cells are created from existing cells through a process referred to as the cell cycle. One cell can make a copy of itself and form two new daughter cells.

There is 1 question to complete.