EVERYDAY SCIENCE

SCIENCE

CELL BIOLOGY

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
According to cell theory, all living things are made of cells that-
A
grow using energy from sunlight.
B
have cell organelles with specialized functions.
C
move using structures on their cell membranes.
D
come from other living cells.
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: -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-3: -The unified cell theory states that: all living things are composed of one or more cells; the cell is the basic unit of life; and new cells arise from existing cells. Rudolf Virchow later made important contributions to this theory.

Detailed explanation-4: -Based on this realization, Virchow proposed that living cells arise only from other living cells. The ideas of all three scientists-Schwann, Schleiden, and Virchow-led to cell theory, which is one of the fundamental theories unifying all of biology.

Detailed explanation-5: -The cell theory states that all biological organisms are composed of cells; cells are the unit of life and all life come from preexisting life.

There is 1 question to complete.