CELL STRUCTURES AND FUNCTION
CELL STRUCTURE
|
Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
|
|
|
All cells contain nucleus.
|
|
|
DNA is a genetic material found in all cells.
|
|
|
New cells arise from pre-existing cells.
|
|
|
Eukaryotic cells evolved from prokaryotic cells.
|
Detailed explanation-1: -The modern cell theory, one of the fundamental generalizations of biology, holds that: All organisms are composed of one or more cells.
Detailed explanation-2: -The third part of the cell theory definition states that all cells come from preexisting cells. This means that cells don’t just appear out of thin air (known as “spontaneous generation”). New cells are always made from current cells.
Detailed explanation-3: -Cells arise from the pre-existing cells is the second postulate of cell theory. Rudolf Virchow proposed this.
Detailed explanation-4: -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.