AP BIOLOGY

THE CELL

CELL THEORY

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
In the 1830s, Theodor Schwann showed that the mature tissues of animals were traceable to embryonic cells. For which of the following statements of cell theory does this provide evidence?
A
All living things are made from cells.
B
Cells are the basic units of structure and function in an organism.
C
All cells come from preexisting cells.
D
Each cell has a specific design and purpose.
Explanation: 

Detailed explanation-1: -In the 1830s, Theodor Schwann showed that the mature tissues of animals were traceable to embryonic cells. For which of the following statements of cell theory does this provide evidence? All living things are made from cells.

Detailed explanation-2: -Schwann concluded three things that became vital components of the cell theory. First, Schwann concluded that both plants and animals were composed of cells. Second, these cells have independent lives. Third, these independent lives are subject to the organism’s life.

Detailed explanation-3: -The classical cell theory was proposed by Theodor Schwann in 1839. There are three parts to this theory. The first part states that all organisms are made of cells. The second part states that cells are the basic units of life.

Detailed explanation-4: -Cell theory, as formulated by Theodor Schwann in 1839, implied that this relationship was a specific and lawful one, i.e. that germs of a certain kind, all else being equal, would produce adult organisms of the same kind, and vice versa.

Detailed explanation-5: -The three tenets of the cell theory are: All living organisms are composed of one or more cells. The cell is the basic unit of structure and organization in organisms. Cells arise from pre-existing cells.

There is 1 question to complete.