AP BIOLOGY

THE CELL

CELL THEORY

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
What did Schwann conclude?
A
All living things have cells
B
All plants have cells
C
The Mitochondria is the powerhouse of the cell
D
Cells come from pe-existing cells
Explanation: 

Detailed explanation-1: -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-2: -Eventually, he realized that all the plants he looked at were made of cells. Meanwhile, Theodor Schwann studied slides of animal cells. He concluded that all animals were also made of cells!

Detailed explanation-3: -In 1838, Matthias Schleiden, a German botanist, concluded that all plant tissues are composed of cells and that an embryonic plant arose from a single cell. He declared that the cell is the basic building block of all plant matter. This statement of Schleiden was the first generalizations concerning cells.

Detailed explanation-4: -In 1838, German scientist Matthias Schleiden concluded that all plants are made of cells. The next year Theodor Schwann, another German, concluded that all animals were also made of cells.

Detailed explanation-5: -Theodor Schwann was the one who proposed that all animals are made up of cells., and that cells are the basic unit of structure and function of animals. His contributions paved the way for the development of the cell theory.

There is 1 question to complete.