STRUCTURAL ORGANISTION OF PLANTS AND ANIMALS
STRUCTURAL ORGANISATION IN ANIMALS
|
Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
|
|
|
All cells contain a nucleus.
|
|
|
All cells come from other living cells.
|
|
|
All living organisms are made of one or more cells
|
|
|
Cells are the basic unit of structure and function of all living things.
|
Detailed explanation-1: -The combined observations of Mattias Schleiden, Theodor Schwann and Rudolph Virchow resulted in the formation of the cell theory.
Detailed explanation-2: -Schleiden and Schwann proposed spontaneous generation as the method for cell origination, but spontaneous generation (also called abiogenesis) was later disproven. Rudolf Virchow famously stated “Omnis cellula e cellula”… “All cells only arise from pre-existing cells.
Detailed explanation-3: -The first part states that all organisms are made of cells. The second part states that cells are the basic units of life. These parts were based on a conclusion made by Schwann and Matthias Schleiden in 1838, after comparing their observations of plant and animal cells.
Detailed explanation-4: -Matthias Jacob Schleiden was a German botanist who, with Theodor Schwann, cofounded the cell theory. In 1838 Schleiden defined the cell as the basic unit of plant structure, and a year later Schwann defined the cell as the basic unit of animal structure.