10 Questions
Robert Hooke discovered the cell in 1665.
True
According to the cell theory, all organisms are composed of molecules.
False
Unicellular organisms are capable of independent existence and carry out functions like digestion and reproduction.
True
Human blood contains about five billion erythrocytes per cubic ml of blood.
False
Muscle cells are mainly concerned with the conduction of nerve impulses.
False
Prokaryotic cells have a nucleus and membrane-bound organelles.
False
The majority of cells are visible to the naked eye.
False
Both bacteria and archaea belong to the prokaryotic domain.
True
Eukaryotic cells lack nuclei and membrane-bound organelles.
False
Human red blood cells measure 7-8 mm in diameter.
False
Test your knowledge on cell theory, cellular structure, and the principles of the cell theory including the concept that all organisms are composed of cells, cells are the structural and functional unit of life, and that cells arise from pre-existing cells.
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