Cell Theory and organelles of Eukaryotic Cell - T Levels Health

Who are the scientists credited with formulating the cell theory?

• Charles Darwin and Gregor Mendel

• Matthias Schleiden, Theodor Schwann, and Rudolf Virchow

• Galileo Galilei and Johannes Kepler

• James Watson and Francis Crick

What is the basic unit of life according to cell theory?

• DNA

• Organelle

• Tissue

• Cell

What does the cell theory state about the origin of new cells?

• New cells can arise from pre-existing cells.

• New cells can arise from the fusion of two cells.

• New cells can arise from the combination of chemical elements.

• New cells can arise spontaneously from non-living matter.

Which of the following is NOT one of the principles of cell theory?

• All living organisms are composed of cells.

• The cell is the basic unit of life.

• Cells come from pre-existing cells.

• All cells have the same genetic material.

How do unicellular organisms differ from multicellular organisms with respect to cell theory?

• Unicellular organisms are more complex than multicellular organisms.

• Unicellular organisms have only one cell, while multicellular organisms have multiple cells.

• Unicellular organisms do not follow cell theory.

• Unicellular organisms have more cells than multicellular organisms.

Who first observed living cells including bacteria and protists?

• Theodor Schwann

• Antonie van Leeuwenhoek

• Robert Hooke

• Matthias Schleiden

Which scientist proposed that all plants are composed of cells?

• Robert Brown

• Matthias Schleiden

• Theodor Schwann

• Rudolf Virchow

What is the process by which bacteria reproduce?

• Budding

• Binary fission

• Meiosis

• Mitosis

Which of the following is an example of a unicellular organism?

• Human

• Yeast

• Tree

• Dog

What did Rudolf Virchow contribute to the cell theory?

• Cells arise from pre-existing cells.

• All animal tissues are made up of cells.

• Cells are the basic unit of life.

• All plants are composed of cells.