Cell Theory (BIO.3a)

What is the basic unit of matter?

• atom

• cell

• organism

• biome

What is the basic unit of life?

• Cell

• Organism

• DNA

• Nucleus

Which three of the following statements are a part of cell theory?

• All cells come from pre-existing cells

• Cells can spontaneously generate from non-living matter

• All organisms are made up of one or more cells

• Cells are the smallest and most basic unit of life

• Cells are the highest level of organization in an organism

According to the cell theory, which 2 of the following are true about the origins of life?

• Cells arise from other cells through the process of cell division

• New life originates from non-cellular matter

• Cell division allows for growth in organisms

• Organisms are created fully formed, not from cells

• Cells can appear spontaneously under certain conditions

Which two of the following statements reflect how cell theory relates to the diversity and unity of life?

• All cells are identical in structure and function

• Cell theory suggests that all life forms are unrelated

• Cell theory applies to all living organisms

• Cell theory applies only to animal cells

• Different organisms can have different types of cells

Anton van Leeuwenhoek's observations of ______ refuted the spontaneous generation hypothesis.

• bacteria

• cork

• muscle tissue

• viruses

Spontaneous generation - cells arising from non-living matter - disagrees with which part of cell theory?

• All living things are made of cells

• Cells are the basic unit of life

• Cells come from other living cells via cell division

• Cells contain the genetic material of an organism

Which 2 statements describe the contributions of Rudolf Virchow to the cell theory?

• All cells come from pre-existing cells

• Diseases start at the cellular level

• Animal and plant cells are identical

• Cells cannot be observed with a microscope

The early microscope was developed in the...

• 1600s

• 1800s

• 1980s

• 2000s

Which of the following cannot be considered living?

• skin

• muscle

• sand

• leaf