Cells and Cell Theory

In 1665, Robert Hooke looked through a simple microscope and saw an image similar to the one below. Which of the following describe the individual structural units of living matter that he saw?

• atoms

• cells

• tissue

• molecules

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What does an amoeba and a human have in common?

• brain

• heart

• cells

• lungs

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In order to carry out the functions of life, organisms must

• have access to sunlight

• have at least one cell

• be able to move

• have different types of cells

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What does "unicellular" mean?

• having only one cell

• having many cells

• having different types of cells

• having at least one cell

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What does "multicellular" mean?

• having only one cell

• having many cells

• having different types of cells

• lacking any cells

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When a multicellular organism is damaged, it will repair itself as

• the cells work together

• the cells die off

• the cells mutate

• the cells pass their genetic materials to offspring

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Schleiden, Schwann, and Virchow all contributed to the development of the cell theory. Which statements listed below are a part of the Cell Theory?

• Cells are the smallest unit of living things that can perform the processes necessary for life.

• The basic components of life consist of a nucleus, cell membrane, and mitochondrion.

• Living things come only from other living things.

• Cells are composed of atoms.

• All living things are composed of one or more cells.

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What two scientists determined that plants and animals are made of cells?

• Virchow

• Schwann

• Schleiden

• Hooke

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What is the primary difference between a prokaryotic and eukaryotic cell?

• A prokaryotic cell has a nucleus

• A prokaryotic cell does not have a nucleus

• A eukaryotic cell has DNA floating throughout the cell

• A prokaryotic has DNA contained within a nucleus.

Which of the following are found in both prokaryotic and eukaryotic cells?

• nucleus

• cell membrane

• DNA

• cytoplasm

• ribosomes