Exploring the Discovery of Cell Theory

Who was the first to use the term 'cell' to describe structures observed under a microscope?

• Robert Brown

• Robert Hooke

• Dr. Schwan

• Dr. Schleiden

What did Robert Hooke observe in a piece of cork?

• Chloroplasts

• Cells

• Mitochondria

• Nucleus

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What consistent feature did Robert Brown find in every plant cell?

• Cell wall

• Vacuole

• Chlorophyll

• Nucleus

What did Robert Brown call the dense structure he observed inside cells?

• Cytoplasm

• Cell membrane

• Nucleus

• Golgi apparatus

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Who discovered the nucleus within the cell?

• Dr. Schleiden

• Dr. Schwan

• Robert Brown

• Robert Hooke

Which two scientists are credited with formulating the initial cell theory?

• Watson and Crick

• Dr. Schwan and Dr. Schleiden

• Darwin and Mendel

• Robert Hooke and Robert Brown

According to Schwan and Schleiden, what is the nature of the material inside cells?

• Inert and crystalline

• Static and rigid

• Fluid-like

• Alive and moving

What conclusion did Schwan and Schleiden draw about cells?

• Cells are non-living

• Cells can exist only in plants

• Cells contain DNA

• Cells are the basic units of life

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What is the significance of cells according to the expanded cell theory?

• Only animals are made of cells

• All living things are made of cells

• Cells do not contain genetic material

• Cells can only be seen with an electron microscope

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What did the expanded cell theory state about complex organisms?

• They are made of non-living cells

• They are made of millions of living cells

• They do not follow cell theory

• They are made of a single cell

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