Cell Biology Quiz

What is the smallest functional and structural unit of all living organisms?

• Tissue

• Organ

• Cell

• Organism

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Who proposed that all organisms are made up of one or more cells?

• Rudolf Virchow

• Anton van Leeuwenhoek and Theodor Schwann

• Robert Hooke

• Louis Pasteur

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What is the term for the ratio of a cell's outer surface area to its volume?

• Volume-to-mass ratio

• Surface area-to-volume ratio

• Density ratio

• Mass-to-volume ratio

Which part of the cell acts as a protective layer and controls the movement of materials in and out of the cell?

• Nucleus

• Cytoplasm

• Cell membrane

• Mitochondria

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According to cell theory, where do all cells come from?

• Non-living matter

• Existing cells

• Spontaneous generation

• Chemical reactions

What is an organelle?

• A large body in a cell's nucleus

• A small body in a cell's cytoplasm specialized to perform a specific function

• A type of cell membrane

• A genetic material in the cell

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What is the role of DNA in a cell?

• It provides energy for cell processes

• It stores waste products

• It provides instructions for all cell processes

• It transports nutrients

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Which type of cell has a nucleus?

• Prokaryote

• Eukaryote

• Bacteria

• Archaea

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

• Plants

• Animals

• Bacteria

• Fungi

What is a characteristic of prokaryotic cells?

• They have a nucleus

• They have membrane-bound organelles

• Their DNA is free floating in the cytoplasm

• They are usually larger and more complex