Biology Quiz

What are the basic units of structure and function in living things?

• Atoms

• Molecules

• Cells

• Tissues

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What is the control center of a cell?

• Mitochondria

• Nucleus

• Ribosome

• Cell wall

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What is the function of a cell wall?

• To produce energy

• To protect and support the cell

• To control cell division

• To transport nutrients

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What process allows molecules to move from an area of higher concentration to an area of lower concentration?

• Osmosis

• Diffusion

• Active transport

• Filtration

What is the ultimate source of energy for all living things?

• Water

• The sun

• Wind

• Soil

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What is an organism called that can make its own food?

• Heterotroph

• Decomposer

• Autotroph

• Parasite

During which stage of the cell cycle does the cell’s nucleus divide into two new nuclei?

• Interphase

• Cytokinesis

• Mitosis

• Meiosis

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All cells come from

• the mitochondria

• other cells

• the nucleus

• the vacuole

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Specialized cells are only found in

• plants

• animals

• unicellular organisms

• many-celled, or multicellular, organisms

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An instrument used by scientists to look at very small objeccts

• spectrograph

• microscope

• telescope

• stethoscope