Cells Regents Questions Review

Which statement is not part of the cell theory?

• Cells are the basic unit of structure of living things.

• Cells are the basic unit of function of living things.

• Cell parts such as chloroplasts are self-replicating.

• Cells come from preexisting cells

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The diagram below represents levels of organization in living things.

Which term would best represent X?

• human

• tissue

• stomach

• chloroplast

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What is common to all cells?

• All cells have a cell wall.

• All cells are photosynthetic.

• All cells divide to form new cells.

• All cells have a nucleus

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Which instrument was used in the 18th and 19th centuries and helped scientists develop the cell theory?

• electron microscope

• light microscope

• microdissecting apparatus

• ultracentrifuge

Which is the correct sequence of historical developments leading to our present knowledge of cells?

• electron microscope cell theory compound light microscope

• compound light microscope cell theory electron microscope

• cell theory electron microscope compound light microscope

• electron microscope compound light microscope cell theory

One primary function of the cell membrane is

• regulating the flow of simple sugars into or out of the cell

• synthesizing substances by breaking down cell organelles

• storing carbohydrates, water, and starches for future use

• digesting carbohydrates, fats, and protein

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Which cell structure is mainly responsible for releasing energy from food molecules in some single-celled organisms?

• ribosome

• chloroplast

• cell membrane

• mitochondrion

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A photograph of human cells as seen with a compound light microscope is shown below. A cell structure is labeled A.

Structure A is most likely a

• mitochondrion that synthesizes food for the cell

• nucleus that is the site of food storage

• mitochondrion that absorbs energy from the Sun

• nucleus that is responsible for the storage of information

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In a multicellular organism, organs carry out a variety of life functions. In a single-celled organism, these functions are performed by

• tissues

• organelles

• organ systems

• organs

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The chloroplast is to a plant as

• a window is to a building

• a solar cell is to a building

• a room is to a building

• the roof is to a building

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