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Cells - The Units of Life

Practice Test
  1.What is the function of a nerve cell?  
  a.   to store fat  
  b.   to receive and deliver messages  
  c.   to form a protective layer for your body  
  d.   to contract and relax muscles  
  2.Groups of similar cells that all do the same sort of work are called __________.  
  a.   tissues  
  b.   organ systems  
  c.   cell systems  
  d.   organs  
  3.Where is the hereditary material located in the cell?  
  a.   the mitochondrion  
  b.   the vacuole  
  c.   the cell membrane  
  d.   the nucleus  
  4.What is the smallest unit of life in all living things called?  
  a.   bacteria  
  b.   a molecule  
  c.   an atom  
  d.   a cell  
  5.Which of the following does NOT have organelles?  
  a.   bacteria  
  b.   algae  
  c.   fungi  
  d.   plants  
  6.Cells that form a system through which water, food, and other materials move in a plant are __________.  
  a.   long and tubelike  
  b.   brick shaped  
  c.   round  
  d.   block shaped  
  7.What object did Robert Hooke first observe cells in?  
  a.   a cork  
  b.   a muscle  
  c.   a leaf  
  d.   a bacterium  
  8.Which of the following are the smallest organisms on Earth?  
  a.   bacteria  
  b.   shrimp  
  c.   algae  
  d.   mold  
  9.Where does cellular respiration occur?  
  a.   in the vacuole  
  b.   in the lungs  
  c.   in the mitochondrion  
  d.   in the chloroplasts  
  10.What part of the cell helps control what enters and leaves the cell?  
  a.   mitochondrion  
  b.   nucleus  
  c.   cytoplasm  
  d.   cell membrane  
  11.What type of instrument is used to look at cells?  
  a.   binoculars  
  b.   glasses  
  c.   telescope  
  d.   microscope  
  12.The statement that all cells come from cells that already exist is part of __________.  
  a.   Hooke's theory  
  b.   the fossil record  
  c.   the cell theory  
  d.   the reproductive theory  
  13.Which type of cell forms a protective layer for your body?  
  a.   fat cell  
  b.   nerve cell  
  c.   skin cell  
  d.   muscle cell  
  14.What determines which traits an organism will have?  
  a.   DNA  
  b.   the mitochondrion  
  c.   cytoplasm  
  d.   the nucleus  
  15.Which of the following is NOT an organ?  
  a.   skin  
  b.   bones  
  c.   blood tissue  
  d.   the heart  
  16.Blood is considered a(n) __________.  
  a.   cell  
  b.   organ system  
  c.   organ  
  d.   tissue  
  17.If a group of organs work together to perform a specific job, what are they called?  
  a.   an organism  
  b.   helper organs  
  c.   tissue systems  
  d.   an organ system  
  18.Cytoplasm is made mostly of _________.  
  a.   vitamins  
  b.   gelatin  
  c.   water  
  d.   chemicals  
  19.Which of these is similar in function to a vacuole?  
  a.   a closet  
  b.   a bakery manager  
  c.   a wall  
  d.   an electric circuit  
  20.Which of the following is an organ?  
  a.   blood tissue  
  b.   muscle tissue  
  c.   nerve tissue  
  d.   stomach  

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