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Cells - The Units of Life

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

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