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Cells - The Units of Life

Practice Test
  1.Where does cellular respiration occur?  
  a.   in the vacuole  
  b.   in the mitochondrion  
  c.   in the lungs  
  d.   in the chloroplasts  
  2.Plants, algae, and many bacteria make their own food through the process of __________.  
  a.   digestion  
  b.   metabolism  
  c.   cellular respiration  
  d.   photosynthesis  
  3.Which of the following is NOT an organ?  
  a.   the heart  
  b.   skin  
  c.   blood tissue  
  d.   bones  
  4.The statement that all cells come from cells that already exist is part of __________.  
  a.   the reproductive theory  
  b.   the fossil record  
  c.   the cell theory  
  d.   Hooke's theory  
  5.Put the level of organization in order from smallest to largest.  
  a.   cells, organs, tissues, and organ systems  
  b.   cells, tissues, organs, and organ systems  
  c.   organ system, organs, tissues, and cells  
  d.   organs, tissues, cells, and organ system  
  6.Which of the following are the smallest organisms on Earth?  
  a.   algae  
  b.   shrimp  
  c.   mold  
  d.   bacteria  
  7.Which of the following does NOT have organelles?  
  a.   plants  
  b.   algae  
  c.   fungi  
  d.   bacteria  
  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.   organ systems  
  c.   tissues  
  d.   cell systems  
  10.What type of instrument is used to look at cells?  
  a.   glasses  
  b.   binoculars  
  c.   telescope  
  d.   microscope  
  11.What is the function of a nerve cell?  
  a.   to form a protective layer for your body  
  b.   to receive and deliver messages  
  c.   to contract and relax muscles  
  d.   to store fat  
  12.Blood is considered a(n) __________.  
  a.   organ system  
  b.   cell  
  c.   organ  
  d.   tissue  
  13.What is the smallest unit of life in all living things called?  
  a.   a molecule  
  b.   an atom  
  c.   a cell  
  d.   bacteria  
  14.What determines which traits an organism will have?  
  a.   cytoplasm  
  b.   the nucleus  
  c.   the mitochondrion  
  d.   DNA  
  15.What object did Robert Hooke first observe cells in?  
  a.   a cork  
  b.   a muscle  
  c.   a bacterium  
  d.   a leaf  
  16.Which of the following is an organ?  
  a.   blood tissue  
  b.   muscle tissue  
  c.   nerve tissue  
  d.   stomach  
  17.What part of the cell helps control what enters and leaves the cell?  
  a.   nucleus  
  b.   mitochondrion  
  c.   cytoplasm  
  d.   cell membrane  
  18.Chloroplasts capture energy from the __________ to make food.  
  a.   soil  
  b.   stored sugar  
  c.   Sun  
  d.   Moon  
  19.Cytoplasm is made mostly of _________.  
  a.   vitamins  
  b.   gelatin  
  c.   water  
  d.   chemicals  
  20.Where is the hereditary material located in the cell?  
  a.   the nucleus  
  b.   the mitochondrion  
  c.   the vacuole  
  d.   the cell membrane  

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