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Cells - The Units of Life

Practice Test
  1.What object did Robert Hooke first observe cells in?  
  a.   a muscle  
  b.   a bacterium  
  c.   a leaf  
  d.   a cork  
  2.Plants, algae, and many bacteria make their own food through the process of __________.  
  a.   cellular respiration  
  b.   photosynthesis  
  c.   digestion  
  d.   metabolism  
  3.The statement that all cells come from cells that already exist is part of __________.  
  a.   Hooke's theory  
  b.   the fossil record  
  c.   the reproductive theory  
  d.   the cell theory  
  4.Which of these is similar in function to a vacuole?  
  a.   a bakery manager  
  b.   a closet  
  c.   a wall  
  d.   an electric circuit  
  5.If a microscope has a lens with a power of 20X, how many times will it magnify something?  
  a.   200 times its actual size  
  b.   20 times is actual size  
  c.   2 times its actual size  
  d.   2,000 times its actual size  
  6.Cells that form a system through which water, food, and other materials move in a plant are __________.  
  a.   block shaped  
  b.   round  
  c.   long and tubelike  
  d.   brick shaped  
  7.Groups of similar cells that all do the same sort of work are called __________.  
  a.   cell systems  
  b.   organs  
  c.   organ systems  
  d.   tissues  
  8.What is the smallest unit of life in all living things called?  
  a.   bacteria  
  b.   a molecule  
  c.   an atom  
  d.   a cell  
  9.Cytoplasm is made mostly of _________.  
  a.   chemicals  
  b.   gelatin  
  c.   water  
  d.   vitamins  
  10.What type of instrument is used to look at cells?  
  a.   binoculars  
  b.   microscope  
  c.   glasses  
  d.   telescope  
  11.Blood is considered a(n) __________.  
  a.   organ system  
  b.   organ  
  c.   tissue  
  d.   cell  
  12.Which type of cell forms a protective layer for your body?  
  a.   fat cell  
  b.   muscle cell  
  c.   skin cell  
  d.   nerve cell  
  13.Put the level of organization in order from smallest to largest.  
  a.   cells, tissues, organs, and organ systems  
  b.   organs, tissues, cells, and organ system  
  c.   organ system, organs, tissues, and cells  
  d.   cells, organs, tissues, and organ systems  
  14.What determines which traits an organism will have?  
  a.   cytoplasm  
  b.   the mitochondrion  
  c.   the nucleus  
  d.   DNA  
  15.What is the function of a nerve cell?  
  a.   to contract and relax muscles  
  b.   to form a protective layer for your body  
  c.   to receive and deliver messages  
  d.   to store fat  
  16.If a group of organs work together to perform a specific job, what are they called?  
  a.   tissue systems  
  b.   an organism  
  c.   an organ system  
  d.   helper organs  
  17.Chloroplasts capture energy from the __________ to make food.  
  a.   soil  
  b.   stored sugar  
  c.   Sun  
  d.   Moon  
  18.Where is the hereditary material located in the cell?  
  a.   the vacuole  
  b.   the mitochondrion  
  c.   the nucleus  
  d.   the cell membrane  
  19.Where does cellular respiration occur?  
  a.   in the chloroplasts  
  b.   in the vacuole  
  c.   in the lungs  
  d.   in the mitochondrion  
  20.Which of the following does NOT have organelles?  
  a.   bacteria  
  b.   plants  
  c.   algae  
  d.   fungi  

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