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Cells - The Units of Life

Practice Test
  1.The statement that all cells come from cells that already exist is part of __________.  
  a.   the reproductive theory  
  b.   Hooke's theory  
  c.   the cell theory  
  d.   the fossil record  
  2.Where does cellular respiration occur?  
  a.   in the mitochondrion  
  b.   in the vacuole  
  c.   in the lungs  
  d.   in the chloroplasts  
  3.Blood is considered a(n) __________.  
  a.   organ system  
  b.   organ  
  c.   cell  
  d.   tissue  
  4.Which of the following is NOT an organ?  
  a.   bones  
  b.   skin  
  c.   blood tissue  
  d.   the heart  
  5.Plants, algae, and many bacteria make their own food through the process of __________.  
  a.   photosynthesis  
  b.   digestion  
  c.   metabolism  
  d.   cellular respiration  
  6.Which of the following are the smallest organisms on Earth?  
  a.   mold  
  b.   shrimp  
  c.   bacteria  
  d.   algae  
  7.Where is the hereditary material located in the cell?  
  a.   the cell membrane  
  b.   the mitochondrion  
  c.   the nucleus  
  d.   the vacuole  
  8.If a group of organs work together to perform a specific job, what are they called?  
  a.   helper organs  
  b.   an organ system  
  c.   tissue systems  
  d.   an organism  
  9.What object did Robert Hooke first observe cells in?  
  a.   a cork  
  b.   a bacterium  
  c.   a muscle  
  d.   a leaf  
  10.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  
  11.If a microscope has a lens with a power of 20X, how many times will it magnify something?  
  a.   2 times its actual size  
  b.   200 times its actual size  
  c.   2,000 times its actual size  
  d.   20 times is actual size  
  12.What determines which traits an organism will have?  
  a.   DNA  
  b.   the nucleus  
  c.   the mitochondrion  
  d.   cytoplasm  
  13.Cytoplasm is made mostly of _________.  
  a.   water  
  b.   gelatin  
  c.   vitamins  
  d.   chemicals  
  14.What is the smallest unit of life in all living things called?  
  a.   an atom  
  b.   a cell  
  c.   bacteria  
  d.   a molecule  
  15.Which two structures do plant cells have that animal cells do not have?  
  a.   vacuoles and chloroplasts  
  b.   chloroplasts and a cell wall  
  c.   cell membrane and a nucleus  
  d.   chromosomes and chlorophyll  
  16.Chloroplasts capture energy from the __________ to make food.  
  a.   Moon  
  b.   Sun  
  c.   stored sugar  
  d.   soil  
  17.Which of the following is an organ?  
  a.   stomach  
  b.   nerve tissue  
  c.   muscle tissue  
  d.   blood tissue  
  18.What type of instrument is used to look at cells?  
  a.   telescope  
  b.   microscope  
  c.   glasses  
  d.   binoculars  
  19.Which of the following does NOT have organelles?  
  a.   bacteria  
  b.   algae  
  c.   fungi  
  d.   plants  
  20.Put the level of organization in order from smallest to largest.  
  a.   organs, tissues, cells, and organ system  
  b.   cells, tissues, organs, and organ systems  
  c.   organ system, organs, tissues, and cells  
  d.   cells, organs, tissues, and organ systems  

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