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Cells - The Units of Life

Practice Test
  1.What determines which traits an organism will have?  
  a.   DNA  
  b.   the nucleus  
  c.   cytoplasm  
  d.   the mitochondrion  
  2.Where does cellular respiration occur?  
  a.   in the vacuole  
  b.   in the lungs  
  c.   in the chloroplasts  
  d.   in the mitochondrion  
  3.What part of the cell helps control what enters and leaves the cell?  
  a.   mitochondrion  
  b.   cell membrane  
  c.   nucleus  
  d.   cytoplasm  
  4.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  
  5.Which of the following are the smallest organisms on Earth?  
  a.   shrimp  
  b.   mold  
  c.   bacteria  
  d.   algae  
  6.Which of the following does NOT have organelles?  
  a.   algae  
  b.   fungi  
  c.   bacteria  
  d.   plants  
  7.Plants, algae, and many bacteria make their own food through the process of __________.  
  a.   photosynthesis  
  b.   digestion  
  c.   metabolism  
  d.   cellular respiration  
  8.What is the function of a nerve cell?  
  a.   to contract and relax muscles  
  b.   to store fat  
  c.   to form a protective layer for your body  
  d.   to receive and deliver messages  
  9.Cytoplasm is made mostly of _________.  
  a.   gelatin  
  b.   water  
  c.   vitamins  
  d.   chemicals  
  10.Which of these is similar in function to a vacuole?  
  a.   a wall  
  b.   an electric circuit  
  c.   a bakery manager  
  d.   a closet  
  11.What type of instrument is used to look at cells?  
  a.   microscope  
  b.   binoculars  
  c.   telescope  
  d.   glasses  
  12.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  
  13.Blood is considered a(n) __________.  
  a.   organ system  
  b.   tissue  
  c.   cell  
  d.   organ  
  14.What is the smallest unit of life in all living things called?  
  a.   a molecule  
  b.   a cell  
  c.   an atom  
  d.   bacteria  
  15.Cells that form a system through which water, food, and other materials move in a plant are __________.  
  a.   round  
  b.   block shaped  
  c.   brick shaped  
  d.   long and tubelike  
  16.Where is the hereditary material located in the cell?  
  a.   the vacuole  
  b.   the nucleus  
  c.   the cell membrane  
  d.   the mitochondrion  
  17.Chloroplasts capture energy from the __________ to make food.  
  a.   stored sugar  
  b.   Sun  
  c.   Moon  
  d.   soil  
  18.Which two structures do plant cells have that animal cells do not have?  
  a.   chloroplasts and a cell wall  
  b.   cell membrane and a nucleus  
  c.   vacuoles and chloroplasts  
  d.   chromosomes and chlorophyll  
  19.Which of the following is an organ?  
  a.   stomach  
  b.   muscle tissue  
  c.   blood tissue  
  d.   nerve tissue  
  20.What object did Robert Hooke first observe cells in?  
  a.   a leaf  
  b.   a bacterium  
  c.   a cork  
  d.   a muscle  

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