Body Systems Ncfe Review

21 Questions | Total Attempts: 96

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Body Systems Ncfe Review


Questions and Answers
  • 1. 
    Cells are the simplest form of life.
    • A. 

      True

    • B. 

      False

  • 2. 
    Which statement describes the organization of living organisms?
    • A. 

      All organisms are composed of many cells, which are the basic units of structure but do not perform life functions.

    • B. 

      All organisms are composed of one or more cells, which are the basic units of structure and perform essential life functions.

    • C. 

      All organisms are composed of many cells that have basic units with unique structures and functions.

    • D. 

      All organisms are composed of one or more cells with the same shape and purpose but are not the basic units of structure.

  • 3. 
    Which best explains why muscle is considered a tissue?
    • A. 

      It connects to the bones

    • B. 

      It can move voluntarily or involuntarily 

    • C. 

      It interacts with several organ systems

    • D. 

      It is a group of cells working together

  • 4. 
    Which is the highest level of organization?
    • A. 

      Cells

    • B. 

      Tissues 

    • C. 

      Organ

    • D. 

      Organ systems

  • 5. 
    A student practicing for the outdoor track team begins to sweat.  To what stimulus is the body responding?
    • A. 

      An increase in heart rate

    • B. 

      Increase in body temperature

    • C. 

      Increase in oxygen demand

    • D. 

      Increase in breathing rate

  • 6. 
    What is the main function of the vomiting reflex? 
    • A. 

      Rid the body of wastes 

    • B. 

      Expel food that has no nutritional value

    • C. 

      Empty stomach when it has too much food 

    • D. 

      Remove toxic material from the stomach before it is absorbed

  • 7. 
    Why does the brain of mammals keep track of temperature of the skin and the blood?
    • A. 

      Control the activity level of the mammal

    • B. 

      Guide the mammal to warmer or colder locations

    • C. 

       maintain a stable body temperature regardless of air temperature

    • D. 

      Regulate breathing rate, heart rate in extreme conditions

  • 8. 
    What is the primary source of genetic information found in a cell?
    • A. 

      ATP

    • B. 

      DNA

    • C. 

      RNA

    • D. 

      ESP

  • 9. 
    Referring to the human body, which complex level of organization (highest level) would contain the lungs?
    • A. 

      Respiratory system

    • B. 

      Lung cells

    • C. 

      Lung tissues

    • D. 

      Windpipe

  • 10. 
    How do the digestive and the circulatory system work together within the human body?
    • A. 

      Digestive system send electrical messages, while the circulatory system responds to the messages

    • B. 

      Digestive system provides structure for the body, while the circulatory system directs the movement

    • C. 

      Digestive system removes liquid toxins from body, while the circulatory system removes the solid waste

    • D. 

      Digestive system extracts nutrients from food, while the circulatory system transports those nutrients

  • 11. 
    Cells in the body are specialized to perform certain functions. Most cells have a certain size & shape related to their purpose within the human body. The diagram below shows one type of cell. Based on the shape, what is the most likely function of this cell?
    • A. 

      Provide structure and support

    • B. 

      Carry blood throughout the body

    • C. 

      Provide a cover over the body tissues

    • D. 

      Carry impulses throughout the body

  • 12. 
    What part of the digestive system first causes chemical changes to food?
    • A. 

      Teeth 

    • B. 

      Saliva in the mouth

    • C. 

      Enzymes in the stomach

    • D. 

      Enzymes in the small intestine

  • 13. 
    Use the diagram- Which body system would include the movement and works in coordination with the skeletal system?
    • A. 

      Muscular

    • B. 

      Digestive

    • C. 

      Circulatory

    • D. 

      Respiratory

  • 14. 
    You touch a hot pan on the stove. The immediate reaction of your hand is to pull back from the heat. What body systems are active and working?
    • A. 

      Muscular and Nervous Systems

    • B. 

      Respiratory and Digestive Systems 

    • C. 

      Nervous and Digestive Systems

    • D. 

      Digestive and Muscular

  • 15. 
    What is blood clotting made possible by?
    • A. 

      White blood cells

    • B. 

      Red blood cells

    • C. 

      Platelets

    • D. 

      Plasma

  • 16. 
    _________________ : soldiers  within the circulatory system
    • A. 

      White blood cells

    • B. 

      Red blood cells

    • C. 

      Plasma

    • D. 

      Platelets

  • 17. 
    Arteries carry blood away from the heart. 
    • A. 

      True

    • B. 

      False

  • 18. 
    Where is plasma found? 
    • A. 

      In the blood

    • B. 

      In bone marrow

    • C. 

      In your muscles 

    • D. 

      In your brain

  • 19. 
    The major function or purpose of B-cells within the body would be to.... 
    • A. 

      Produce antibodies 

    • B. 

      Kill off invading threats 

    • C. 

      They are dangerous to your body and as a result can kill you 

    • D. 

      None of the above 

  • 20. 
    In the human body, the primary function of this body system is the movement of bones, body fluids, and food....
    • A. 

      Digestive 

    • B. 

      Skeletal 

    • C. 

      Circulatory

    • D. 

      Muscular

  • 21. 
    Homeostasis helps to regulate which of the following...
    • A. 

      Blood pressure

    • B. 

      Blood sugar

    • C. 

      Heat/cold (body temperature)

    • D. 

      Amount of water/salts body has taken in

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