BMS100 Past Test Questions
Chapter 1, Spring 2010

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1. What "level of organization" is situated between cells and organs?
   1. system
   2. tissue
   3. molecule
   4. organism
   
   
2. The sum of all chemical reactions in the body is called
   1. physiology
   2. homeostasis
   3. metabolism
   4. internal respiration
   
   
3. Which one of the following is true?
   1. The rate at which chemical reactions take place in the body is affected by temperature.
   2. Body temperature is normally regulated by a negative feedback system.
   3. Both of the above.
   4. None of the above.
   
   
4. Controlled conditions in the body, such as temperature, blood pressure, and blood pH
   1. never rise above the pre-determined "set point"
   2. never fall below the pre-determined "set point"
   3. normally fluctuate slightly above and slightly below the pre-determined "set point"
   4. are corrected by positive feedback systems if they fall below the pre-determined "set point"
   
   
5. The "control center" involved in regulation of body temperature is located in
   1. receptors in the skin
   2. blood vessels in the skin
   3. the brain
   4. sweat glands
   
   
6. If blood vessels in the skin dilate,
   1. relatively more blood will flow into the skin
   2. the core (internal) body temperature will increase
   3. both of the above
   4. none of the above
   
   
7. Which one of the following means "cut?"
   1. ana
   2. tom
   3. cyto
   4. homeo
   
   
8. Each organ contains
   1. only one type of tissue
   2. only two types of organelles
   3. at least two different types of tissue
   4. all four types of tissue
   
   
9. Which one of the following processes does not usually involve any interface or direct interaction with the external environment?
   1. digestion
   2. absorption
   3. external respiration
   4. circulation
   5. excretion
   
   
10. In a negative feedback system, the last of the structures to be activated is/are the
    1. receptors
    2. effectors
    3. control center
    
    
11. The thoracic cavity is
    1. part of the ventral cavity
    2. superior to (above) the abdominopelvic cavity
    3. surrounded and protected by the vertebral column
    4. both A. and B.
    5. both A. and C.
    
    
12. Which one of the following is true?
    1. The spinal cord is the same thing as the vertebral column.
    2. The spinal cord is the same thing as the vertebral canal.
    3. The spinal cord is located within the vertebral canal.
    4. The dorsal cavity contains no structures other than the spinal cord and some membranes and fluids.
    
    
13. Which vertebrae (bones of the spine) have a foramen ("hole") passing completely through them?
    1. the cervical vertebrae (vertebrae of the neck) only
    2. the lumbar vertebrae (vertebrae of the lower back) only
    3. all twenty four
    4. none of the vertebrae normally have a foramen passing completely through them
    
    
14. If a hormone lowers the amount of potassium in the blood, then it is likely that activation of that hormone may be directly triggered by
    1. high blood sodium levels
    2. low blood sodium levels
    3. high blood potassium levels
    4. low blood potassium levels
    
    
15. True or false? Typically, slightly more than one half of the calories (energy) in food eventually becomes the heat that keeps the body warm.
    1. True.
    2. False.
    
    

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