BMS107 Past Test Questions
Chapter 2, Spring 2011

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1. Intracellular fluid is present in
   1. lymph
   2. cytoplasm
   3. plasma portion of blood
   4. all of the above
   
   
2. In a plasma membrane, most of the phospholipid molecules are
   1. organized into two layers
   2. bound to other molecules and unable to move within the membrane
   3. unbound to other molecules and able to move within the membrane
   4. both A. and B.
   5. both A. and C.
   
   
3. Which statement is true of the hydrophilic "heads" of phospholipid molecules in the plasma membrane?
   1. Some of the hydrophilic "heads" of membrane phospholipids are in contact with intracellular fluid.
   2. Some of the hydrophilic "heads" of membrane phospholipids are in contact with extracellular fluid.
   3. Both of the above.
   4. None of the above.
   
   
4. What is the term for the extracellular fluid that surrounds cells in a solid tissue?
   1. cytoplasm
   2. plasma
   3. lymph
   4. interstitial fluid
   
   
5. The part of a plasma membrane that is occupied mainly by phospholipid "tails" is
   1. a hydrophilic environment
   2. a hydrophobic environment
   3. an intracellular environment known as the "interstitial compartment"
   4. an extracellular environment known as the "interstitial compartment"
   
   
6. A membranous, intracellular sac that contains enzymes or other materials may be known as a
   1. phospholipid
   2. vesicle
   3. ribosome
   4. chromatid
   
   
7. What are the major functions of endoplasmic reticulum (ER)?
   1. rough ER produces and packages proteins such as enzymes
   2. smooth ER produces and packages lipids such as steroids and phospholipids, and is involved in detoxification of harmful compounds
   3. both rough and smooth ER participate directly in endocytosis including phagocytosis
   4. A. and B. are major functions of endoplasmic reticulum
   5. A. and C. are major functions of endoplasmic reticulum
   
   
8. Secretory vesicles are an important part of the process known as
   1. endocytosis
   2. exocytosis
   3. mitosis
   4. all of the above
   
   
9. Phagocytosis, a function of many white blood cells, is one type of
   1. endocytosis
   2. exocytosis
   3. ossification
   4. resorption
   
   
10. A vesicle that was produced by phagocytosis may unite with a _?_ for purposes of destroying the contents of the vesicle.
    1. lysosome
    2. ribosome
    3. microtubule
    4. Golgi apparatus
    
    
11. Which one of the following contains the greatest amount of DNA?
    1. lysosome
    2. chromatin
    3. secretory vesicle
    4. rough endoplasmic reticulum
    
    
12. DNA replicates during the part of the cell cycle known as
    1. prophase
    2. anaphase
    3. interphase
    4. metaphase
    5. cytokinesis
    
    
13. During prophase and metaphase
    1. DNA is relatively condensed into visible chromosomes
    2. it can be seen that each chromosome consists of two (2) identical chromatids
    3. it can be seen that each chromosome consists of forty-six (46) nonidentical chromatids
    4. both A. and B.
    5. both A. and C.
    
    
14. During anaphase
    1. the DNA of sister chromatids begins to condense
    2. chromosomes move toward the equatorial plate
    3. sister chromatids separate and are moved apart by microtubules
    4. the cytoplasm divides into two cells
    
    
15. Mitosis in a stem cell usually results in the production of
    1. one stem cell and one progenitor cell
    2. two progenitor cells
    3. two stem cells and two progenitor cells
    4. none of the above
    
    
16. A cell that is actively involved in secretion would be likely to contain a relatively large number of
    1. lysosomes
    2. chromosomes
    3. Golgi apparati
    4. all of the above