1) List the two major types of glands and describe the functionof each type of gland.
2)Draw a negative feedback diagram showing the activity ofParathyroid Hormone  Â
    (PTH) on calcium balance in the blood.Within the diagram, remember to show the
    basic components of a feedbackloop! Â
3). State and explain the processes involved in the expressionof a gene in a DNA
    molecule as a protein product.
4) State the role of the following cellularorganelles/parts/regions: (3 points)
a. Rough endoplasmic reticulum
b. Smooth endoplasmic reticulum
c. Chromatin
    Â
5. Identify the following molecules. For a, name the reactionlinks molecules of this type
    together?  For b, name thechemical the molecule is derived from. (4 points)
a.                       b.
6.  List two ways that cardiac muscle differs fromskeletal muscle. (2 points)
7. Explain the principle of osmosis. (2points)
