Plant Physiology (Biology 327)  - Dr. Stephen G. Saupe;  College of St. Benedict/ St. John's University;  Biology Department; Collegeville, MN  56321; (320) 363 - 2782; (320) 363 - 3202, fax;    ssaupe@csbsju.edu

Plant Growth & Development Exam Questions

1. Provide a general description of a hormone. Compare and contrast hormones in plants and animals (i.e., number, specificity, distribution). Describe how you can "prove" that a particular hormone is responsible for a development change.
    
2. For the AUXIN's describe: (1) general chemistry (i.e., structure); (2) synthetic analogs with activity; (3) biosynthesis; (4) mode of transport (i.e., polar transport); (5) method for regulating endogenous levels; (6) bioassays; (7) major actions; (8) mechanism of action; and (9) commercial application.
    
3. For the GIBBERELLIN's, describe: (1) general chemistry (i.e., structure); (2) synthetic analogs with activity; (3) biosynthesis; (4) mode of transport (tissue, direction); (5) method for regulating endogenous levels; (6) bioassays; (7) major actions; (8) mechanism of action; (9) commercial application; (10) inhibitors/antagonists of gibberellin activity. Include a discussion of how GA mobilizes stored reserves in cereal grains.
    
4. For the CYTOKININ's, describe: (1) general chemistry (i.e., structure); (2) synthetic analogs with activity; (3) biosynthesis; (4) mode of transport (tissue, direction); (5) method for regulating endogenous levels; (6) bioassays; (7) major actions; (8) mechanism of action; and (9) commercial application.
    
5. For ABSCISIC ACID, describe: (1) general chemistry (i.e., structure); (2) synthetic analogs with activity; (3) biosynthesis; (4) mode of transport (tissue, direction); (5) method for regulating endogenous levels; (6) bioassays; (7) major actions; (8) mechanism of action; (9) commercial application; and (10) inhibitors/antagonists of abscisic acid activity.
    
6. For ETHYLENE, describe: (1) general chemistry (i.e., structure); (2) synthetic analogs with activity; (3) biosynthesis; (4) mode of transport (tissue, direction); (5) method for regulating endogenous levels; (6) bioassays; (7) major actions; (8) mechanism of action; (9) commercial application; and (10) inhibitors/antagonists of ethylene activity.