IQI4 



BOTANY 



Monday 2-4 p. m. 



A teacher's certificate covering the entire laboratory instruction must be presented 

 as a part of the examination. 



Answer ten questions. At least two questions must be selected from Group E and 

 one from each of the other groups. The remaining four questions may be selected as 

 desired by the student. No extra credit will be given for more than ten questions. 



A. The Plant Cell. (Answer one question from this group.) 



1. Describe and illustrate by labeled drawings a typical cell. 



2. Why is the cell called the "unit of plant structure" ? 



B. The Plant in Germination. (Answer one question from this group.) 



3. Compare the process of germination in a seed with endosperm and in a 

 seed without endosperm. 



4. By carefully labeled drawings, illustrate three stages in the germination 

 of a monocotyledonous and of a dicotyledonous plant. 



5. Explain why a test for the presence of sugar in a wheat seedling shows a 

 marked reaction, while the test for the same substance in a wheat kernel 

 shows no reaction. 



C. Life Processes of the Mature Plant. (Answer three questions from this group.) 



6. Name two important functions of roots and give the characteristics of the 

 root which adapt it to perform these functions. 



7. Describe an experiment to prove that one of these functions is performed 

 by the root. 



8. Describe an experiment to show that oxidation is carried on in green plants. 



9. How would you prove that the result of this process is the same as that 

 produced by burning a match or by the respiration of an animal ? 



10. Discuss photosynthesis, outlining in detail (i) the conditions necessary 

 for carrying on the process together with (2) the nature and (3) the 

 sources of the materials used. 



D. The Plant in Relation to Its Environment. (Answer two questions from this 

 group.) 



11. In what ways is the quantity of water in the environment of a plant of 

 importance to its growth ? 



1 2 . Describe some modifications adapting the plant to a limited water supply. 



13. What in general are the characteristics of wind-pollinated flowers ? 



14. State briefly the common agencies of seed dispersal, and describe the 

 general structural modifications by which the plant makes use of these 

 agencies. 



E. Plant Groups. (Answer three questions from this group.) 



15. Discuss reproduction in the algae as illustrated by a type plant studied 

 in class. 



1 6. Name a fungus and describe its life history. 



17. Give the principal similarities and differences in the life history of the 

 fern and of the moss. 



1 8. Name and give the chief characteristics of five families of Angiosperms. 



19. What part of a plant furnishes: flour, manila-hemp, linen, cotton, 

 castor oil? 



