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Semester I Examinations 2009 / 2010
Exam Code(s) 2BS1, 2EH1, 2EV1, 2MR1, 1OA1, 1EM1 Exam(s) Second Science (Undenominated)
Second Science (Earth and Ocean Science) Second Science (Environmental Science) Second Science (Marine Science) Visiting, Erasmus Students
Module Code(s) 2BS1–BT216, 2EH1–BT216, 2EV1–BT216, 2MR1–BT216,
1OA1–BT216, 1EM1–BT216 Module(s) BT216: Aquatic Plant Science I: Introduction to the
biology, ecology and physiology of aquatic plants Paper No. External Examiner(s) Professor M. Jones Internal Examiner(s) Professor C. Spillane
* Dr D.B. Stengel Dr Z.A. Popper
Answer four questions, at least one from each section Use a separate answer book for each section
No. of Pages 2 Department(s) Botany Requirements None
1.Describe and explain the different life history patterns that occur in the algae. Give a specific example for each type and illustrate your answer with diagrams.
2. Write a short essay on the utilisation of algae. Refer to both microalgae and
macroalgae. 3. Give a brief account of phytoplankton. Include a description of its
communities and its ecological importance, and describe its seasonal growth pattern using graphs.
4. Write concise notes on lichens.
SECTION B 5. What is Kranz anatomy and what type of plants are you likely to find it
occurring in? Illustrate and describe Kranz anatomy and the biochemical pathway that is associated with it.
6. Plants can tell the time reasonably accurately. Discuss the mechanisms which
enable them to tell what time of year and what time of day it is. 7. Plants have small pores or openings in their epidermis known as stomata.
Discuss the function of stomata and explain how opening and closing of stomata is controlled.
8. Give an illustrated account of the role of auxin in phototropism.