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Autumn Examinations 2008 / 2009
Exam Code(s) 2BS1, 2EH1, 2EV1, 2MR1 Exam(s) Second Science (Undenominated)
Second Science (Earth and Ocean Science) Second Science (Environmental Science) Second Science (Marine Science)
Module Code(s) 2BS1–BT216, 2EH1–BT216, 2EV1–BT216,
2MR1–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) * Dr D.B. Stengel Dr Z. 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.Give a brief account of phytoplankton. Include a description of their communities and their ecological importance, and describe their seasonal growth pattern using diagrams.
2. Describe and explain, using examples, different types of (biotic)
interactions between algae (both macroalgae and microalgae) and other organisms.
3. 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.
4. Outline the different types of morphological construction that occur in
the algae and give some examples with diagrams.
SECTION B 5. Compare the pathways of CO2 fixation in C3 and C4 plants. 6. Describe the phenomenon of photorespiration and discuss
mechanisms which aquatic algae and terrestrial plants use to reduce its impact on photosynthesis.
7. Show clearly how the photoconversion of phytochrome may control
floral induction in higher plants.
8. Discuss the adaptations aquatic plants have to reduce anaerobic respiration in their cells and explain clearly why anaerobic respiration is less efficient than aerobic respiration.