Life History Patterns - Aquatic Plant Science - Exams, Exams for Botany and Agronomy. The National Centre for Biological Sciences
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Life History Patterns - Aquatic Plant Science - Exams, Exams for Botany and Agronomy. The National Centre for Biological Sciences

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Life History Patterns, Account of Phytoplankton, Ecological Importance, Seasonal Growth, Interactions Between Algae, Macroalgae and Microalgae, Morphological Construction, Phenomenon of Photorespiration, Impact on Photos...
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Microsoft Word - 2Y A (BT216) 2008-09.doc

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

Instructions:

Answer four questions, at least one from each section Use a separate answer book for each section

Duration 3hrs

No. of Pages 2 Department(s) Botany Requirements None

SECTION A

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.

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