Download Characteristics of Life - Biological Organisation and Design - Exam and more Exams Biology in PDF only on Docsity!
PRIFYSGOL
ABERYSTWYTH
UNIVERSITY
SEMESTER 1 EXAMINATIONS
JANUARY 2009
MODULE BS
BIOLOGICAL ORGANISATION & DESIGN
Time allowed — 2 hours
Read these instructions carefully:
1 Enter your name in the space provided at the top right of this page. If you wish to conceal your identity while the answers are being assessed, fold over and seal down the top right-hand corner as shown (adhesive strips are provided).
2 Your reference/identification number should be written in the space provided at the bottom of the page.
3 Section A consists of short-answer questions, all of which should be attempted. Each question should be answered on the question paper and in the space provided. You may write answers in pencil if you wish. Section A is worth 60 marks. It is recommended that you spend around 75 minutes on this section.
This question paper thus becomes the answer book and it must be handed in complete. Make sure your name is on it and, in the case of anonymous marking, your reference/identification number.
4 Answer Section B in a separate answer book.
Candidate's Reference/
Identification Number
Section A
- List the seven characteristics of life. (3 marks)
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- Complete the gaps showing increasing levels of organisation between cell and organism. (3 marks)
Cell ……………….. ……………………… ..………………… Organism
- Briefly describe how an Amoeba and one other unicellular organism move. (3 marks)
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- How do the muscles and the hydrostatic skeleton of an earthworm assist in its movement? (3 marks)
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- Describe how the lower arm is flexed and extended using muscles. (3 marks)
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- Draw and label a sketch to show the process of binary fission. (2 marks)
- Give 3 advantages of asexual reproduction. (3 marks)
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- Give one major disadvantage of asexual reproduction. (1 mark)
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- Give two advantages of internal fertilization. (2 marks)
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- How can organisms with an exoskeleton grow? (3 marks)
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- What is the major difference between the growth of plants and the growth of animals. (2 marks)
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- Define the term tropism. (1 mark)
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- Distinguish between autotrophic and heterotrophic modes of nutrition. (4 marks)
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- Saprophytic organisms gain nutrients by means of extra-cellular digestion. Explain. (2 marks)
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- Give two examples of holozoic feeders and explain what is meant by the term. (2 marks)
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- The alimentary canal in man, as in many other organisms, is adapted to carry out its function of digestion and absorption. List, giving reasons, 3 of these adaptations. (3 marks)
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- The modern system of classification has five Kingdoms. Name the five Kingdoms. (5 marks)
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