Bio Work Plans

Grade 9 Biology Work Plans (to be completed 5th – 15th November 2009) Textbook: Biology – A Course for O Level by Lam Peng Kwan & Eric Y K Lam

Read Chapter 5 Nutrition, pages 55-80, and answer the following questions (copy the questions and answer them in your notebooks): Q1. What are the chemical substances that make up a) carbohydrates b) fats c) proteins Q2. What are the principle sources of carbohydrates, fats, proteins, vitamins C and D, calcium and iron, fibre (roughage) and water? Q3. Describe the deficiency symptoms of vitamins C and D, and calcium and iron. Q4. What do you understand by a balanced diet? Q5. Very important! Read from Chaper 5 and click the following links to view food test videos on YouTube: Starch (iodine in potassium iodide solution): http://www.youtube.com/watch?v=J5eaJc854uQ Reducing sugars (Benedict’s solution): http://www.youtube.com/watch?v=Lt7RCIfudYQ Protein (biuret test): http://www.youtube.com/watch?v=x6NDiSHsn08




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Grade 10 Biology Work Plans (to be completed 5th – 15th November 2009) Textbook: Biology – A Course for O Level by Lam Peng Kwan & Eric Y K Lam

Read Chapters 15 Hormones & 16 Drugs, pages 230-253, and answer the following questions (copy the questions and answer them in your notebooks): Q1. What is a hormone, where is it produced, how is it transported and where is it ultimately destroyed? Q2. Explain the effects of adrenaline on the human body and give examples of situations in which it may be released. Q3. Describe the signs of diabetes mellitus and its treatment. Q4. What is the definition of a drug? Q5. a) What are the effects of heroine abuse on the body? b) How is it related to crime and infection? Q6. What are the physical and social effects of excessive alcohol consumption? Q7. a) What are the effects of tobacco smoke and its major toxic components (nicotine, tar, carbon monoxide) on health? b) How is it associated with lung cancer and heart disease? d) How can smoking during pregnancy be harmful? d) Why is smoking no longer socially acceptable?




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Grade 11 Biology Work Plans (to be completed 5th – 15th November 2009) Textbook: Biology – A Course for O Level by Lam Peng Kwan & Eric Y K Lam

Read Chapter 20 Reproduction in Plants, pages 309-336, and answer the following questions (copy the questions and answer them in your notebooks): Q1. What is mitosis and what are its functions? Q2. What is asexual reproduction? Give one example of its commercial application in plants. Q3. What is meiosis and what is its function? Q4. Define sexual reproduction and fertilization Q5. What are the differences between an insect-pollinated and a windpollinated flower? Q6. Give a named example of one wind-pollinated and one insect-pollinated flower. Q7. What are the functions of sepals, petals, anthers and carpels? Q8. What is pollination and what is the difference between self-pollination and cross-pollination? Q9. What are the different parts of a seed? What is the pericarp? Q10. What are the different methods of seed and fruit dispersal and how is the structure of the seed or fruit adapted to its method of dispersal? Q11. Give a named example of one wind dispersed and one animal dispersed fruit or seed. Q12. State three environmental conditions that affect the germination of seeds. Q13. How are enzymes used in germination of seeds?

PS There will be a test on Chapter 22 Heredity, pages 357-387, when classes resume.




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