PKUESJX Grade 10 Biology Pre-IB Curriculum Outline

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1 PKUESJX Grade 10 Biology Pre-IB Curriculum Outline (adapted from IB Biology SL) Stuart Gilmer

2 Introduction The Grade 10 Biology Pre-IB course encompasses carefully selected content from the Standard Level IB programme, with an emphasis on skills acquisition in order to scaffold progression towards the IB Diploma in Grade 11/12. This course will advance pupils understanding of concepts in which they should already be familiar with, working to develop the breadth and depth of knowledge to provide a solid preparation for the demands of the IB Diploma programme. Course Content Overview As with Physics and Chemistry, the Biology course will run for 12 weeks and is split into three units; Unit One - Cells, Unit Two - The Chemistry of Life and Unit Three - Human Health & Physiology, details of each can be found on the pages which follow. Student knowledge will be assessed internally through homework and end of topic tests. Skills acquisition will be assessed through two experimental reports and a homework assignment on the Use of Enzymes in the Food & Beverage Industry, which will be introduced during Unit Two.

3 Unit 1 Cells Cells are the basic units of life, they can exists either on their own, as found in many prokaryotic organisms like bacteria, or they can be part of a complex system of cells working together, such as those found in eukaryotic organisms like plants and animals. All cells share a number of common properties such as storing information in genes made of DNA and having a cell membrane composed of proteins and a double layer of lipid molecules, separating the cells internal environment from external conditions while controlling the flow of materials into and out of the cell. 1. Cell Theory 2. Prokaryotic Cells 3. Eukaryotic Cells 4. Membranes 5. Cell Division - Describe what is meant by The Cell Theory. - Investigate the structure of cells using a light microscope. - Calculate magnification and actual size. - Describe what is meant by Unicellular and multicellular organisms. - Explain the limitations on cell size. - Develop skills in drawing prokaryotic and eukaryotic ultrastructure based on electron micrographs. - Describe the structure and function of the cell membrane. - Explain the movement of molecules into and out of a cell including diffusion, osmosis and active transport. - Explain the importance of cell division. - Describe the stages of cell division. Pract: From Cells to Individuals. Pract: Using microscopes Pract: Analysing electron micrographs. Pract: Analysing electron micrographs. Pract: Osmosis in Eggs *Pract: Osmosis in Potatoes Pract: Analysing mitotic diagrams. Homework 1 *Experiment Report 1 Homework 2 & End of Unit Test Cells Practical Kits 1 & 2 Cells Practical Kit 3 Cells Practical Kit 4 Homework 1 Worksheet Cells Practical Kits 5 & 6 Experiment Report Template Cells Practical Kit 7 Homework 2 Worksheet Cells Unit Test

4 Unit 2 The Chemistry of Life Water is the medium for life. Living organisms control their composition by a complex web of chemical reactions that occur within this medium. Compounds of carbon, hydrogen, oxygen and nitrogen are used to synthesise complex molecules required for growth and storing energy. Proteins act as enzymes which have a diverse range of biological functions. 1. Properties of Water - Describe the bonding present in water and it s properties. - Explain what is meant by the terms hydrophilic and hydrophobic. - Give examples of carbohydrates. - Define what is meant by the terms saturated, monounsaturated and polyunsaturated. - Describe the formation of proteins by condensation reactions between amino acids. - Give an account of the diversity of amino acids and polypeptides. - Explain the three dimensional structure and function of proteins. - Describe the structure and function of enzymes. - Identify factors which can affect enzyme activity. - Define what is meant by the term denaturation. 2. Carbohydrates - Describe the formation of polysaccharide polymers by condensation reaction. Pract: Comparison of Chemical Composition Various - Describe the formation of triglycerides by condensation reaction 3. Lipids Foods. between fatty acids and glycerol. 4. Proteins & Enzymes *Pract: Effect of Pectinase on yield of fruit juice. Pract: Optimum temp/ph of pepsin & Trypsin. Homework 3 *Assignment End of Unit Test Chemistry of Life Practical Kit 1 Chemistry of Life Practical Kit 2 & 3 Assignment Pack

5 Unit 3 Human Health & Physiology Research into human physiology is the foundation of modern medicine. Body functions are carried out by specialized organ systems. The structure of the small intestine allows it to move, digest and absorb food. The blood system continuously transports substances to cells and collects waste products. The skin and immune system resist the continuous threat of invasion by pathogens. The lungs are actively ventilated to ensure that gas exchange can occur passively. The body maintains its internal environment and provides the conditions necessary for survival and reproduction. 1. Digestion & Absorption of Molecules 2. Transport Systems - Describe the structure of the digestive system. - Explain what is meant by the term peristalsis/describe the process. - Explain the importance of bile, gastric and pancreatic juices. - Give an account of digestion & absorption in the small intestine. - Describe the structure of the villi/adaptations for absorption. Give an account of the structure of the transport system to include; Heart, Veins, Arteries, Capillaries & Blood. Pract: Effect of Amylase on Starch Digestion. *Pract: Effect of Activity on Heart Rate & Recovery Time. Pract: Dissection of Mammalian Heart. Pract: Mouse Dissection. *Experiment Report 2 Homework 4 1 2, 3 & 4. Homework Worksheet Experiment Report Template 3. Gas Exchange - Describe the structure of the ventilation system to include trachea, bronchi, bronchioles and alveoli. - Explain the role of type 1 & 2 pneumocytes. Pract: Working with Spirometers Homeostasis & Excretion. 5. Reproduction 6. Pathogens & Disease - Describe the role of muscles in the ventilation system. - Explain how blood glucose concentration and temperature are regulated, includ-ing named hormones. - Identify the structure of the male and female reproductive systems. - Give an account of reproduction in humans from intercourse to birth. - Explain the process of sex determination. - Identify the different types of microbe including bacteria, viruses and fungi. Pract: Thermoregulation. Homework 5 End of Unit Test 6 - Describe how the body defends against infection and the use of antibiotics.

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