PPT-1 Biology Year 9 Digestion and Food

2 The digestive system The digestive system converts foods to simple substances that can be absorbed and used by the cells of the body It is composed of the mouth pharynx oesophagus stomach small intestine and large intestine and is aided by several accessory organs liver gall bladder and pancreas. By Erin and Courtney . . Evolution. Two types of digestion. Intracellular: Break down of macromolecules takes place within the cell.. Extracellular: Break down of macromolecules takes place outside of the cell. By Hannah, Madi, and Faith. What is the digestive system. It breaks down food into smaller substances. The mouth. Chemical digestion. Mechanical digestion. Taste buds. The epiglottis. Chemical digestion. Human Biology. :. Digestive System Part I. Science and Mathematics Education Research Group. Supported by UBC Teaching and Learning . Enhancement . Fund . 2012-2015. Department of . Curriculum and Pedagogy. Dr. . Jagdish. . Kaur. P.G.G.Govt. . College, Sector 11. CHANDIGARH. Intracellular . digestion. Intracellular digestion . Simple type of digestion which occurs inside the food vacuoles in the cytoplasm of the cell.. WHAT YOU WILL LEARN IN THIS UNIT:. Identify major structures and functions of the human digestive system from a diagram, model, or specimen. .  . Describe the processes of mechanical digestion that take place at various sites along the alimentary canal. 2. Key Concepts:. Animals are heterotrophic!. Nutritional needs – what animals get from food. Food processing. The human digestive system. 3. Critical Thinking. Is this animal approaching the fruit or the flower???. mechanical. and . chemical. . processes.. This occurs in the Alimentary Canal…. Alimentary canal . – long muscular tube that runs from the mouth to the . anus. . Peristalsis . – muscular movement of food. The process in which food is . broken down . into smaller . molecules. that can be . absorbed. into the body and are . usable by cells. .. Five Main Digestive Processes. Ingestion. – Eat; . . Intaking. . Kaur. P.G.G.Govt. . College, Sector 11. CHANDIGARH. Intracellular . digestion. Intracellular digestion . Simple type of digestion which occurs inside the food vacuoles in the cytoplasm of the cell.. The Digestive System (3:38). http://www.youtube.com/watch?v=P5lyQUtq1KQ. Absorption. Food is broken down in the digestive tract or . ALIMENTARY CANAL.. Nutrients get from the digestive . tract into the transportation system that carries them to cells throughout the body. F. Boué, Maja Napieraj, A. Brûlet . (Lab Léon Brillouin). E. Lutton, A. Boire . (INRAE-MIA Paris, BIA-Nantes). F. Jamme , J. Perez, . T. . Bizien . (SOLEIL) . M. . Ströbl. . (Paul Scherrer . Inst. 1. Chapter 3. Nutrient Digestion and Absorption. 2. Food Nutrient Digestion and Absorption. The Digestive Process. Digestion = mechanical and chemical food breakdown of food for absorption into blood for use, storage, or chemical change. Context and Introduction to Unit. In this unit pupils should understand the content of a healthy human diet: carbohydrates, lipids (fats and oils), proteins, vitamins, minerals, dietary fibre and water, and why each is needed. Carryout calculations of energy requirements in a healthy daily diet. Understand the consequences of imbalances in the diet, including obesity, starvation and deficiency diseases. Outline the tissues and organs of the human digestive system, including adaptations to function and how the digestive system digests food (enzymes simply as biological catalysts. Science and Mathematics Education Research Group. Supported by UBC Teaching and Learning . Enhancement . Fund . 2012-2015. Department of . Curriculum and Pedagogy. FACULTY OF EDUCATION. a place of mind.