Exam: 46.4‚45‚47‚48 Lecture outline for the zoology unit revised 2010 Introduction to animal form & function and regulation of TB (ch. 40 & Concept 42.4) This first reading assignment reviews 5 major principles re living organisms: 1. Physical laws & the environment constrain the size & shape of organisms. 2. Form & function are correlated at all levels of organization. 3. Chemical energy in food is used to sustain form & function. 4. Many animals (& other organisms) regulate
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mouth? Cheeks‚ hard and soft palate‚ tongue 6. What is the name of the cone shaped process that hangs down from the roof of the mouth? What is its function? Superior birder: a. uvula b. closes off nasopharynx during swallowing. 7. How are the major salivary glands distinguished on the basis of location? Parotid glands: located inferior and anterior to the ears‚ between the skin and masseter muscle; submandibular glands: located beneath the base of the tongue in the posterior part of the floor of the
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LAB PRACTICAL 2 * Skin * Comprised of all 4 main tissue types * Epithelial * Connective * Muscular * Nervous * Part of the integumentary system * Function: * Protection * Body temperature regulation * Vitamin D synthesis * Sensation to touch‚ pressure‚ pain and temperature * 2 main regions: * epidermis * 5 strata * corneum
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small enough pieces so that i can fit down the throat. As the teeth do their work‚ saliva mixes with the pieces of me‚ making me soft and moist. The saliva contains a chemical called salivary amylase‚ which starts breaking down complex carbohydrates‚ and another called mucin‚ which helps to soften the food. The amylase enzymes turn the starch molecules found in me into glucose. The glucose is used by cells to give people energy. oklahoma4h (2015) ptonthenet (2015) bbc.co.uk (2015) The tongue which
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ASBiology and Disease * Causes of disease * Pathogens Disease suggests a malfunction of the body or mind which has an adverse effect on good health For a micro-organism to be considered a pathogen it must * Gain entry to the host * Colonise the tissue of the host * Resist the defences of the host * Cause damage to the host tissues Pathogen Infection Disease Entry pathways * Gas exchange system * Digestive system Natural defences * Mucous layer
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food into energy and break down the non-nutritive components into waste to be excreted. The mouth Anatomy o Contains the lips‚ cheeks‚ palate‚ tongue‚ teeth‚ salivary glands‚ masticators/facial muscles and bones. o Anteriorly bounded by the lips. Physiology o Important for the mechanical digestion of food o The saliva contains SALIVARY AMYLASE or PTYALIN that starts the INITIAL digestion of carbohydrates The Esophagus Anatomy o A hollow muscular tube o Length - 25cm o Located in the mediastinum‚ anterior
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Grade 10 Biology Revision Guide Characteristics of Living Organisms Nutrition: Respiration: Excretion: Sensitivity: Movement: Homeostasis: Reproduction: Growth: Taking in food for growth and releasing energy. Burning glucose to release energy. Removing waste material like urea formed during chemical reactions. Responding to changes in the environment. Transport inside cells and moving the body. Control their internal conditions. Increasing the number of organisms. Increasing the number of cells
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Zachary’s Story Unit 6 Case Study 1 AP2630 Rhonda Carter July 27‚ 2015 A. An ulcer starts by eroding the mucosa of the G.I. tract wall. What functions of digestion and/or reabsorption might be lost if this layer is no longer functional? What functions will be compromised if the ulcer eats through the submucosa and then the muscularis? Absorption would not happen correctly some of the ingested and secreted may seep out of the lumen. This also could create a pathway of entry for pathogens
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teeth‚ turned over and mixed with saliva by the tongue. The sensations of smell and taste from the food sets up reflexes which stimulate the salivary glands‚ saliva is produced by the salivary glands and is released into the mouth. Saliva begins to break down the food‚ moistening it and making it easier to swallow and contains a digestive enzyme called amylase which breaks down the carbohydrates (starches and
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the stomach. d. Stomach—just below the diaphragm on the lefi side of the body. e. Small intestine—extends from the stomach to the large intestine. f. Large intestine—extends from the small intestine to the anus. Accessory organs include: a. Salivary glands—located in the oral cavity. b. Liver—lies just below the diaphragm on the right side of the body. c. Gallbladder—lies on posterior side of the liver. d. Pancreas—located behind the stomach‚ attached to the duodenum. 3. Contrast the composition
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