Proteins Are the basic materials of every body cell. Body cells are constantly wearing out. As a result‚ they are continuously in need of replacement Of the six nutrients group‚ only proteins can make new cells rebuild tissue. By the age of 4 years‚ body protein content reaches the adult level of about 18% of body weight. An adequate supply of proteins in the daily diet is essential for the maintenance of health. The word protein is a Greek derivation and means “of first importance”. Composition
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Digestive System Study Guide 1. Define the term digestion and explain its significance. The chemical and mechanical process of breaking down food and its absorption. Its essential to maintaining life. 2. Distinguish between mechanical digestion and chemical digestion. Chemical digestion is where complex food molecules are broken down to the basic building blocks by enzymes. Mechanical digestion is chewing‚ churning and segmentation. 3. Discuss the five digestive processes that overview the many functions
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Cystic fibrosis is a crippling disease that affects thousands of people worldwide. Cystic fibrosis is an inherited disease of the secretory glands that causes persistent lung infections and limits the ability to breathe over time. It causes cells to produce thick and sticky mucus‚ sweat‚ and digestive juices that block airways‚ ducts‚ and passageways. There is no cure‚ but there are ways to manage symptoms. According to the World Health Organization‚ the occurrence of cystic fibrosis varies across
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FOOD AND NUTRITION & The Digestive System Lecture No. 10 FOOD AND NUTRITION Food Food is any edible material that supports growth‚ repair and maintenance of the body. Foods are substances containing nutrients Nutrients are needed for: • Cell repair • Cell growth • Energy • Protection Food Classification of foods: A. According to the source of origin 1. Animal foods 2. Plant foods B. According to the calorigenicity 1. Calorigenic foods 2. Non-Calorigenic foods C. According to the main
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Digestive System Notes 2. List the major parts of the alimentary canal; then separately list the accessory organs of the digestive system. a. Mouth—the oral cavity. b. Pharynx—extends from the back of the nasal cavity to the top of the esophagus. c. Esophagus—extends from the pharynx to 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
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The following are examples of frequently missed questions from the unit exams. The questions are similar in theme to the ones missed however were taken from blackboard and are not exactly worded like the exam questions. They are meant to act as a study guide only. Please do not have the misconception that these questions will be the exact questions on the final. What you should do is to use these questions as a guide and to research not only why the answer is correct but also why the other answers
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General Biology II (BIOL 2061) – Spring 2013- Hartley Unit 5 – Animal Form & Function‚ Metabolism and Digestion I. Learning Goals – Note that there are both content and competency goals in this course. II. Reading Assignment with Comprehension Questions I suggest you complete the comprehension questions as you read each chapter or directly after. Read the chapters before coming to class. III. Lecture Note Template You can use this template to fill in your lecture notes
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Enzyme Inhibition Many drugs exert their action by inhibition of an enzyme activity in the body. If the activity of an enzyme is vital to the cell or organism‚ then inhibition may lead to death of the cell or organism. It is now possible to design new drugs which are enzyme inhibitors once a target enzyme has been identified. Types of Inhibitors A) Reversible Inhibitors: The effect of the inhibitor is instantaneous‚ and it can be removed from the enzyme by dialysis so that the enzyme activity
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proteins: • Storage of ions and molecules – myoglobin‚ ferritin • Transport of ions and molecules – hemoglobin‚ serotonin transporter • Defense against pathogens – antibodies‚ cytokines • Molecular motors – myosin‚ kinesin • Biological catalysis – chymotrypsin‚ lysozyme – Many more Interaction with Other Molecules • Reversible‚ transient process of chemical equilibrium: A + B AB A + B • A molecule that binds is called a ligand (typically a small molecule) • A region in the protein where the ligand
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SC/BIOL 2020.03 Biochemistry Midterm #1 Name: Student ID: Feb 7th‚ 2013 Time: 1 hr and 15 min This test has multiple choice: 24 Marks. Fill in the blanks: 10 Marks Peptide structure: 6 Marks There are a total of 10 pages of this exam. You are allowed to use a non-programmable calculator. For multiple choice: Choose the BEST answer and indicate your choice on the scantron. Please use a pencil. 1 1. Which of the following weak interactions is NOT due to differences in electrical
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