Enzymes and metabolism 4.1 Metabolism (Book 1A‚ p. 4-3) Metabolism (新陳代謝) refers to the (1) _______________ of the chemical reactions that take place in an organism to keep it alive. Catabolism (分解代謝) Anabolism (合成代謝) All the (2) _______________ reactions within an organism (3) _______________ energy All the (4) _______________ reactions within an organism (5) _______________ energy 4.2 Properties and actions of enzymes (Book 1A‚ p. 4-4) A What is the role of enzymes in metabolism? (Book 1A
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9/22/2011 Basic Chemistry Why are we studying chemistry? • Biology has chemistry at its foundation Elements • All matter composed of basic substances called elements • Living organisms require about twenty of the known elements Together‚ carbon‚ hydrogen‚ nitrogen and oxygen make up 95% of the elements found in the body. Atoms • All elements made of tiny particles called atoms • Made up of: – Nucleus • contains protons (+ charge) and neutrons (no charge) – Outside
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from their surrounding to: Build new biological molecules Grow in size Repair their parts Produce offspring All organisms are composed of the same macromolecules (proteins‚ fatty acids/lipids‚ carbs and nucleic acids) All organisms engage in metabolism Marinating internal balance in response to the environment is known as homeostasis The cell is an organized chemical system that includes many specialized molecules surrounded by a membrane The cell is the smallest until with the capacity to
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Ch. 1 Prokaryotes = bacteria ‚ archaea Eukaryotes = Fungi‚ protozoa ‚ algae (Growth:: Mitosis有絲分裂) Bacterial cell → Bacillus(rodlike) ‚ cocus (spherical)‚ spiral (curved) *P.S. 有時會star-shaped or square → 出現既形式: pairs‚ chains‚ clusters cell walls of bacteria → peptidoglycan (carbohydrate & protein complex) cell walls of plant and algal cell → cellulose Growth::Binary fission = bacteria reproduce by dividing into two equal cells bacteria 吸收nutrients from dead / living organisms/ photosynthesis
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Insomnia‚ a sleep disorder‚ is characterized by arduousness falling or staying asleep. This disease affects individuals nationally; more than 50 percent of the population undergoes this disease and teenagers and younger children comprise of about 25 percent of the population suffering from insomnia‚ making it a substantial disease to be indoctrinated about. (“Insomnia Facts”) Insomnia presents itself as a compulsory topic in a student’s edification since this subject impacts slumber patterns of the
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Unit 5 – Anatomy and Physiology – Assignment 3 In this assignment I will outline the anatomy and physiology of these three body systems; The Cardiovascular system‚ The Respiratory system and The Digestive system. The Cardiovascular System The cardiovascular system‚ also known as the circulatory system‚ consists of the heart‚ blood vessels and approximately 5 litres of blood. 55% of the blood is straw coloured yellow and 45% of the blood is made up of red and white blood cells and tiny particles
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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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Anatomy & Physiology December 16‚ 2012 Anatomy and Physiology 1 Final Exam Define/Describe the following terms as completely and detailed as you can: 1. Inflammation- Inflammation is the bulging of skin‚ organs‚ or other body parts due to fluid buildup caused an injury. The fluid rushes to the injured area and that is what makes the puffiness. 2. High Fructose Corn Syrup- (HFCS) Composed of corn and lab chemicals. HFCS is found in processed foods such as salad dressing and soda. Your body
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Aer- Aerobic Air Ailment Food Hyperailmentation Alb-(alba) White Quercus alba Arbor Tree-like Arbor day Arachnid Spider Arachnophobia Amin (Amino) NH2 Amino acid Amyl Starch Amylase An- Without Anaerobic Ana- Up Anabolism Angio- A vessel Angiogram -angium Container Sporangium ante before Antebrachium Anti Against Antibiotic Api Tip Apex append to hang something Appendicular Arche Old (female) Archegonium -ase an enzyme Lipase Aud to hear
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is the main regulator of the metabolism and storage of carbohydrates‚ fats and protein. Insulin allows glucose to enter cell membranes in most tissues (Brown & Edwards 2008). An increased blood glucose level is the main stimulus of insulin synthesis and secretion (Brown & Edwards 2008). Insulin is inhibited by low glucose levels along with glucagon‚ somatostatin‚ catecholamines and hypokalaemia (Brown & Edwards 2008). A major response of insulin on glucose metabolism occurs in the liver‚ where the
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