...Biology – Science 206 Energy, Metabolism, and Cells – Photosynthesis & Cellular Respiration John Carter August 11, 2013 1. Explain how photosynthesis and respiration are linked in order to provide you with energy from the food you eat. Photosynthesis can be defined as the process that living organisms such as plants use to translate the sun’s energy into chemical energy. Once the plant has translated the sun’s energy into chemical energy it then releases that energy and makes it readily available to other living things (Vermaas, 2007). Aerobic respiration can be defined as nutrients being converted into useful energy. Respiration allows cells to use the energy stored during the photosynthesis process. It’s the chemical reaction that breaks down the glucose and changes it into a larger amount of Adenosine Triphosphate which is also called ATP (Board, 2012). Plants use sunlight to make ATP for its energy source by creating a series of chemical reactions by producing oxygen as a waste product. Next, animals and human beings eat these plants. The nutrients digested by animals and human beings reverse the process by using the ATP as a source of energy. Our cells use the nutrients from the plants and convert the nutrients in a process that uses oxygen (Board, 2012). Once our bodies have used all the nutrients will be need from those plants our bodies as well as animals release carbon dioxide as waste. Photosynthesis and respiration are both means of converting...
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...for the human body? Using the digestive system and its many organs through the process of digestion and metabolism is how our bodies receive the energy it needs to continue on throughout the day and the rest of our lives. Chemistry then kicks in as food starts its process from entering to leaving the body, through the rate of our metabolism, and also by the transfer of energy. The chemistry in the digestive system is a very important process, because without it there would be no human life. Compared to all other systems in the body, the digestive system is one of the most diverse and important. According to Robert Sullivan the digestive system is a set group of organs whose function is based on the process of turning food, absorbing nutrients for energy and getting rid of the bodies waste (Sullivan, 2008, p.33). The organs that are in the digestive system are the following: esophagus, stomach, small intestine, pancreas, liver, gallbladder, colon or large intestine, rectum and anus (Ballard, 2003). Imagine eating a nice dinner with delicious smelling food. Now, imagine eating the food. Have you ever wondered where your food has gone once you consume it? Through your digestive system where the mass of food undergoes a process called digestion. Digestion is the chemical and physical breakdown of food into forms such as energy or nutrients that can be used by the body’s cells...
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...CARBOHYDRATE METABOLISM Carbohydrates are found as monosaccharides, disaccharides, and polysaccharides or complex carbohydrates. They function in energy storage (starch&glycogen), signaling (glycoproteins and glycolipids, e.g. blood group determinants), fuel the nervous system and muscle (and virtually all cells, although there are distinct cell type specific differences in choice of primary fuel molecule), are parts of nucleic acids (genes, mRNA, tRNA, ribosomes), and as cell surface markers and signaling in glycolipids and glycoproteins, are part of connective tissue (heteropolymers; glycosaminoglycans), cell wall components (cellulose, hemi-cellulose) made of polymers that are enzymatically inert for most mammals to digest (except ruminants that harbor a special digestive tract bacterium with the appropriate cellulase enzyme). The alpha glycosidic bonds found in glycogen and starch is metabolically available to humans. The major source of dietary carbohydrate for humans is starch from consumed plant material. This is supplemented with a small amount of glycogen from animal tissue, disaccharides such as source from products containing refined sugar and lactose in milk. Digestion in the gut converts all carbohydrate to monosaccharides which are transported to the liver and converted to glucose. The liver has central role in the storage anddistribution within the body of all fuels, including glucose. Glucose in the body undergoes one of three metabolic fates. First it...
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...Metabolism: Transformations and Interactions I. Chemical Reactions in the Body Plants use the sun’s energy to make carbohydrate from carbon dioxide and water. This is called photosynthesis. Humans and animals eat the plants and use the carbohydrate as fuel for their bodies. During digestion, the energy-yielding nutrients are broken down to monosaccharides, fatty acids, glycerol, and amino acids. After absorption, enzymes and coenzymes can build more complex compounds. In metabolism they are broken down further into energy (ATP), water and carbon dioxide. A. Metabolic reactions take place inside of cells, especially liver cells. B. Anabolism is the building up of body compounds and requires energy. C. Catabolism is the breakdown of body compounds and releases energy. D. The Transfer of Energy in Reactions—ATP 1. A high-energy compound called adenosine triphosphate (ATP) is made. 2. Coupled reactions are chemical reactions that occur simultaneously. E. Enzymes and coenzymes are helpers in reactions. 1. Enzymes are protein catalysts that cause chemical reactions. 2. Coenzymes are organic molecules that function as enzyme helpers. 3. Cofactors are organic or inorganic substances that facilitate enzyme action. II. Breaking Down Nutrients for Energy The breakdown of glucose to energy starts with glycolysis to pyruvate. Pyruvate may be converted to lactic acid anaerobically (without oxygen) and acetyl...
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...Area of the cell | Function of the cell | Cell-Cells are the basic building blocks of all living things. They provide structure for the body, and also take in nutrients from food and convert those nutrients into energy and carry out specialized functions. | In the human cell, firstly we have the red blood cells; these carry oxygen around the body from our lungs, to the rest of our body. The nerve cells carry nerve impulses to different parts of the body which carry electrical signals around the body. The female reproductive system function (in the cell) is to join with the male cell and providing food for the new cell’s that has been formed. | Organelle-Organelles are tiny structures that perform very specific functions within the calls. The term is a reference to organs, and the way these structures operate in cells, to the way organs function in the body. Each has its own task, such as producing energy. | Organisms are composed of cells, and these cells have specific structures within in them and this allows them to carry out their functions. The fine detail of the cell (which could be revealed by an electron microscope) this is called the cell’s ultrastructure. Organelles perform different functions within a cell, and this is called the division of labour. | Nucleus- The nucleus is the central and most important part of an object, movement, or group forming the basis for its activity and growth. It help’s controls eating, movement and reproduction. The nucleus is a...
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...Metabolism By Jason Anderson Biology 101 23 Apr 2011 Outline I. What is metabolism? A. Human Basal Metabolism. II. Contributing factors that slow down human metabolism. A. Hereditary genetics. B. Improper diet and exercise. C. Aging. III. Ways to speed up human metabolism. A. Proper diet and exercise. B. Supplements. IV. All living organisms in the world need to produce energy in order to grow, move, multiply and exist. Several chemical reactions need to occur for this energy to be produced. All of this energy is stored in the cell molecules until it is needed. The cells conserve its resources by producing only what is needed. When the cell molecules give up this energy to be used it is referred to as metabolism. The Merriam-Webster Dictionary (11th Edition) defines metabolism as the process by which the substance of plants and animals incidental to life is built up and broken down. Metabolism differs from that of plants to that of animals, more specifically humans. In order for scientists to accurately evaluate human metabolism they needed to develop a benchmark for their testing. In the early 20th century studies were conducted on the human basal metabolism rate of which the result was the basal energy expenditure (BEE). The BEE was the standard or control that is used to measure other people’s metabolism rates (Frankenfield, Muth, Rowe). By establishing a standard it was now easier...
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...relation to energy metabolism in the body In this assignment I will be explain the physiology of two named body system in relation to energy metabolism in the body. The system that I have chosen is the respiratory system and the digestive system. The respiratory system is where the exchange of gases in the body this is where the oxygen enters into the blood. The lung is the main organ which the lungs intakes oxygen into the body and the carbon dioxide is exported out. The respiration system is made up of many organs which help us to breathe properly. The digestive system is where the organs inside the body break down the food and convert it to energy and nutrients that are needed in the body. The stomach is a tube shaped which has all the food and liquid that we have ate and it makes around the body and it is a mainly long twisted tube that starts from the mouth and comes all the way down to the anus and into few organs such as the pancreas and the liver which stores any chemicals accessible. The metabolic rate...
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...it helped you better understand how the scientific method is used to create hypotheses and experiments. [pic] 2. Find a media piece—article, video, presentation, song, or other—that recognizes the fundamental concepts of chemistry in biology. Include the link or reference citation for the piece and describe how it helped you better understand how fundamental concepts of chemistry affect biology. [pic] 3. Find a media piece—article, video, presentation, song, or other—that describes the energy metabolism of cells. Include the link or reference citation for the piece and describe how it helped you better understand the energy metabolism of cells. [pic] 4. Find a media piece—article, video, presentation, song, or other—that compares structures and functions of different cell types. Include the link or reference citation for the piece and describe how it helped you better compare structures and functions of different cell types. [pic] 5. Discuss what life means to you after completing questions 1–4. [pic] ----------------------- “Introduction to the Scientific Method.” Is the refrence I decoded to uses for this portion of the assignment. This article helped me to understand how the scientific method is used by outlining the steps of the method itself. The article also defines what a hypothesis is and how it should be formed in relation to the given observation. The article also...
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...of chemistry in biology. Include the link or reference citation for the piece and describe how it helped you better understand how fundamental concepts of chemistry affect biology. [pic] 3. Find a media piece—article, video, presentation, song, or other—that describes the energy metabolism of cells. Include the link or reference citation for the piece and describe how it helped you better understand the energy metabolism of cells. [pic] 4. Find a media piece—article, video, presentation, song, or other—that compares structures and functions of different cell types. Include the link or reference citation for the piece and describe how it helped you better compare structures and functions of different cell types. [pic] 5. Discuss what life means to you after completing questions 1–4. [pic] ----------------------- I found a YouTube video titled “energy and Metabolism explained”. The video explains how the body is constantly at work with repairing cells and building new ones. This action requires energy that the body converts from the chemical...
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...Energy Metabolism of the Canis familiaris Kristy Stewart 17153535 1. Introduction Understanding where, and how the energy that enables life to exist comes from, known as energy metabolism (Cox and Nelson 2013), is integral to understanding health and nutrient needs for organisms. The study of energy metabolism is applicable in many areas; medicine and agricultural livestock health and production are two major applications for this discipline of study. There are different forms of energy metabolism throughout organisms on this planet, however many share the same basic cycles and functions at a metabolic rate. For example, a practically universal central pathway for the metabolism of glucose is glycolysis; the break down of glucose to attain metabolic energy to do biological work (Cox and Nelson 2013). Energy is obtained by harvesting the energy trapped in chemical bonds of food molecules (nutrients). Depending on the nutrient type an organism consumes, the energy metabolism pathways alter slightly. The major constituents of food are carbohydrates, lipids and proteins (Da Poian et al. 2010). This discussion paper will look at the energy metabolism of the Canis familiaris’ (dog) energy metabolism and regulation. 2. Diet, digestion and absorption The dog is a carnivore and consumes a diet consisting mainly of fat and protein with a small amount of carbohydrates (Edwards et al. 2011). The digestive tract of the dog is relatively simple compared to herbivores,...
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...MICHAEL AWUAH DENKYIRAH BIO/101-PRINCIPLES OF BIOLOGY NOVEMBER 16TH, 2013. JEBA INBARASU 1. Find a media piece—article, video, presentation, song, or other—related to the scientific method, creating hypotheses, or designing experiments. Include the link or reference citation for the piece and describe how it helped you better understand how the scientific method is used to create hypotheses and experiments. Answer: The scientific method is the best way yet discovered for distinguioshing the truth from lies and delusions. The scientific method is just a list of steps that one needs to follow when solving a problem. The procedures for scientific methods are: a. Questions and Observation: One must observe some aspect of the universe and ask questions about it. Do research about the observation. b. Experiment and Evidence: Invent a tentative description, called a hypothesis that is consistent with what you have observed .Use the hypothesis to make guesses or predictions .Test those predictions by experiments or further observations and modify the hypothesis in the light of your results. c. Analyzing the date and draw conclusions from the experiments d. Publishing our final results into journals or a display board for other professionals to examine our scientific work. When consistency is obtained the hypothesis becomes a theory and provides a...
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...Obesity isn’t classified as an eating problem anymore. It is more than that a person’s biology plays a big roll. Cells and hormones play a big roll on how big you are and how your body regulates energy. Food equals energy and the body stores that energy in fat cells and uses the energy as needed. The metabolism breaks down that food and uses the energy generated from that food for everyday activities such as walking, talking, thinking. The faster ones metabolism is the more efficient they are at breaking down food and using the energy. The slower the metabolism the more energy gets stored and gets turned into fat cells and not used. The hormone leptin, which is produced in fat cells, sends signals to the brain telling it that its levels are dropping which means the cells are reducing. When this occurs the brain processes that information as starvation and sends signals back to slow down the metabolism and store as much energy as possible. There are people who eat less than other but still gain weight. That’s a biological problem. There are areas in the brain research has found that if damaged can lead to obesity. One such area is the ventromedial hypothalamus and the surrounding axons. If this area in the brain is damaged at then this can lead to overeating and more storing of fat cells. Research conducted on rats at the University of Nebraska looked at this area in the brain and how it affects food intake and body weight. With damage to that area the rat nearly tripled in size...
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...Forms of energy: There are various forms of energy needed by the body, such as: heat, sound, light and chemical. Heat is a thermal energy. Heat is able to be transferred to different places through a material, through a moving liquid or gas, and through radiation. Surfaces which are dark are better at absorbing heat energy heat energy than light serves which are shiny. Sound is the movement of energy through substances in longitudinal waves. Sound is produced when a force causes an object or substance to vibrate this is when the energy is transferred through the substance in a wave. The energy in sound is far less than other forms of energy. Light is a form of energy which our sense of sight can detect. It is made of electro-magnetic radiation and travels in a straight path. The speed of light travels at about 300,000 kilometres per second, meaning that nothing travels faster than light. Chemical energy is an energy that is stored in chemicals, such as sugar and gasoline. Chemical energy is the energy in a substance that can be released by a chemical reaction. Laws of energy conservation: The Law of Conservation of Energy states that energy cannot be created or destroyed, just transformed from one form to another. These forms can include kinetic and potential energy as well as light, heat and sound. Energy can also be transferred between objects. Since energy cannot be created or destroyed, the amount of energy present in the universe is always the same. It is simply...
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...What is its role in the cells? Cells use carbohydrates as their main source of energy; however, glucose is the only form that can enter the cell and actually gets used. Other types of carbohydrates, such as fructose, lactose, sucrose… must first be broken down into glucose before being used by the cell. To maintain a constant supply of energy, the level of glucose in the blood must be balanced. Too many carbs can lead to obesity and blood pressure spikes. Some of the carbohydrates that aren't used up, are stored as glycogen and the rest are converted into fat. At the cell level, all carbohydrates are exactly the same, either getting used, stored as energy or used for cell processes. The other things you eat determine how many carbohydrate gets...
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...Anatomy and Physiology for Health and Social Care Task 4- P4 Energy within the human body can be associated with the function of different body systems, this comprises of respiratory, cardiovascular and the digestive system. The different body systems that I will be talking about are the cardiovascular and respiratory system. There are many different phrases and words used when describing and explaining how the body systems are linked to energy metabolism. The meaning of metabolism is the chemical process or reaction that takes place within a living organism in order to maintain life. Some of the chemical reactions require breaking down molecules while at the same time releasing energy- this is the definition of the catabolic reactions. Instead of breaking down molecules the process of anabolism is to build intricate molecules from simple substances by using energy which again acts as a catalyst. There are many different activities involved in supplying energy to the variety of cells in the body. The first system that I will be talking about is the respiratory system. The main job that constantly takes place is the system refreshing the lung oxygen and the disposal of waste substances and products, this often includes water and carbon dioxide. The removal of these waste products and the refreshing of the lungs happen during the process of what we call breathing. The oxygen that has been dissolved is transported to cells around the body; the transportation method is through the slim...
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