The food and drink goes into our stomach and from there it is digested, absorbed, then either stored or converted into energy by chemical reactions in our body, therefore food is chemical energy. https://uk.answers.yahoo.com/question Glucose + Oxygen = Carbon Dioxide + Water + Energy In other words, glucose and oxygen are turned into carbon dioxide and water releasing energy. http://purchon.com/chemistry/?page_id=223 The sum of all chemical reactions within a living organism is known as metabolism. The two body systems I am going to explain in detail are Respiratory and Circulatory and their role in producing energy: Respiration Respiration involves breathing. External respiration which is also known as breathing refers to the inhalation of oxygen from the air into the lungs and expelling carbon dioxide from the lungs to the air.
Supplying enough energy to support the many functions of the body at work and play is one of the chief functions of food. This energy comes from the fats, carbohydrates, and proteins in the food you eat. Without energy stored in our bodies- our bodies would not function. It is required for the molecules to move in and out of the cells, for breaking down large molecules and also foe building new ones. The role of energy in our body consists of the breakdown of large, complex molecules to the simplest form to release energy, this is called catabolism.
The energy helps us to move our muscles, walk and talk; without the energy in our body we would not be able to do basic things. “It cannot be created or destroyed but can only be changed from one type to another.”  Metabolism Metabolism is a collection of chemical reactions that take place in the cells of a human body. They help to sustain life. It converts the carbohydrates, fats and proteins into energy that our body absorbs. Metabolic rate is how fast or slow a person burns off the energy that they get from food whilst at rest, this can determined whether the person puts on weight or loses weight.
P4: The Cardiovascular system The cardiovascular system refers to the heart, blood vessels and the systematic circulation (blood). Blood contains oxygen and other nutrients which your body needs to survive. The body takes these essential nutrients from the blood. At the same time, the body dumps waste products like carbon dioxide, back into the blood, so they can be removed. The main function of the cardiovascular system is therefore to maintain blood flow to all parts of the body, to allow it to survive.
Describe the stages of cellular respiration and photosynthesis and their interaction and interdependence including raw materials, products, and amount of ATP or glucose produced during each phase. How is each linked to specific organelles within the eukaryotic cell. What has been the importance and significance of these processes and their cyclic interaction to the evolution and diversity of life? We all need energy to function and we get this energy from the foods we eat. The most efficient way for cells to harvest energy stored in food is through cellular respiration, a catabolic pathway for the production of adenosine triphosphate (ATP).
To start with, there is the transport of nutrients, in glucose and amino acids in the blood. There is also the removal of excretory products, such as ammonia and urea. There is also the secretion of the substances such as hormones. Water is also seen in liquid form commonly, for the movement of materials around organisms, both in cells and on a large scale in multicellular organisms – which require a liquid transport medium. This is because of the hydrogen bonding between water molecules and the molecules are more difficult to separate.
Exchange of carbon dioxide between an organism and its environment: - Pick a couple of contrasting organisms (e.g. protoctists or plants and humans) and describe the surfaces where carbon dioxide is exchanged between the organism and its environment. Link in size, surface area/volume ratio, level of activity, environment to why these organisms have very different gas exchange requirements and surfaces. Transport of carbon dioxide: - In large organisms, carbon dioxide must be transported between the gas exchange surface and the cells where it is produced/needed. - In mammals, most carbon dioxide is transported dissolved in blood plasma as hydrogen carbonate ions.
Cellular Respiration Zoom in: muscle tissue cell mitochondria cellular respiration occurs in the mitochondria 3 body systems are needed to make the mitochondria work; digestion, circulation, and respiration Why digestion? through the digestive system the body acquires the food it needs to fuel all cells main food source needed are carbohydrates broken into glucose molecules the cell breaks the glucose into something smaller and sends it off to the mitochondria there the mitochondria uses these smaller pieces with oxygen to make energy for you Why circulation? the heart and vessels are responsible to pump and transport all nutrients to all parts of the body through tiny vessels called capillaries are things like glucose, oxygen and carbon
Blood Disorders Leslie Parvin HSA/240 December 8, 2013 Earl Benjamin Blood Disorders The blood in the human body serves as the major transport system. Blood is the vehicle for transporting oxygen from the lungs to the cells, and returns the carbon dioxide waste back to the lungs and exhaled. There are many components of the blood such as red blood cells, plasma, and platelets that all play a vital role by providing iron-rich oxygen to different parts of the human body. Thus, having any type of blood disorder can be life threatening to anyone who contacts one. Blood disorders, such as anemia, thalassemia, and sickle cell disease affect millions of people each year in the United States.
The chemical produced by the digestive system that breakdown foods are called enzymes. One of the main substances required for energy and resulting from the digestion is glucose. This is stored as glycogen by the liver and is released back into the circulation as glucose when required. The pancreas produces insulin which plays a role regulating blood glucose levels. Glucose is important because it is an energy molecule that is broken down to give the cell ATP energy to use for the cell’s