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.
It is very important that a person stays hydrated because water makes up more than half of your body weight, and not staying hydrated can result in your body shutting down and possible death. Your body uses water in many ways, all the cells in your body need water to function. All of your body’s tissues need water, and all of your body’s organs need water to function correctly. Some of the ways that your body uses water are ; water is used to regulate your body’s temperature, you sweet to lower your temperature when your body is overheating. Water is also used to carry vitamins and minerals to our body’s cells.
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.
Describe the characteristics of nutrients and their benefits to the body In each nutrients had their own job and purpose and it is important to maintain the right amount of nutrients in the body. If there are too much or too less it can cause malnutrition and this can affect the body not to function properly. Carbohydrates Carbohydrate is the main source that gives out the most of energy to the body especially the brain and nervous system, even when you asleep, the cells need oxygen and nutrients to function. This is known as basal metabolism. All the dietary intake 50% from them should came from carbohydrate.
It does however have its negatives in that the ATP lasts only 10 seconds so can’t be used for long distance running for example. The lactic acid system, like the ATP-CP system, is extremely important to us, primarily because it too provides for a rapid supply of ATP energy. For example, exercises that are performed at maximum rates for between 1 and 3 minutes depends heavily upon the lactic acid system for ATP energy. Also, in some performances, like running 1500 meters or a mile, the lactic acid system is used predominately for the kick at the end of a race. A disadvantage of this system is the by product which is lactic acid which makes the muscles sore.
The work that you perform in the gym is simply the “spark” that sets the muscle growth process into motion. However, the REAL magic takes place when you are out of the gym, resting and eating. This is when your body will use the nutrients that you consume to begin repairing your damaged muscles and increasing their size and strength in preparation for your next workout. If you don’t provide your body with the raw materials needed to facilitate growth, this process simply cannot take place. In order to provide your body with the calories necessary to fuel muscle growth and to keep your body in an anabolic, muscle-building state at all times, you should be consuming anywhere from 17-20x your bodyweight in calories every single day.
G. The elevation in her respiratory rate would alter her minute ventilation by raising it. Minute ventilation is determined by times in respiratory rate by total volume. H. The clinical finding of 90% oxygen saturation level and a Po2 of mmHg would show that the arteries are having too much oxygen, since a normal Po2 of a resting person is 40 mmHg and exercises lower Po2 levels. A normal resting oxygen level should be about 94% with no added Oxygen. I. Cari’s symptom of “panting like a dog” is due to the lack of oxygen and reduces oxygen exchange at her tissues.
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
The breakdown of the membranes of the structures will affect the function of Joseph’s heart cells because Joseph was no longer receiving calcium in his cardiac muscle cells. The special calcium ATPase’s had stopped moving calcium from the cytosol into the endoplasmic reticulum of his cardiac muscle cells. The rising of the intracellular calcium levels caused proteases to spill into the interior of the cell, which then attacked the cytoskeleton. The normally safely bound lysosomal enzymes started to digest the plasma membrane and the membranes of the organelles. D. Both Joseph’s instructions he needs to repair his body and his predisposition for vascular disease are both contain in Mitochondrial DNA.
The pancreatic duct in people who have cystic fibrosis frequently becomes blocked, reducing or preventing the release of pancreatic enzyme into the small intestine One enzyme can be used as many times over. There are two types of enzyme reaction; the first is 'Anabolic' reaction- this is when large molecules are built up from smaller molecules. The second type of reaction is called 'Catabolic' reaction- this is when large molecules are broken down into smaller ones. enzymes are highly selective, catalysing one specific reaction only. This specificity is due to the protein tertiary structure which creates the specific shape of an enzyme molecule * Digested food molecules are absorbed through the small intestine (into our blood) * Once in the blood, the digested food molecules are carried around the body, to where they are needed * Only small, soluble molecules can pass through the wall of the small intestine * The inside wall of the small intestine needs to be thin, with a really big surface area * This allows absorption to happen quickly and efficiently (so we absorb as much food as possible) * To get a big surface area, the inside wall of the small intestine is lined with tiny