Nutrition and Digestion
Part 1 Nutrition in humans is a product that require to supply the human body to function, nutrients also helps to prevent any disease in human organs.
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Nutrients
Definition
Role and Function Deficiency Symptoms
Carbohydrates Is an important extract that contain the glucose were the body is in needed to form energy. Provide muscle energy, fuel for the nerve system, the fat metabolism and protect the protein to been used as energy Extreme weight loss, irritation or depressed, headache and constipation
Proteins Is an essential nutrients that are important for the human body Protein have connection with amino acid to help in functions of: skin, muscle, hair and bones This occur when the person have lack
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Large intestine is responsible for the process of waste this can emptying the bowels. Large intestine also are made up with the cecum.
Rectum is a chamber that contain around 8 inch of tube, the rectum are connected to the large intestine and anus. Rectum have a function of release the unnecessary product.
Ingestion is a process of consuming any product alimentary into our body. By nature the ingestion occurs through the mouth. The food we are ingesting pass throughout the stomach, where stomach acids and enzymes acting. The muscular in our stomach squeezes and mixes the food. After the food into our intestine.
Digestion have a function of breaking down all food into our body. Our body use all nutrients to help in the process been health and growth. Digestion supplied small molecules that will be absorbed into our bloodstream.
Absorption is the way of digesting the food molecules into the small intestine. This process of absorption pass throughout the wall of the small intestine into the bloodstream. The bloodstream carried out all important nutrients to the
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In this case only when sufficient quantities have been ingested, are we able to synthesise the remaining non-essential amino acids.
Example of essential amino acids:
• Phenylalanine
• Methionine
• Tryptophan
• Threonine
• Lysine
• Isoleucine
• Leucine
• Valine
• Histidine
Conditionally essential amino acids: this are present in many foods, but are not always required to be a part of the daily diet. So long as we successfully absorb sufficient amounts of the essential amino acids, the liver is able to synthesise the remaining others conditionally amino acids. At certain times in life and in certain population groups these amino acids must be supplied by the diet to ensure good health. An adequate intake of the conditionally essential amino acids will also help to spare valuable resources of essential amino acids.
Example of conditionally essential amino acids:
• Glycine
• Alanine
• Tyrosine
• Serine
• Cysteine
• Proline
• Glutamic acid
• Glutamine
• Aspartic acid
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During digestion, the body breaks down food into smaller molecules that could then be used by the body’s cells and tissues in order to perform functions. This starts off in the mouth with the physical movements of chewing and the chemical breakdown by saliva. Enzymes in the stomach break food down further after traveling from the mouth through the esophagus. The food from here then moves into the small intestine, where pancreatic juices and enzymes dissolve proteins, carbohydrates, and fibers, and bile from the liver breaks down fats into these small molecules. Any portion of the fibers or food that were unable to be broken down are passed from the small intestine to the large intestine, which is where the digestive tract transitions into the excretory tract, then the colon and out of the rectum. Any liquids that have been stripped of their nutrients by the body proceed from the stomach to the kidneys. In the kidneys, sodium ions (Na+), uric acid, and urea are exchanged with water, which moves urinary bladder and is excreted through the
There are nine amino acids that are considered “essential” for health, which we must obtain from our diets since our bodies cannot make them on their own. Some of the roles that amino acids/proteins have include helping to form and maintain muscle mass, providing energy for our cells and brain, helping store away energy for later use in fat stores, making your heart beat, and helping build the foundation of vital organs, including your heart, lungs and even your DNA, and supporting growth/development. Because of its ties to lean muscle mass and satiety in terms of controlling your appetite, protein is especially important as you age.
The digestive system otherwise known as the gastrointestinal tract (GI tract) is a long tube which runs from the mouth to the anus. It operates to break down the food we eat from large macromolecules such as starch, proteins and fats, which can’t be easily absorbed, into readily absorbable molecules such as glucose, fatty acids and amino acids. Once broken down, these molecules can cross the cells lining the small intestine, enter into the circulatory system and be transported around the body finally being used for energy, growth and repair.
Try to imagine yourself, sitting at lunch, enjoying your sandwich and a few strawberries along the way. Once you are done your delicious meal, you take one last drink of orange juice and head to your next class. In a few minutes you are thinking about your upcoming visit to the mall. You've completely forgotten about that sandwich you had just ate. But it is still sitting in your stomach!! Now how does this work, how did your body absorb all that food? It all goes back to the digestive system.
Imagine you are eating a sandwich containing wheat bread, ham, lettuce, and Swiss cheese. Do you ever wonder where the nutrients go from all of the previous listed ingredients? Well, when a bite of this sandwich is taken, the mouth produces a saliva enzyme called amylase. This enzyme immediately goes to work by breaking down the carbohydrates that are in the bread. Once, the bite is completely chewed, the contents then are swallowed and go down the esophagus and begin to head towards the upper esophageal sphincter and the is involuntarily pushed towards the stomach. The next passage for the sandwich is to go through the lower esophageal sphincter; which transports the sandwich into the stomach.
There are many similarities and differences between organisms of different species’ digestive systems. The digestive system of an organism is the system that makes food absorbable into the body. The food that the organism takes into their body is broken down through an organ to make it easier for the body to take the nutrients it needs from the food. The food that is broken down in the digestive system is then turned into energy for the organism.
In short, digestion is the process where food is broken down and then absorbed by the body. The digestive system is extremely important as it is the main factor in how much of a foods nutrients are utilized. The process of digestion is essential for the body as it is the body's source for energy.
The human digestion system is very complex. It starts with the mouth, salivary glands, pharynx, esophagus, stomach, liver, pancreas, gallbladder, small intestine, large intestine, then ends/exits with the anus. Each step is essential to the whole system. For example, the mouth chews food and mixes it with saliva produced by the salivary glands, and then the pharynx swallows chewed food mixed with saliva, this is followed by the food traveling through the esophagus to the stomach where the food gets a bath and mixes with acids and enzymes. After the stomach, the liver, pancreas, and gallbladder produce, stores, and releases bile and bicarbonates. Bile is produced in the liver and aids in digestion and absorption of fat while the gallbladder stores bile and releases it into the small intestine when needed. Following the process into the small intestine, this is where nutrients will be absorbed into the blood or lymph (most digestion occurs here). Next is the large intestine this is where water and some vitamins and minerals are absorbed. Finally, it is the end of the road, the anus. At...
“If we could give every individual the right amount of nourishment and exercise not too little not too much, we would have food the safest way of health” (Barasi.E.M, 2003). This essay is going to discuss on the important of six essential nutrients in human body. According to PosnerB.M (1998), he define essential nutrients as a nutrients that the body cannot synthesize on its own-or not to an adequate amount and must be provided by the died. Oxford dictionary (2009), also define essential nutrients as are those nutrients that are required by the body and cannot be synthesise in the adequate amount to meet requirement, so must be provided by the diet. Essential nutrients are those found to be essential to human life and optimal function, Williams.M. H (2006).There are six main type of nutrients used to maintain body health. They are carbohydrates, protein, fat, vitamins, minerals and water. They must be in balance for the body to function properly.
Answer: It produces glucose (sugar), which is the basis for most food chains, oxygen, which is necessary for breathing, and energy so that other organisms can function.
thousands of different ways to form thousands of different proteins. each with a unique function in the body. Both the amino acids manufactured in the liver and those derived from the breakdown of the The proteins we eat are absorbed into the blood stream and taken up by the cells and tissues to build new proteins as needed.... ... middle of paper ... ...denatured by boiling, their chains are shortened to form gelatine.
Amino acids contain about 16 percent nitrogen. Chemically, this is what distinguishes them from the other two basic nutrients, sugars and fatty acids, which do not contain nitrogen.
The digestive system is very responsible for taking the whole food that people eat and turns them into energy and nutrients to allow the body to function, grow, and fix itself. The six primary processes of this system are ingestion of food, secretion of fluids and digestive enzymes, mixing and movement of food and waste throughout the body, digestion of food into small pieces, absorbing the nutrients, and the elimination of wastes. Ingestion is the first function of the digestive system, which is also known as the intake of food. The mouth is the reasoning for this process because through the mouth is the way food enters the body. The stomach and the mouth store food until your stomach is ready to digest the food that was just eaten. The reason why people can only eat a few times a day is because your body can only allow a certain amount of food depending on your body weight and type, and it cannot ingest more food than it can process at one time. The next step in Secretion, this happens in the course of the day. The digestive system secretes about 7 liters of fluid daily, but these fluids include saliva, mucus, hydrochloric acid, enzymes, and bile...
...ts. It is important to understand which substances need to be consumed more than others and also why the body needs to consume a substance. Proper diet and nutrition is a vital component to a long and healthy life.
People is always asking: “Why is important to have a balanced diet? Why is necessary to have a balanced diet on a daily basis? And why do professionals tend to recommend a balanced diet?” The human being has essential needs to its existence: breathing, feeding, and keeping the body in constant movement. The majority of the people are aware of this, but they do not have a balance among these things and even more important they do not eat the adequate food to keep their body healthy. Food is one of the most important factors because it gives the energy the body needs daily. In other words, few words food is the fuel that provides glucose, which is carried to each cell of the body through the bloodstream. This process is extremely important and this is influenced by the type of food that each person consumes. A balanced diet is important for human beings, and makes reference to a good nutrition with regard to the food they eat; which contains macro nutrients that are carbohydrates, fats, and proteins; these provide energy and basic materials that the body uses to grow and stay healthy.