The digestive process is the process by which foods are broken down, absorbed or excreted by the body. Digestion start from the mouth. Mastication is the broken down of food into smaller particles and saliva contain mostly water which aid in chewing and swallowing. It also contain important enzyme amylase, that begin the broken down of starches or carbohydrate. The food passes the esophagus from the mouth, a long tube which connect from the mouth to the stomach. The muscle on the upper part of the stomach relaxes to receive large volumes of swallowed food or liquid from the esophagus. Stomach is a muscle that helps to break down food into smaller pieces. Small intestine comes next in the order of digestive system. The small intestine is an …show more content…
Protein is the most abundant substance in the human body. Protein are nearly the component of every cell and are often referred to as building block because of their in development and repair of bone muscle skin and blood cells. Protein from food is broken down into amino acids by the digestive system. Amino acids are used to build and repair muscles, for making hormones, red blood cells, hair and other tissues. Adequate protein intake is also important for a healthy immune system. Because protein is a source of calories, it will be used for energy. Carbohydrates can be grouped into two categories: simple and complex. Simple carbohydrates are sugars, complex carbohydrates consist of starch and dietary fibre. Carbohydrate provides the body with energy that used to fuel it. Since carbohydrate is our preferred sources of fuel, our body must find another source of energy when we do not eat enough. As a result, the body will break down stored fat in a process called ketosis. Ketosis produces a fuel called ketones and is an important process that ensure sufficient energy is provided to the brain. When adequate carbohydrate intake continues for an extended period of time excessive ketone are produced resulting in acid acidic blood and a condition called ketoacidosis. Fibre is the indigestible portion of plant foods that helps move food through the digestive system. It softens stools by absorbing water. Fibres, also known as “bulk “or “roughages” can be found in whole
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The digestive system absorbs the minerals and nutrients from the foods that have been eaten. The break down of food beings in the mouth, where the
The esophagus receives food from the mouth after swallowing and then delivers it to the stomach. The stomach holds food which it is being mixed with enzymes which continue the process of breaking down the food into a useable form. When the contents of the stomach are processed they are released into the small intestine. In the small intestine food is broken down by enzymes released from the pancreas and bile from the liver, the food is moved through and mixed with digestive secretions. The small intestine is made up of three segments the duodenum, jejunum and the ileum, the jejunum and the ileum are mainly responsible from the absorption of nutrients in to the bloodstream. These contents start out semi-solid and end in a liquid form after passing through the organ. Water, bile, enzymes and mucous change its consistency, one the nutrients have been absorbed it then moves onto the large intestine. The large intestine connects to the rectum and is specialised in processing water so that emptying the bowels is easy.
Digestion starts in mouth and it is going through several steps. Teeth which are a Mechanical digestion start tearing and crushing the food down into small pieces so that the food will smoothly run down our throat. The salivary glands are located underneath the back of our tongues and that’s what is creating our saliva. The saliva is the Chemical Digestion is helping soften the food in the mouth so it is easy to swallow. Also saliva is the first out of several chemicals that is breaking the food into smaller bits. The tongue is the muscle that works with the food and saliva to form something similar to balls that can be swallowed. Also tongue contains taste buds so that we know if the food is salt, sweet, sour or bitter. Esophangus is a simple transportation tube that is joining the throat with stomach. When swallowing we are closing a trap door in our throats called the epiglottis. By closing this trap we are preventing the food prom going to trachea and into our lungs. Also Food moves down the esophangus using muscles not gravity. Stomach is the first stop after the Esophangus. When the food gets into stomach the stomach uses chemicals to try to make the food smaller. These chemicals are called gastric juices and they include hydrochloric acid and enzymes. (Enzymes are
Digestion is the chemical breakdown of food molecules into smaller molecules that can be used by various cells within the body. The breakdown is initiated when food is ingested in the mouth and specific enzymes are exposed to components within the food molecules. Digestion begins in the mouth with mastication, or chewing, performed by the teeth. The purpose of chewing
Digestion is a process in which insoluble food is broken down into particles which are made into soluble particles enough to be absorbed and to be used by the body and into the bloodstream. These soluble particles are major macronutrients made up of protein, carbohydrates and fats which are needed for essential maintenance for the functioning of the human body. Nutrients are found in foods- proteins are found in red meat/poultry; sources of carbohydrates include
My daily diet should contain a balance of proteins, carbohydrates (carbs), and lipids (collectively called macronutrients). According to Kirby (2011), micronutrients are substances such as vitamins, and minerals that are essential for healthy growth and developments. The body only requires small quantities of micronutrients and without them serious problems can arise. The role of each micronutrient makes proteins, carbohydrates, and lipids equally important in my diet. Proteins are important for repair and tissue growth, helps the body to make enzymes and hormones, as well as preserve lean muscle mass and is a source of energy. Carbohydrates are the body main source of energy and are easily broken down into glucose
We eat all types of food everyday, we have one important tool that we use to break down food which is enzymes. Digestion starts once food is chewed with saliva found in our mouths. Saliva contains all kinds of enzymes and there are hundreds types of enzymes in terms of breaking down food such as amylase,
The process of digestion first begins in the mouth by in taking food (bolus). The teeth help with masticating (chewing and breaking food particles down) allowing for swallowing and increasing surface area for chemical digestion. Enzymes found in saliva also facilitates with the chemical break down of food primarily starches and fats. The food swallowed then enters into the esophagus (a tube connecting the mouth and stomach). Peristalsis helps the esophagus to push the food in the direction of the stomach. The stomach contents are highly acidic (doesn’t affect the stomach mucosa since cells secrete mucus allowing the stomach wall to be protected) with pH levels between 1.5-2.5 allowing microorganisms to be killed, breaking down of food, and activating digestive enzymes producing a thick substance known as chyme. However, breaking down of foods further occurs in the small intestine consisting of: bile created from the liver, enzymes formed from the small intestine, and the pancreas facilitate with further digestion as well as HCI denatures (unfolds proteins) allowing them to be available to attack by digestive enzymes (also responsible in breaking down the protein). The pyloric sphincter separates the stomach from the small intestine allowing the chime to drop into the small intestine. The small intestine is the primary site for
Food is digested by being broken down, by a variety of enzymes, into useful nutrients, which are transported around the body to places where they can be of use, and into waste products, which are excreted from the body. The digestive system is made up of a number of organs, oesophagus, stomach, liver, pancreas, gallbladder, and small and large intestines, these are then separated into the digestive tract and the digestive organs. The digestive tract is, essentially, a single continuous tube that begins at the mouth and ends at the anus, in a fully grown adult it is approximately seven metres long. Food travels through the digestive tract and the digestive organs produce the enzymes and chemicals that are responsible for
Carbohydrate is a nutrient essential for energy production and the prevention of ketosis, a state where the production of ketones exceeds metabolism. Protein is a nutrient essential for its components, amino acids. Fat is a nutrient which provides insulation, protection and energy for the body.
The digestive system is the process that involves the mouth, esophagus, stomach, small intestine, large intestine and rectum. For the body to function, the body`s cells needs energy and that energy will come from the food we eat. All the food we eat contains nutrients, carbohydrates, glucose, lipids, protein and many more other substances. The only way the body can absorb and convert these nutrients into energy to our cells is through breaking down the large molecules into smaller pieces and moist by the action of enzymes.
Digestion starts in the mouth. Chewing mechanically breaks down the food with saliva. Saliva moistens the food and is an essential enzyme for the digestion of starch. Saliva contains ptyalin, which is capable of breaking down starch into simpler sugars such as maltose and dextrin that can be further broken down in the small intestine. About 10-15 seconds after chewing has begun, the food bolus passes through the pharynx and in the oesophagus. When you swallow, the epiglottis closes to prevent the food from entering the respiratory system. The soft palate closes to prevent food from entering the nasal cavity.
The digestive system has many functions that allow people to live out their daily lives including the production of energy through nutrients in a functioning digestive system. The first function of the digestive system is the ingestion process. Ingestion is the intake of food performed by the mouth. Then, the mouth and stomach are responsible for storing the food until digestion. After ingestion, the digestive system secretes fluids, in order to soften the food and protect and lubricate internal organs, through a means called secretion. The food is then sent through a procedure of mixing and movement. Mixing and movement move the food to the intestines for digestion. Digestion is the most known function of the digestive system. Food is turned into chemicals and broken down into building blocks. When the digestive system has its building blocks, absorption takes place in the small intestines. The small intestine contains microscopic blood and lymphatic cells which carry the chemicals all over the human body. Once the chemicals are dispersed, the final process of the digestive system takes place. The overall progression is called excretion. Defecation is the process within excretion. Defecation takes indigestible substances from the body, so it
The digestive system is very important in digesting food and breaking it down so it can be digested easily. The digestive system turns food into energy. Throughout the process there are nutrients which are absorbed. There are many things that contributed to the digestive system such as the mouth which produces saliva which helps to break down food and nutrients such as carbohydrates with the help of an enzyme called amylase. The major food groups which are called macro nutrients include carbohydrates, proteins and fats. All of these nutrients play an important role in the body. There are also many micro-nutrients which include vitamins and minerals which provide the body with health and well-being. The digestive system is made up of the mouth, which includes the teeth (the teeth are used to cut and grind food into smaller pieces, they contain blood vessels and nerves), tongue (the tongue is a muscle that has a rough surface including the taste buds), salvia glands (they produce salvia which moistens the food to make is easier to digest), the pharynx (this helps the food travel to the stomach, the pharynx also plays an important role in the respiratory system. It also contains 2 different flaps to separate the 2 functions), esophagus (this connects the pharynx to the stomach and transports chewed food to the stomach), stomach (this is a muscle that is
Carbohydrate intake should consist mainly of that considered as complex sugars as opposed to simple sugars. A diet containing the correct amount of complex carbohydrates will ensure that the liver and muscle glycogen levels are always topped up. Failure to do this can lead to fatigue, dizziness, weakness and poor performance and poor recovery from training. Ketosis can also occur if the glycogen levels drop to very low levels and the body then becomes reliant upon stored body fat for energy whereby there is a build up of acids in the body called