Metabolism Essay

The human body is an incredible system that is capable of working a multitude of diverse functions. Without the help of the many different protein molecules, the human body would not be able to function properly. One major group of proteins called enzymes are mandatory for essential life. These proteins are constantly at work assembling molecules, metabolizing energy, and fighting off infections. An enzyme is a macromolecule that acts as a catalyst that speeds up a chemical reaction without being consumed by the reaction. Without these proteins, these reactions would take place too slowly to keep us alive. Essential parts in your body like vitamins and minerals cannot do any work without

Carbohydrates are essential for providing energy and are broken down inside the body and turned into sugar that is released slowly.-Dietary fibre is also found in this food group and used to keep regulation of the bowels and isn't actually absorbed into the bodies. Instead it passes through the gastrointestinal tract and excreted. This makes sure the bowels and intestines are kept healthy.

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

Food provides the energy in the form of calories as well as the materials needed to build and maintain all body cells.

But protease is important in terms breaking down complex protein into amino acids (1). The food travels down through the esophagus into the stomach. The stomach plays an important role since it break down proteins with hydrochloric acid and protease. In class, we learned that the strong acid will help break down the peptide bond into amino acids while the protease speeds up and perform hydrolysis of the peptide bond of the proteins. The protein will break down into simpler amino acids. The food content in the stomach will eventually become chyme in which it is a thick, liquified digested food that will travel through small and large intestine (2). As the food travels through the small intestine, the muscular wall moves the food and absorbs the nutrients through the wall into the bloodstreams. The amino acids will be available for cell to build to whatever the body requires.

Keeping in range your micronutrient is very important, the range provides a guide to a well-balanced nutrition in which you should not exceed the recommended ratios in order not to create excess energy in thus converting to fat. The lack of micronutrients is also important to keep in mind. Lack of these nutrients can cause malnutrition that can lead to disease complexity disorder and long term damage to your organs.

As your nourishment is processed, it gets separated and the body removes what it needs. Each of the supplements i specified above have an alternate use. Carbs give the body vitality (it is the essential fuel source), each of the diverse minerals and vitamins help the body in distinctive ways-eg calcium assists with bone reinforcing. Fats are another fuel source and unsaturated fats lower cholesterol. Protein helps in the development and generation of muscles.

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

Explain the role of RNA polymerase inhibition in causing the poisonous effect of the death cap mushroom.

Making sure nutritional needs become a part of any lifestyle requires understanding exactly what the body needs to obtain and maintain optimal health. The recording food intake for three days provides many areas of nutrition that I am more aware of that before; this includes protein, carbohydrate, lipid, and fiber intake needs. Meeting the nutritional needs of the human body helps to ensure a healthy lifestyle that is free of disease and illness.

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.

Food has to be broken down by the body from things like broccoli and steak into pieces. The nutrients that the body takes from these foods include amino acids from the proteins, fatty acids and cholesterol from the fats, and simple sugars from the carbohydrates, as well as all the vitamins, mineral, and other types of compounds. Digestive enzymes in the pancreas and the small intestine break down the food into nutrients so that the body can absorb them. They are also located in the saliva glands and the stomach; however, we are not going to focus on those.

The two theories for the emergence of metabolism and polymers are catalytic changes that make metabolism first and the replication by nucleic acids before metabolism. The metabolism first theory is when life came to be by tiny droplets undergoing chemical changes, which concentrated the content of the tiny droplets. A mineral called pyrite may have been an energy source for polymerization reactions as well as the eventually forming nucleic acids and proteins. After the metabolism was created then nucleic acid replication as well as enzymatic function may have been evolved. The second theory is that nucleic acids evolved first. Random polymers had the function to produce proteins and replicate. This had issues because of the inability to reproduce as well as DNA is not self-catalytic. On the other hand the theory could be possible due to the

The primary function of the digestive system is to transfer nutrients, water, and electrolytes from the food consume into the body’s internal environment. The ingested food is essential as an energy source, or fuel, from which the cells can generate ATP to carry out their particular energy-dependent activities such as contraction, transport, synthesis, secretion and even renewal of body tissues. Three primary categories of food ingested by humans which are carbohydrates, proteins and fats emerge as large molecules. These large molecules cannot cross plasma membranes intact to be absorbed from the lumen of the digestive tract into the blood or lymph; hence, it must undergo degradation in size (Sherwood, 2013). This