• Join over 1.2 million students every month
  • Accelerate your learning by 29%
  • Unlimited access from just £6.99 per month

Mechanisms of Digestion

Extracts from this document...

Introduction

Digestion In this unit I will learn about different groups of food, how important they are to us to fuel us with energy and help growth and repair. Also I will look at how food is digested and how to keep a balanced diet. Digestion- an Introduction Digestion is the breaking down of foods we eat, usually too large to enter the bloodstream. It helps extract nutrients from foods. It also helps extract Carbohydrates, Vitamins, Salts, Fats, Proteins and Fibres from the foods to help give us energy and aid growth and repair. All of these food groups must be eaten, in balanced amounts. Too much, or too little of one of these food groups can cause us great damage. The food groups we must eat the most of are Carbohydrates and Vitamins, Vitamins usually taken from fruits vegetables such as carrots, oranges and cucumbers and Carbohydrates from starches such as bread, potatoes and pasta. Proteins and fibres are very significant too, and fat is also. If too much fat is taken though, which is very common today as much food contains huge amounts of fats, it can result in obesity. ...read more.

Middle

It is kept in the intestines to help move around the digested food and other materials. So how does food enter the digestive system? The answer is the moment you swallow your food. The mouth is the first step on the long journey of the food. Once the food has entered the mouth it is chewed up and broken down using saliva, which contains an enzyme called Amylase. After it is soft and small enough it is swallowed. After being swallowed the food is pushed down the oesophagus, a long tube running from the mouth to the stomach, the food is transported to the stomach via the oesophagus. Once into the stomach the digestive juices begin to break the food down more, sugar is transported into the bloodstream here so that is the reason sugary foods give a quick burst of energy because the sugars are digested so early, then moving into the small intestine where the nutrients are extracted from the food. Then the remainder of the food, made up of water and fibre is moved into the large intestine. In the large intestine the water and fibre is pushed along to the rectum. ...read more.

Conclusion

also help maintain cells; Fats help keep the body insulated and warm, as well as being used to help protect organs, muscles and bones, Fats also contain what is needed to create cell membranes, again it provides some energy, although most of the energy we use comes from Carbohydrates. Fibre is slightly different from most other nutrients, it is not actually digested. It is kept in the intestines to help move around the digested food and other materials. Also water is found in many foods and drinks, it helps hydrate the body and produce body fluids as well as maintaining cells. Carbohydrates, Fats, Vitamins, Salts, Proteins and Fibres come in many different foods, below are some examples of what nutrients are in which foods: * Rice- Contains mostly Carbohydrates and very little Water or Protein. * Chocolate- Contains mostly Carbohydrates, a small amount of protein and very little water. * Cucumber- Contains mostly Water (90% of it is water), very little protein and no Carbohydrates. * Soya Beans- Contains mostly Protein, a small amount of Carbohydrate and very little water. So many different foods contain different nutrients. Nutrients are what we require to keep us alive, without food we would be able to get no nutrients and wouldn't be able to live. ...read more.

The above preview is unformatted text

This student written piece of work is one of many that can be found in our GCSE Food Technology section.

Found what you're looking for?

  • Start learning 29% faster today
  • 150,000+ documents available
  • Just £6.99 a month

Not the one? Search for your essay title...
  • Join over 1.2 million students every month
  • Accelerate your learning by 29%
  • Unlimited access from just £6.99 per month

See related essaysSee related essays

Related GCSE Food Technology essays

  1. Nutrients are split into two main groups, the macronutrients which contains carbohydrates, fats and ...

    If some of the hydrogen atoms are missing and have been replaced by a double bond between the carbon atoms, the fatty acid is called unsaturated.

  2. We are encouraged to consume 4-6 portions of fruit and vegetables each day. Investigate ...

    the results were; These results are very even and there is no clear favourite, which shows that teenagers like a variety of drinks and not just the unhealthy ones. This is encouraging as this means that they are not just drinking fizzy drinks and therefore not damaging their teeth with the chemicals in the drink.

  1. Investigation on enzymes.

    I will not repeat my readings because with 8 results I will easily spot any anomalous results. Method Apparatus 8 test tubes Test tube rack 1 ml syringe 5 cm syringe Water bath Water Bile Lipase Boiled Lipase Phenolphthalein Sodium Hydrogencarbonate Stopwatch 1.

  2. Free essay

    An Investigation into Convenience Foods

    ham and mushroom tagliatelle 400G �1.48 Good for you chicken arrabiatta 450GR �1.98 Good for you chicken spinach bake 400G �1.98 Good for you lasagne 400G �1.32 Good for you sausage and mash 400G �1.48 I have gathered information on ready/frozen meals from ASDA store so i could prepare the

  1. heal and social unit 2

    Unemployment is when you do not have a job. Not having a job leads defaulters like not meeting financial contracts. Unemployment means it is hard to feed your self or your family because you do not have any money coming in.

  2. We all need to eat food in order to provide raw materials for growth ...

    They are used for growth and repair of the body. Proteins can also be used as a source of energy. Fats are classified as the bodies second source of energy. Like carbohydrates, fats contain the elements Carbon, Hydrogen and Oxygen.

  1. Globalisation and regulation of food risks. A theoretical overview.

    farmers and expressing material and discursive conditions like cultural diversity, citizen's rights, food safety and biodiversity. For the majority of the world's population, food is not just an item of consumption but it a way of life with deep material and symbolic power.

  2. An Introduction to the Republicof Singapore and its People

    seems to start wearing tops with jeans. However, the tightness of the jeans matters; if they are very tight and high waisted, we call the Chinese "ah-beng or ah-lian" (uneducated Chinese gangster), and the Malays "mat-rock or minah-rock" (Malay rockers).

  • Over 160,000 pieces
    of student written work
  • Annotated by
    experienced teachers
  • Ideas and feedback to
    improve your own work