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

Explain the probable homeostatic responses to changes in the internal environment following the consumption of a healthy meal

Extracts from this document...

Introduction

M2 Explain the probable homeostatic responses to changes in the internal environment following the consumption of a healthy meal. Homeostasis: Homeostasis is the maintenance of a constant internal environment . The maintenance of homeostasis can occur through the nervous system or through chemical stimulation and changes are achieved and controlled by the homeostasis regulation mechanisms which include sensors, signal transmissions, control centres and also effectors. The above allow the body to adapt to its own environment and therefore allows it to function normally. The reason that we need the internal environment within the body to stay constant is because the enzymes within our body can only work effectively within a certain ph and temperature, if these conditions are not maintained the enzymes will not be able to work and therefore the chemical proteins within the enzymes will not be able to speed up reactions within the body and the enzymes will become denatured, if this occurs this occurs the consequences could be fatal for the individual. Homeostatic mechanisms work by negative feedback as they detect any changes in the boys internal environment and bring about an effect that will reverse the change. ...read more.

Middle

Therefore when we eat a meal the rise is detected within the blood glucose and the islets of langerhans within the pancreas release insulin to bring the levels back down by converting the glucose into glycogen which will then be stored in the liver. The reason for this is because glucose is soluble and is therefore easy to be carried around in the blood it also dissolves very quickly within the blood where as glycogen is in soluble and does not dissolve within the blood as it is stored in the liver until it is needed by the body. The excess glucose from the meal is converted to glycogen and stored in the liver. If we have too little glucose in our blood the body will detect this change and glycogen will be released from the liver and converted into glucose, the reason for this is because the body is in need of more energy e.g. when a person has not eaten. As soon as we start to eat a meal the digestion process occurs in the mouth, breaking the food down into small energy molecules that can be absorbed into the bloodstream. ...read more.

Conclusion

Glucose is the primary fuel used by the brain and is stored in the liver and muscles as glycogen. All carbohydrates can be broken down into glucose in the body. Some carbohydrates have a simple structure that easily breaks down into glucose. These are simple carbohydrates, commonly known as sugars e.g. fruits, milk, and other foods, they are digested rapidly which allows the glucose to be absorbed into the bloodstream quickly. Therefore a meal that is high in simple carbohydrates can contribute to reactive hypoglycemia. Complex carbohydrates and proteins are important in the diet. They are a basic source of energy. Complex carbohydrates are many molecules of simple sugars linked together like beads on a string. They take longer to break down in the intestine, and this helps to keep blood glucose levels more consistent. Pasta, grains, and potatoes are complex carbohydrates. Proteins are made of amino acids that the body needs for growth and good health. Most food protein can be converted into glucose by the body, but since this process takes some time, the glucose gets into the bloodstream at a slower, more consistent pace. That is why people with reactive hypoglycemia should eat complex carbohydrates and protein for their energy needs, instead of simple carbohydrates. BTEC Nat Diploma Health Studies Ashley Kean ...read more.

The above preview is unformatted text

This student written piece of work is one of many that can be found in our AS and A Level Healthcare section.

Found what you're looking for?

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

Here's what a teacher thought of this essay

4 star(s)

4 stars
This essay explains the principles of homeostasis with reference to maintaining blood glucose levels. It is set out logAically, with mostly good content linking to the roles of the pancreas and liver, alongside insulin and glucagon. Areas for improvement, or extension of knowledge and understanding, have been identified within the marking comments. There is some content towards the second half of the essay which is not required in order to meet the essay title.

Marked by teacher Jenny Spice 05/09/2013

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 AS and A Level Healthcare essays

  1. Marked by a teacher

    The Role of Energy in the Body and the Physiology of Three Named Body ...

    5 star(s)

    occurring in the heart; red boxes signify when contraction is occurring and green boxes signify relaxation time. The technical term for contraction is systole and the term for relaxation is diastole. The activity of the atria is shown on the top line and the ventricles at the bottom.

  2. Unit 11 - Working in Health and Social care - SECTION B - SUBSECTION ...

    lot of the time which gives them autonomy over their work unless they have a problem that must be taken up with another practitioner or supervisor. Legislation of the NHS however, must be followed by a midwife and they do not have autonomy over their patients.

  1. Describe the structure of the liver and explain its

    Homeostasis is the maintenance of a stable internal environment. Because the liver has a constant high metabolic rate it produces large amounts of heat and due to its excellent blood supply the heat is efficiently distributed around the body. In the role of homeostasis the liver regulates many aspects which are needed to maintain a healthy body.

  2. Analyse the effectiveness of the body's response to different hazards in the external environment

    Also the skin is protected in varying degrees from harmful effects of ultra-violet raditation by the production of melanin. The skin does not provide a hospitalable environment for bacteria unless they have become adapted through evolution to live there and are known as commensals.

  1. Should supermarkets promote healthy eating? ...

    One of these is high cholesterol. Foods from animals such as egg yolks and whole milk dairy products contain it.* The body makes all the cholesterol it needs, so people don't need to consume it. Saturated fatty acids are the main culprit in raising blood cholesterol, which increases your risk of heart disease.

  2. For Early years and education A04 I am going to plan and carry out ...

    From this weakness in the activity, I realised that Francesca would need more time to do the activity in order to get the full benefit of doing it otherwise she would not be learning effectively from the activity. Evaluation sheet for the child I gave this evaluation sheet to Francesca

  1. Unit 5 Anatomy and physiology in health and social care

    Columnar Upper respiratory tract Connective tissue binds and supports other tissues 1. Contains fewer cells, scattered throughout an extracellular matrix 1. Matrix: 1. Secreted by the cells 2. Contains a web of fibers embedded in a liquid, jelly, or solid 1.

  2. Analyse how the nervous system and the endocrine system work together to produce a ...

    2) Where do we obtain sodium from? Sodium occurs naturally in eggs, meat, vegetables and milk. It is added to many processed foods. Sodium is a part of everyoneâs daily diet Sodium is one factor in the development of high blood pressure. It is a component of salt. E.g. Table Salt is 40% Sodium and 60% Chloride.

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