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

Describe the role of energy in the body and the physiology of three named body systems in relation to energy metabolism.

Extracts from this document...


P4- describe the role of energy in the body and the physiology of three named body systems in relation to energy metabolism. Energy can be defined as the capacity of a physical system to perform work. It comes in many different forms, chemical energy being the most common, and it can be divided into two main categories kinetic and potential. But I am going to talk about energy metabolism, which consists of all the chemical reactions in the human body either using or releasing energy from different chemical substances. Energy can be converted from one form to another, but it cannot be created nor destroyed. ...read more.


The large complex molecules made during anabolic reactions are carbohydrates, proteins and lipids. The opposite of anabolic reactions is catabolic reactions these are reactions that involve breaking down complex molecules to release energy. The energy catabolic reactions make help anabolic reactions happen. As the complex molecules are broken down the waste products of the process are removed from the body through the skin, kidneys, lungs and intestines. There are three systems which are involved in energy supply to the cells around the body; these are the cardiovascular, digestive and respiratory. Both the digestive and respiratory systems are important in the production of energy's main ingredients, glucose and oxygen; they make energy by cellular respiration. ...read more.


As this is happening the respiratory system is persistently refreshing and reloading oxygen into the lungs, and disposing of carbon dioxide and water via the process of breathing. Dissolved oxygen passes through the lean alveolar walls in the lungs into the bloodstream and is transported to all the other cells in the body. This means that all body cells have a constant relief of glucose, oxygen and other raw materials so that the breakdown process of glucose oxidation (C6H12O6 + 6O2 � 6CO2 + 6H2O) can occur and release energy. This takes place in the cytoplasm and is completed in the mitochondria. The released energy is trapped as chemical energy in Adenosine triphosphate (ATP). ?? ?? ?? ?? Karlie Jane Whitmore Unit 5- Health and Social Care ...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

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)

    The Structure of the Heart. The adult heart is the size of a closed fist located in the thoracic cavity between the lungs and protected by the rib cage. It is surrounded by a tough membrane, the pericardium, which contains a thin film of fluid to prevent friction.

  2. Marked by a teacher

    P2: Describe the structure of the tissues of the body and their role in ...

    4 star(s)

    Simple: This type of tissue is made up of more than 2 layers and its deepest layer rests on the basement membrane. As it has many layers, it is unable to secrete or absorb. However it acts as a protective layer against mechanical, chemical, thermal and osmotic stress.

  1. Describe (P4) the role of energy in the body and explain (M1) the physiology ...

    If we do not eat the food properly, we are easy vulnerable to all sorts of sicknesses. Most of common sicknesses are the biggest problem of our society is eating disorders, which are on diet. Metabolism is the sum of all chemical reactions occurring in human physiology and these will involve using or releasing energy from chemical substances.

  2. P2 - Physiology of fluid balance

    The atoms in a gas are much further apart like shown in the diagram below. Particles within a gas are able to move past one another freely, unlike in solids and liquids. A gas has lots of free space between the particles and therefore allows it to be compressed easily.

  1. P4- Explain the physiology of two named body systems in relation to energy metabolism ...

    However, the main artery to the body leaving the left ventricle is the aorta, whereas the main vein bringing blood back to the heart from the body enters the right atrium which is also known as the vena cava. The vena cava has two branches, which are: the superior, which returns blood from the head and neck.

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

    It is represented by gummy worms. Vacuole - fluid-filled, membrane-surrounded cavities inside a cell. The vacuole fills with food being digested and waste material that is on its way out of the cell. They are represented by jaw breakers. P2: outline the structure of the main tissues of the body

  1. In the human body the respiratory system, cardiovascular system, the digestive system, the musculoskeletal ...

    Inside the bones there is a red marrow which produces blood cells and on the outside of the bone stores lipids which help with energy levels. The digestive system The role of the digestive system is to break down foods that are eaten so that cells can use the nutrients from it.

  2. Describe the role of energy in the human body

    from blood to alveoli and the oxygen diffuse from alveoli to blood. Alveoli are surrounded by narrow capillaries. The narrow path of capillaries slows down the blood flow and allows plenty of time for oxygen to pass through the arterial blood.

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