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

body systems

Extracts from this document...

Introduction

Unit 10:- Human Physiology for Health and Social Care P3+p4 For the human to survive and function properly, we need energy to let the cells repair themselves. To get this energy, we need to consume three main substances; * Carbohydrates (one of the three main classes of food and a source of energy. Carbohydrates are the sugars and starches found in breads, cereals, fruits, and vegetables, which, during digestion, are changed into a simple sugar called glucose. Glucose is stored in the liver until cells need it for energy.) * Protein (A naturally occurring combination of amino acids. Protein is one of the essential components of all living things and the diet of animal organisms.) and, * Lipids (Another term for fats that can be broken down into fatty acids.) It is important to eat a healthy amount of the substances found above because food provides energy that the cells need to develop, change, and multiply. It also provides them with energy so they can repair themselves. ...read more.

Middle

Then they are absorbed through the intestine wall as small beads. The pancreas produces a large amount of liquid, (insulin) shortly after food is eaten. The insulin that is produced contains three enzymes: * Lipase (digests lipids (fat)) * Amylase (digests starch (carbohydrate)) * Trypsin (digests protein) The intestine glands complete the digestion process when the wall of the intestine absorbs all of the needed energy. They have a large surface area which means they can absorb large amounts of liquids at any time, meaning maximum energy is produced from the food eaten. Below is a diagram showing the digestive system. As part of a fully functioning human body, the body needs to maintain a constant internal environment. Homeostasis is when an organism maintains the constant internal conditions necessary for life. The heart rate, body temperature, breathing rate and the blood glucose levels all have constant internal conditions. The way this is achieved can be shown through flow charts; I am going to draw one for each of; * Heart rate * Body temperature * Breathing rate and, * Blood glucose. ...read more.

Conclusion

so larger amounts of oxygen is inhaled so the rate of breathing increases. The heart rate is the number of times the heart pumps blood around the body and the amount of beats per minute. In order to have a homeostatic heart rate it needs to be at a constant rate. The heart pumps blood around the body because the organs and tissues need oxygen to survive. This one function does have some inconsistency. Body Temperature The ability to control body temperature is extremely important if we are to survive, the bodily temperature is a system where there is room for slight variation, if our temperature rises or falls below or above 37�C (a human's average body temperature) then we will begin to feel quite ill. There are lots of different factors that contribute to our body's temperature. For example if we exercise, our body temperature goes up; this is when our sweat glands open so we can sweat. Sweating is a way our bodies cool down, which is inevitable. Below is a diagram that shows how our body reacts when our temperature drops and rises. ?? ?? ?? ?? P3+p4 Holly Shute 1 ...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 Humans as Organisms 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 Humans as Organisms essays

  1. Cardiovascular and Respiratory Systems

    The onset of fatigue (tiredness) is delayed because of higher maximum oxygen uptake, due to the air capacity in the lungs increasing from the training and endurance on the lungs. Critical Evaluation of the short and long term effects, of running and swimming on the Cardiovascular and Respiratory System.

  2. HSC Module-Blueprint of Life

    * DUPLICATION: A section of the chromosome is copied on the same chromosome; that is, the same section of DNA appears twice * INVERSION: A section breaks off and is reattached the wrong way * TRANSLOCATION: A piece of DNA from one chromosome breaks off and attaches to a neighbouring

  1. human body system

    Villi has single layer of cells. Any food that has not been digested passes into large intestine where water is absorbed from food. The content of the large intestine take about 12 to 24 hours to pass through the rectum for excretion.

  2. human physiology

    The main function of your ribs is to protect your vital organs * Sternum: this is a long flat bone located in the centre of the chest, also known as your breastbone * Radius: this is situated on the forearm and extends from the outside of the limb * Ulna: this is also known as the elbow bone.

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