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

Food poisoning is an illness caused by eating contaminated food. Most people will get better without the need for treatment. In most cases, the food that causes the illness has been contaminated by bacteria

Extracts from this document...


Many living things are so small that they can only be seen through a microscope. These living things are called microorganisms or microbes. There are three main types of microbe. They are bacteria, fungi and virus. Bacteria Bacteria are usually smaller than fungi. If there is just one of them, we call it a bacterium. Bacteria have many different shapes. Some have 'tails' (called flagella) that let them swim. Food poisoning is an illness caused by eating contaminated food. Most people will get better without the need for treatment. In most cases, the food that causes the illness has been contaminated by bacteria, such as salmonella, or a virus. Salmonella is an infection caused by Salmonella bacteria. It infects our intestines causing diarrhoea and vomiting. By cooking the burgers on a high heat for a very short time we are more likely to burn the outside without heating the inside therefore the bacteria is active and infectious. That's why it's important to allow the barbeque to settle to a continuous heat before putting the burgers on and turning midway through to ensure even cooking. Just touching an uncooked burger and then putting our fingers in our mouth can potentially gives us food poisoning so a couple of bites of an uncooked burger would be enough to ensure a few bad stomachs the next day because the bacteria travel to our stomach. ...read more.


Here are some of them: * Acid in the stomach kills many microbes. * Sticky mucus in the lungs traps microbes and then cilia sweep it out of the lungs. * The skin stops microbes from getting into the body. * Scabs form on the skin if you get a cut, stopping microbes from getting into our body. * Lysosome tears contain enzymes that can kill bacteria. The Immune System The body has an immune system that kills microbes if they get past the natural barriers. White blood cells are very important in the immune system. There are different sorts of these cells, but they can do two main jobs. * Some white blood cells can engulf microbes and kill them. * Some white blood cells can make substances called antibodies that stick to microbes. Microbes have chemicals called antigens. Different microbes have different antigens. White blood cells have chemicals called antibodies. White blood cells can stick to microbes if they have the right antibody to match the antigen on the microbe. When this happens the microbes can be killed, or clumped together to make it easier for other white blood cells to kill them. Lymphocytes are a type of white blood cell made by bone marrow. ...read more.


Wash dishcloths and tea towels regularly and let them dry before we use them again. Dirty, damp cloths are the perfect place for bacteria to breed. 4. Use separate chopping boards for raw food and for ready-to-eat food. Raw foods can contain harmful bacteria that can spread very easily to anything they touch, including other foods, worktops, chopping boards and knives. 5. It's especially important to keep raw meat away from ready-to-eat foods such as salad, fruit and bread. This is because these foods won't be cooked before we eat them, so any bacteria that get on to the foods won't be killed. 6. Always cover raw meat and store it on the bottom shelf of the fridge where it can't touch other foods or drip on to them. 7. Cook food thoroughly and check that it's piping hot all the way through. Make sure poultry, pork, burgers, sausages and kebabs are cooked until steaming hot, with no pink meat inside. 8. Keep fridge temperature below 5C. By keeping food cold, we stop food poisoning bugs growing. 9. If we have cooked food that we're not going to eat straight away, cool it as quickly as possible (within 90 minutes) and store it in the fridge or freezer. 10. Don't eat food that's past its "use by" date label. These are based on scientific tests that show how quickly harmful bugs can develop in the packaged food. By Zarin Tasneem 9x2 ...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 Living Things in their Environment 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 Living Things in their Environment essays

  1. Marked by a teacher

    Is the MMR vaccination safe?

    5 star(s)

    How was MMR tested for safety? Some people who are against the use of MMR claim that it has not been tested for safety thoroughly enough. However, the government says it was comprehensively tested before it was introduced. MMR began to be used in the UK in 1988, but before then it had been used for

  2. Peer reviewed

    What is DNA?

    5 star(s)

    Mitosis takes place only in somatic cells. When a cell is not dividing, its chromosomes become very long and thin. Along the length of the chromosomes is a series of chemical structures called genes. The chemical which forms the gene is DNA.

  1. Human biology short notes

    Allows sedimentation of the solid particles Activated sludge Process 4. Oxidation Tank * Oxygen is passed to airate the tank * Oxygen is needed for aerobic bacteria to become active * Bacteria digests harmful organic material in effluent (liquid) * Effluent is now free of harmful material 5.

  2. Stem Cell Research

    this small number of cells also now has the ability to multiply indefinitely, just as embryonic stem cells can. Therefore, within a few weeks, a noticeable culture of "induced pluripotent stem cells" will become apparent. Advantages and Disadvantages of Induced Pluripotent Stem Cells.

  1. Should people with diabetes 2 receive medical treatment?

    have a role in forming cell membranes and nerve tissue and are thought to have a beneficial effect on the heart and immune system. It is recommended that just over 1% of our energy intake should come from essential fatty acids.

  2. Should you vaccinate using the HPV vaccine?

    When the white blood cells discover these they will blind the antigen causing a neutralizing effect.15 The diagram below shows how the vaccine works in more detail. Small amounts of diseased antigens from an infected organism are injected into your body.15 The diagram portrays the white blood cells recognising alien

  1. is the mmr vaccination safe?

    In 2010 there were only '12 cases in England and Wales.' This would make vaccination really important because many young children may be in contact with pregnant women. In the year before MMR vaccination was introduced, around 40 babies were born with congenital rubella syndrome.

  2. Are Vaccines safe?

    This is known as Herd Immunity. For this level of protection to be achieved 95% of the population has to be immunised. This is the target for the government as it almost ensures protection.

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