BTEC Assignment 3.4 Microbial Diseases Mrs Barnes Y Dderwen

Objectives Today we shall: Recall the differences between the three microbe types Identify diseases caused by specific microbes Identify symptoms of these different diseases Add our findings to our coursework Recount how a virus enters the body, infects it and causes symptoms.

Success Criteria All of you will add the cause and symptoms of 3 diseases to your coursework sheets. Most of you will use the key words to recount the virus infection. Some of you will complete the merit task of annotating a cartoon strip.

FeatureFungiBacteriaViruses Cell membrane Cell wall Cell nucleus

FeatureFungiBacteriaViruses Cell membrane Yes No Cell wall Yes (hard) Yes (soft) No (protein coat) Cell nucleus YesNo (circle) No (strand)

Quick Quiz Hold up the correct card for each question

Bacteria Virus Fungi

Bacteria Virus Fungi

Bacteria Virus Fungi

Bacteria Virus Fungi

Bacteria Virus Fungi

Bacteria Virus Fungi

Which two microbes have a cell membrane? Fungus and virus Fungus and bacteria Virus and bacteria

Which two microbes have a cell membrane? Fungus and virus Fungus and bacteria Virus and bacteria

Which microbe has a hard cell wall? Fungus Bacteria Virus

Which microbe has a hard cell wall? Fungus Bacteria Virus

Which microbe has a soft cell wall? Fungus Bacteria Virus

Which microbe has a soft cell wall? Fungus Bacteria Virus

Which microbe doesn’t have a cell wall, and what is it’s outer coating called? Fungus – its called an overcoat Bacteria – its called a protein layer Virus – its called a protein coat

Which microbe doesn’t have a cell wall, and what is it’s outer coating called? Fungus – its called an overcoat Bacteria – its called a protein layer Virus – its called a protein coat

Which microbe has a nucleus? Fungus Bacteria Virus

Which microbe has a nucleus? Fungus Bacteria Virus

Which microbe has a circle of DNA? Fungus Bacteria Virus

Which microbe has a circle of DNA? Fungus Bacteria Virus

Which microbe has a strand of DNA? Fungus Bacteria Virus

Which microbe has a strand of DNA? Fungus Bacteria Virus

Pathogens - bacteria Pathogens are microorganisms that cause infectious disease. Bacteria and viruses are the main pathogens.

Bacteria Bacteria are microscopic organisms. They come in many shapes and sizes, but even the largest are only 10 micrometres long – 1000 in a millimetre!

Bacteria Bacteria are living cells and, in favourable conditions, can multiply rapidly. Once inside the body, they release poisons or toxins that make us feel ill.

Many microbes can cause diseases. Here are some diseases caused by bacteria: –tuberculosis, TB (affects the lungs) –salmonella (causes food poisoning) –whooping cough (affects the lungs) –gonorrhoea - a sexually transmitted disease

Pathogens - viruses Viruses are many times smaller than bacteria. They are among the smallest organisms known and consist of a fragment of genetic material inside a protective protein coat.

Pathogens - viruses Viruses can only reproduce inside host cells, and they damage the cell when they do this. A virus can get inside a cell and, once there, take over and make hundreds of thousands of copies of itself. Eventually the virus copies fill the whole host cell and burst it open. The viruses are then passed out in the bloodstream, the airways, or by other routes.

Many microbes can cause diseases. Here are some diseases caused by viruses: –chicken pox (affects skin and nerves) –common cold –influenza, flu –measles (affects skin and lungs) –mumps (affects salivary glands) –rubella, german measles

Pathogens - fungi Mushrooms and toadstools are fungi, but these are made of lots of cells, so they are not microbes. Yeasts are single-celled fungi, so they are microbes. Fungi are usually the biggest type of microbe. If there is just one of them, we call it a fungus.

Many microbes can cause diseases. For example here are some diseases caused by fungi: –athlete's foot –thrush

Skim Reading and Highlighting You must include the cause of the disease, is it VIRAL, BACTERIAL, or FUNGAL. How is it contracted / passed from one infected person to another? You need to identify the symptoms of the disease - some will be SHORT TERM, some will be more serious and are usually called COMPLICATIONS.

10 Minute Timer End You must include the cause of the disease, is it VIRAL, BACTERIAL, or FUNGAL. How is it contracted / passed from one infected person to another? You need to identify the symptoms of the disease - some will be SHORT TERM, some will be more serious and are usually called COMPLICATIONS.

Collect information identified by others You are going to use a ripple sheet to collect the information about 5 diseases The inner ring – identify the disease, the microbe type and how it is passed on. The second ring – identify the symptoms The third ring – identify any complications

If this is the answer what is the question? 1.Another name is flu.

If this is the answer what is the question? 2. Begins with the appearance of red sores, usually around the nose and mouth. These sores burst quickly leaving yellow- brown golden crusts. The crusts then dry leaving a red mark that generally heals without scarring

If this is the answer what is the question? 3. It is a skin disease caused by a fungus, usually occurring between the toes.

If this is the answer what is the question? 4. The symptoms are a swelling of parotid glands.

If this is the answer what is the question? 5. It is caused by a virus and is highly contagious, infecting up to 90% of people who come into contact with the disease. Its symptoms include cold-like symptoms followed by a high temperature and an intensely itchy fluid-filled blister-like rash.

If this is the answer what is the question? 6. Symptoms include the abrupt onset of fever, shivering, headache, cough, sore throat, aching muscles and joints. A serious complication could be pneumonia.

If this is the answer what is the question? 7. Is a bacteria that can cause food poisoning, the symptoms of which include vomiting and diarrhoea.

If this is the answer what is the question? 8. The symptoms are an itchy, scaly, dry rash on the bottom and sides of the feet and between the toes. There can be inflammation and blisters on the bottom of the feet. The blisters can lead to the cracking of the skin exposing raw tissue causing pain and swelling.

If this is the answer what is the question? 1.Another name is flu. 2.Begins with the appearance of red sores, usually around the nose and mouth. These sores burst quickly leaving yellow-brown golden crusts. The crusts then dry leaving a red mark that generally heals without scarring 3.It is a skin disease caused by a fungus, usually occurring between the toes. 4.The symptoms are a swelling of parotid glands. 5.It is caused by a virus and is highly contagious, infecting up to 90% of people who come into contact with the disease. Its symptoms include cold-like symptoms followed by a high temperature and an intensely itchy fluid-filled blister-like rash. 6.Symptoms include the abrupt onset of fever, shivering, headache, cough, sore throat, aching muscles and joints. A serious complication could be pneumonia. 7.Is a bacteria that can cause food poisoning, the symptoms of which include vomiting and diarrhoea. 8.The symptoms are an itchy, scaly, dry rash on the bottom and sides of the feet and between the toes. There can be inflammation and blisters on the bottom of the feet. The blisters can lead to the cracking of the skin exposing raw tissue causing pain and swelling.

Mini Plenary Turn to your neighbour: Tell your neighbour the cause and symptoms of one disease you have collected Is there anything they would add?

Now add to your coursework Task 1 This provides evidence for P5 The first part of your Information Pack must provide information about the different factors that can affect people’s health. Present a list of the factors, grouped as: medical factors − three micro-organisms Choose 3 of your 5

If you are complete Task 1 This provides evidence for P5 The first part of your Information Pack must provide information about the different factors that can affect people’s health. Present a list of the factors, grouped as: medical factors − three micro-organisms two carcinogens social factors – ten different factors, including factors related to diet and exercise Make sure you have added all 15

Merit work Task 2 This provides evidence for M4 For some of the examples you have given in Task 1, you should explain how body systems are disrupted, causing ill health. The examples you use must include: medical factors − one micro-organism

Flu You are going to watch two short films. You will caption a series of pictures to explain how the virus gets into the body, how it reproduces and why you feel ill. You have a series of key words to help you plan.

Literacy Stop Swap sheets and check for capital letters and full stops.

Check the Success Criteria All of you will add the cause and symptoms of 3 diseases to your coursework sheets. Most of you will use the key words to recount the virus infection. Some of you will complete the merit task of annotating a cartoon strip.