What are we learning today? Any ideas? http://www.youtube.com/w atch?v=--ykTqoQnqI Learning objective: L5: What are the different types of micro organism? L6: What are the differences between bacteria, viruses and fungi? L7: What substances can kill/inhibit growth of microorganism? Science skill: To carry out the practical effectively in pairs True or False? 1. Going out in the cold can infect you with a cold? F 2. A red face is a sign of good health? F 3. Looking at your fingernails can give clues to your health? T 4. Smoking is good for your health? F 5. You cannot catch any diseases from kissing? F 6. There are no fungal diseases that affect humans? F 7. Your dog can pass a number of diseases on to you? T Complete the sentences There are three types of microbe: _ _ _ _ _ _ _ _, __ _ _ _ and __ _ _ _ _. They have something in common: they are all very very _ _ _ _. All three can cause _ _ _ _ _ _ _. bacteria small viruses Diseases fungi • 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. Strand of genes (RNA)instead of DNA inside nucleus • Viruses are the smallest type of microbe. • As a virus can only reproduce inside a cell, some people are not convinced that viruses are really living things Protein coat Individual fungi don’t move around. But they can spread by making tiny spores that are carried by wind and rain and grow into new fungus cells when they land. Fungi come in a variety of shapes and sizes and different types. Yeast cells look round or oval under a microscope. They're bigger than bacteria, but still too small for your eyes to see them individually. Difference between fungi, bacteria and virus Feature Fungi Bacteria Virus Cell membrane Cell wall Cell nucleus Hard Soft Protein coat Circle RNA Strand Antiseptics From the images and keywords below try writing the definition of antiseptic. Antiseptics Antiseptics From the images and keywords below try writing the definition of antiseptic. antiseptics. Safety First: Wear safety goggles Stand up Tuck your chair & bags under your desk Tie back long hair Do not open agar or swallow Working in pairs 1) Where do you draw the lines to separate the petri dish? • Top • Bottom 2)Where do you write your names? • Top • Bottom • Edge 3)Where do you write the names of the antiseptics? • Top • Bottom Petri dish with agar and microbe Paper disc Name A + Name B Hand wash water Dettol Tears Marker pen Ruler Forceps paper disc Sticky tape When the bacteria have grown in your Petri Dish DO /NOT OPEN IT! Take the paper disc using forceps and dip it into the antiseptics (hand wash, dettol, tears and water) 2) Place the correct antiseptic disc onto the correct section of the Petri dish. (repeat it 3 times)pyramids 3) Using sticky tape stick on the sides to secure the Petri dish. 1) Prediction, control, variables What are we expecting to see? What variables are you controlling? Independent and dependent variable? L5: Look at five household objects and write down their names L6: Define the following keywords: -Antiseptic -Antibiotics -Antibodies -Analgesic -Antigens Explain biogenesis (A4) handwritten L7: Explain the controversial issues on MMR Vaccine (A4) handwritten