4 Micro-organisms Micro-organism Man! The word MICRO means very small. (So you need aMicroscope to seeit!)Micro-organism Man!
5 Micro-organisms Micro-organisms So Micro-organisms are very Micro- very smallOrganism- a living thing.So Micro-organisms are verysmall living things!N.B Viruses are often classed as micro-organisms but technically they are NON-Livingso call them Microbes instead!Micro-organismman
6 Microbe uses carouselYou will be assessed in this activity for AF2
8 Bread mould experiment You are going to look at mould growing on bread over 2 weeks.
9 DiseasesWhat is the scientific word for a microbe that causes disease?Name an example of a disease caused by a bacteria, virus and fungus?
10 Bacteria The good the bad and the ugly! Bacteria The good the bad and the ugly!Bacteria are small living single celledorganisms that can come in good(beneficial) forms and bad (pathogenic)forms that cause disease.Some different shapes of bacteria
11 Bacteria can double in number every 20 minutes!
12 The motility (movement) of some bacteria in culture. How fast! Pseudomonas aeruginosa
13 Bacteria help to break down faeces (poo) in sewage works. Good bacteriaBacteria help tobreak downfaeces (poo) insewage works.
14 Bad bacteria in the mouth cause teeth to rot. Mouth bacteriaMouth bacterium
15 MRSA- the bacterial superbug MRSA- the bacterial superbug! Methicillin Resistant Staphylococcus aureusMethicillin(anantibiotic)WON’TWork tocure thisinfection!
30 Virus SMALLEST microbe Also NOT technically alive… Protein Coat Strand of DNASMALLEST microbeAlso NOT technically alive…
31 Fungi Fungi are organisms that produce spores Why did the mushroom wantto go out with the toadstool?Because he was a Fungi to bewith!FungiFungi are organisms that produce sporesand come in the form of moulds, yeasts,mushrooms and toadstools.They also help things to rot and breakdownwhich is an essential process in the cycle of life.
32 Examples of fungi Mould growing a bread bun Yeast cells budding There can be good forms offungus (used to makebread/beer) and bad forms(Mould, Athletes foot and thrush).Yeast cells budding
47 Yeast What type of microbe is yeast? What do we use yeast to make? What types of respiration does yeast do?
48 Plan an investigation into one factor that affects yeast growth You are going to put yeast, sugar, a drop of washing up liquid and warm water in a measuring cylinderChoose one factor to change and investigateWrite the Aim, prediction, and variables
49 Aim: to observe yeast growth Time (mins)Height of bubbles (mm)
50 The first line of defense How can diseases be passed from one person to another?What is the bodies’ first line of defense to stop microbes entering?