YR3-CH10-LSN2
Assignment 1 - R:
1. HIV is caused by a fungus.
2. Disinfectants can be used to sterilise tools.
3. TB is caused by a bacterium.
4. Our skin is our biggest organ.
5. Antiseptics can be used to sterilise skin.
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Slide 1: Slide
BiologieMiddelbare schoolhavo, vwoLeerjaar 2
This lesson contains 16 slides, with text slides.
Items in this lesson
Assignment 1 - R:
1. HIV is caused by a fungus.
2. Disinfectants can be used to sterilise tools.
3. TB is caused by a bacterium.
4. Our skin is our biggest organ.
5. Antiseptics can be used to sterilise skin.
Slide 1 - Slide
Assignment 1 - R:
FALSE - 1. HIV is caused by a fungus.
TRUE - 2. Disinfectants can be used to sterilise tools.
TRUE - 3. TB is caused by a bacterium.
TRUE - 4. Our skin is our biggest organ.
TRUE - 5. Antiseptics can be used to sterilise skin.
Slide 2 - Slide
Assignment 2 - T1:
Slide 3 - Slide
Slide 4 - Slide
Assignment 2 - T1:
1. the flies - the touch surfaces and can transfer disease.
2. the cigarettes - the ash can contaminate food.
3. the blood on the jackets - old blood can contain bacteria and help bacteria survive.
4. the coughing - spread of bacteria and viruses.
5. the nose picking - spread of bacteria and viruses.
6. the dog in a food store - the lick everything including poop
7. the dirty rag - if it is warm germs can multiply in the rag and be spread around when used.
8. the open mop bucket - the dirty water works as a spa for germs.
9. the dead poultry beside the raw ham - certain bacteria can cross contaminate.
Slide 5 - Slide
Assignment 2 - T1:
Slide 6 - Slide
Assignment 2 - T1:
Slide 7 - Slide
Assignment 2 - T1:
Slide 8 - Slide
Assignment 2 - T1:
Slide 9 - Slide
Assignment 3 - T2:
a. What does carbolic acid do?
b. Did he use the carbolic acid only as an antiseptic or also as a disinfectant, please explain your answer?
c. Lister was seen as a real frontrunner, many doctors did not become aware of germs till 30 to 40 years later. Explain how you think a patient could quickly die of an infection in those days.
Slide 10 - Slide
Assignment 3 - T2:
a. What does carbolic acid do?
A very poisonous chemical substance made from tar and also found in some plants and essential oils (scented liquid taken from plants). Carbolic acid is used to make plastics, nylon, epoxy, medicines, and to kill germs.
b. Did he use the carbolic acid only as an antiseptic or also as a disinfectant, please explain your answer?
Also as a disinfectant because he also used it to clean his surgical instruments.
c. Lister was seen as a real frontrunner, many doctors did not become aware of germs till 30 to 40 years later. Explain how you think a patient could quickly die of an infection in those days.
- many healthcare workers did not clean their hands properly.
- many people did not have the healthiest diet so lso not a great immune system.
Slide 11 - Slide
Assignment 3 - T2:
Slide 12 - Slide
Assignment 3 - T2:
it avoids direct physical contact with the pathogen and the gloves are thrown away after every patient.
it avoids water droplets containing the pathogen getting into your eyes and therefor not infecting you.
it avoids water droplets containing the pathogen getting into your mouth and nose and therefor not infecting you.
it avoids direct physical contact with the pathogen and the overall is thrown away after every patient.
it avoids water droplets containing the pathogen getting into your eyes and therefor not infecting you.
it avoids direct physical contact with the pathogen and the covers are thrown away after every patient.
Slide 13 - Slide
Assignment 4 - I:
The following question will be about malaria and the image beside.
a. What is malaria?
b. By which vector is malaria spread?
c. How do you protect yourself from this vector?
d. How do you prevent malaria with tablets?
e. Can one person give malaria to another directly?
f. How can malaria kill you?
Slide 14 - Slide
Assignment 4 - I:
a. What is malaria?
malaria is a single cell parasite that infects your liver and blood
b. By which vector is malaria spread?
Malaria is spread by mosquito's biting people to suck their blood, as the inject some saliva to numb the spot the malaria parasite enters the blood.
c. How do you protect yourself from this vector?
Mosquitos nets, covered-up clothes and use deed.
Slide 15 - Slide
Assignment 4 - I:
d. How do you prevent malaria with tablets?
Some tablets prevent the malaria dividing in your liver and others stop the dividing in the blood.
e. Can one person give malaria to another directly?
no they cannot
f. How can malaria kill you?
- the fever can kill you
- the liver damage can kill you
- the blood cells can be so badly damaged
