8 cc under attack methodius
TRANSCRIPT
8C Doctors and diseases
Mr Sedgwick 30 03 11
Under Attack
All Describe how microbes can be carried from person to person in various ways.
Most Describe a disease caused by each type of microbe
Some Explain one way our body copes with parasites
Keywords
Disease FeverInfect DiagnosisInfectiousSymptomsParasite, vector
Soy sauce - Aspergillus
Soy sauce - Aspergillus
Soy sauce - Aspergillus
Yoghourt - Lactobacillus
Blue cheese - Penicillium
Budding yeast cells
Aerobic respiration
Glucose + oxygen →
Anaerobic respiration
Glucose →
What’s the limiting factor?
All – Starter about pathogens and Worksheet Starter
Most – Diseases wordsearch
Some – Page 40 Qn 1 - 10
Success Criteria
How do microbes enter the body?
There are 7 ways for diseases to enter the body, can you get them all?
You have 1 minute
Microbes can enter the body in many different places.
How do microbes enter the body?
eyes
mouth
cuts
nose
ears
genitals
skin
Different defence mechanisms
Bacterium structure
Virus structure
Fungi (yeast) structure
You have 2 minutes to study this table very carefully and try to remember it!
viruses bacteria
influenza (flu) food poisoning
mumps sore throats
chickenpox tuberculosis (TB)smallpox tetanus
polio cholera
rabies typhoid
German measles whooping cough
fungi
fungal sinusitis
athlete’s footOnychomycosis(causes discoloured
toe nails)
viralmeningitis
bacterialmeningitis
Which type of microbe?
What do white blood cells do?The human body has a number of natural defences against microbes. Noses are hairy inside to trap microbes!
Some white blood cells can destroy microbes by engulfing them.
Some white blood cells are able to produce chemicals called antibodies. These pairing with matching antigens on the surfaces of microbes and so help the white blood cells to engulf microbes.
white blood cell
antibody
antigen
The body also produces white blood cells to help defend it from microbes.
White blood cells
• http://www.dnatube.com/video/4330/White-Blood-Cell-Chases-Bacteria
• http://animations.3d4medical.com/Phagocytosis-animation_AN2435.html
Antibodies
• http://www.youtube.com/watch?v=lrYlZJiuf18
Plenary
Plenary