2018 Science T01W05 Flashcards
Do bacteria split quickly or slowly?
Bacteria are capable of multiplying very fast. They multiply slowly in the cold and quickly in the warmth. Check this video out to see how quickly bacteria can multiply in warm spots.
What is Exponential Multiplication?
‘Exponential Multiplication’ occurs when one bacteria cell splits into two and then both of those cells split into two, and then all those cells split into two and so on and so forth.
What is Salmonella?
Salmonella causes typhoid fever, which is responsible for the death of 216,000 persons a year in endemic areas. It is spread through faeces and urine contamination.
Warning: Be very careful when handling bad eggs!
What is tetanus?
You can get contaminated by tetanus whenever you are injured where dirt-carrying spores might enter your system. i.e. rusty barbed wire. It gives you lockjaw and terrible spasms. It can make your muscles tense so tight that your bones break!
What is tuberculosis?
A potentially serious infectious bacterial disease that mainly affects the lungs.
Tuberculosis has even been found in the spines of mummies. There is no effective vaccine as yet and the disease often lies dormant for years in the respiratory system before being activated.
What is E. Coli?
This one bacteria can destroy our bowels, urinary tract, cause meningitis and much more. As we have seen, treatment is often available when the bacteria is caught early on or if you live in a developed country. Unfortunately, that is not the case for millions of people.
What is staphylococcus?
This disease developed because of an overuse of antibiotics. It is probably best known for causing the ‘flesh eating disease’. Now, one of the only cures is maggot therapy. If affected, the maggots will eat all the dead and gangrenous tissue, leaving healthy live tissue behind.
How quickly can bacteria multiply If conditions are right?
Every 20 minutes.
What do you call the way bacteria multiplies?
Exponential Multiplication.
Name a deadly bacteria that causes typhoid fever?
Salmonella.
What deadly bacteria has been found in the spines of mummies?
Tuberculosis.
You can get salmonella from eating what foods?
Eggs and Poultry.
Tuberculosis often lies dormant in which part of the body?
The respiratory system and the lungs.
What deadly bacteria can you contract from a dirt entering a wound?
Tetnus.
What can happen to your body when you have Tetnus?
Lockjaw, muscles spasms and broken bones from tense muscles.
What does E.coli stand for?
Escherichia coli.
What is the bacteria that can destroy our bowels, urinary tract and cause meningitis?
Escherichia coli.
What deadly bacteria is resistant to antibiotics?
Golden Staff or Staphylococcus.
What organism produces antibiotics?
Mould.
Who discovered Antibiotics?
Alexander Fleming.
What did Fleming notice?
Bacteria could not survive close to mould.
What type of mould produced antibiotics?
Penicillium notatum.
What bacteria was Fleming studying when he discovered antibiotics?
Staphylococcus.
What year did Fleming make his discovery?
1928.
How does penicillin kill bacteria?
It attacks the cell wall.
What was the name of the hospital Fleming worked in?
Saint Mary’s.
Why do we need to be careful with antibiotic use?
Bacteria are starting to develop antibiotic resistance.
What micro-organisms are killed by antibiotics?
Bacteria only.
