Microflora HELP please :) (1 Viewer)

[Atotoi]

In an attempt to answer the Syllabus point below -

gather, process and present information from secondary sources to show how a named disease results from an imbalance of microflora in humans

I checked the Hsc.csu.edu.au website, yet that didnt offer much...
how can i apply MALARIA to this question?!?!?!

Any help appreciated, thanka

 

[malkin86]

You can't do malaria for this question... sorry!

Malaria is a macroparasite, microflora is ... microflora. All humans have small populations of golden staph on their skins, among other microfloras... when there is an open wound, the golden staph can reproduce v. quickly and take over the wound site, causing an infection. Hence, disease from an imbalance in microflora.

 

[neo o]

You could also do thrush....

ie : Thrush is caused by the fungi Candida albicans. The fungi occurs naturally in the mouth, respiratory tract, female genital tract etc etc.

Thrush occurs when there is an imbalance in the amount of Candida albicans cells, which are usually kept in balance by competition from other micro-organisms such as lactobacilli. The balance can be disrupted from drugs like steroids, oral contraceptives, malnutrution etc.

 

[babydoll_]

microflora are microorganisms such as fungi... malaria is caused by macroparasites... but as neo_o said, thrush is a good example

 

[Atotoi]

haha
thanks muchly Neo_o and BabyDoll
Syllabus point covered -

 

[neo o]

malaria is caused by macroparasites...

You've got good eyes

 

[babydoll_]

i forgot the name

its protozoa

 

[Atotoi]

Okies people - can ya'll help me with this question?
This isnt really covered bymy textbook nor the hsc.csu.edu.au website :S

process, analyse and present information from secondary sources to evaluate the effectiveness of vaccination programs in preventing the spread and occurrence of once common diseases, including smallpox, diphtheria and polio

 

[frodo]

basically vaccination programs introduced by the World Health Organisation have been very effective in decreasing the incidence and the mortality rate from diseases such as smallpox, dipththeria and polio. these diseases used to spread in epidemic proportions but are now very rare. students in australia are immunised against all three of these diseases with booster injections subsidised by the government

 

[Atotoi]

Thanks all
"Search For Better Health" topic covered

 

[Tommy_Lamp]

In the 2002 Independant Paper, there is a question that asks, "Use an example to outline how the body's natural microflora prevents disease when an imbalance occurs".
I tried to relate it to neo_o's example above regarding lactobacilli keeping thrush in check, but when a candida albicans imbalance occurs, what stops it from infecting the body?

 

[neo o]

Perhaps you could say something about medication which stimulates the growth of competiting microflora?

Its a tricky question.

 

[Tommy_Lamp]

Is there a form of medication that aids the growth of lactibaccili?
Perhaps a type of steroid?

 

[~*HSC 4 life*~]

ohy my god i didnt even know this dpt existed until 5 min ago...sigh


there's SO much to know for bio grrrrr

 

[neo o]

Is there a form of medication that aids the growth of lactibaccili?
Perhaps a type of steroid?

I think Yakult might have lactobaccilli in it actually, same with yoghurt.

 

[Tommy_Lamp]

hmm i see...i think this can only be solved by my biology teacher 2mrw. ill post his answer

 

[neo o]

For those interested :

From the marking guidelines

Question 28
Many responses included descriptions of secondary immune responses and linked this to the
vaccination program. Most candidates correctly proposed that a reason for the frequent vaccinations
was the immaturity of the immune system of infants.

Question 28
Outcomes assessed: H3, H4
MARKING GUIDELINES
Criteria Marks
• Outline of secondary immune response and immaturity of immune
response
• Links both to repeated inoculation at early age to immaturity of immune
response
4
• Outline of secondary immune response and immaturity of immune
response
• Links one to repeated inoculation at early age
3
• Outline of secondary immune response and immaturity of immune
response
• No links provided
2
• Recognises that immunity is an acquired process 1

 

[Tommy_Lamp]

Would you also need to identify that the reason the immune system doesnt develop when in the womb is because the baby has passive immunity from the mother?

 

[NeRdY]

Yep yakult has lactobacilli as does yoghurt. that is why after taking antibiotics, the doctor recommends, particularly females, to take more yoghurt and things high in natural bacteria because the antibiotics while killing the bad bacteria, can kill the good bacteria at the same time resulting in a decrease in the microflora (good bacteria) hence thrush develops!

Thrush is easily understood, or another example is dental plaque although personally this really confuses the hell outta me!

 

[nik_noodle]

gather, process and present information from secondary sources to show how a named disease results from an imbalance of microflora in humans

Thrush is caused by the fungal pathogen candida albicans. The fungus is present naturally throughout the body, but an imbalance can occur following long courses of antibiotics, and physical and mental exhaustion.
There are 2 main forms of thrush, vaginal and oral. Symptoms of vaginal include a cheese like discharge, itchiness and redness, whilst oral thrush symptoms can include a sore throat, nausea and a loss of appetite due to acute pain when swallowing.
Treatment usually consists of pessaries, lozanges and locally applied creams and gels. In extreme cases specialised medications can be put together by a pharmacist. Treatment is directed at regulating the balance of microflora in the infected region.

Thats what I have anyway...