Qualification > Sciences
CHEM AND BIO HELP AND TIPS HERE
rahuldevnani93:
Heyy guys,
Hope your preparations are rocking.
Nyways I have few doubts in bio.
Q1) Describe the use of fermenter in the production of :- (i) Antibiotics [3 marks] ; (ii) Single - Cell Protein [3 marks]
Q2) Explain the advantages & the dangers of using antibiotics to treat infections. [ 5 marks]
Q3) Describe the use of antibiotics for the treatment of diseases. [ 3 marks]
Thanks guys...
All the BEST!!! (Y)
Baladya:
1) It is basically the same... The only difference is that in this fermenter u use a bacteria like pencillium for making pincillin and the other uses single cell protein to make protein.
The process:
First The bacteria is put with sugar and other types of food that it feeds on. Air is also let in the fermenter. This allows the bacteria to grow normally. When they are mature they start secreting the product wanted (pencillin or protein). When the process is over the culture (the mixture) is filtered and treated to obtain the pincillin or protein.
Also u need to know that the mixture is filtered throughout the process. This is very important for: 1- Keeps the fungus in contact with the fresh supplies of nutrients. 2- mixes oxygen throughout the fermenter. 3- but also 'rolls the fungus up into little pellets'. This makes it quite easy to seperate the liquid part of the culture.
2)I dont have enough info, but what i know is... Adv: kills infections (duh). this: can cause the disease to becomes resistant to this particular antibiotic if taken for a long time or u stopped taking it b4 the end of the period ur doctor prescribed. This is why medicine companies need to make new medicines each year
3) m pretty sure u dont need to know about this in details in IGCSE. It has smth to do with making ur body antibodies active and so go fight this mf disease :P But i dont think we need to know this...
Vin:
hey <3 ur signature .. :P
Hesham Mhd:
Hey, sry but i'll ask something silly, if in a question they asked us 2 draw a SUITABLE GRAPH, is it ok if we drew a bar chart?
nid404:
depends on what kinda question it is.
Give me examples....I'll tell you how to distinguish then :)
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