Qualification > Sciences
Biology help HERE ONLY!!
AS girl:
Thanks ;) useful pal!
nid404:
--- Quote from: sgvaibhav on May 26, 2009, 11:34:01 am ---hey more doubts
:D
what all do we need to know, i mean what all do we need to know to make from these
i mean what all anaerobic stuff are we supposed to make?
wine, beer, cheese, yogurt, bread, what all?
just wanted to know that and also if someone had links to make these, if would be good.
i hate this part the most.
--- End quote ---
We have yoghurt making, baking, brewing
Yeast can respire without oxygen, fermenting sugars to produce carbon dioxide and alcohol.
In baking:
-a mixture of yeast and sugar is mixed with bread dough;
-the mixture is left in a warm place;
-carbon dioxide, produced by the yeast respiration, causes the bread to rise;
-the bread is then baked.
In the production of yoghurt:
-a starter culture of bacteria is added to warm milk;
-the bacteria ferment the milk sugar (lactose), producing lactic acid;
-lactic acid causes the milk protein to form a solid material.
Brewing
-Yeast respires sugar to form ethanol and CO2
-The source of sugar is usually fruit juice or grain
-The ethanol makes the drink alcoholic; carbon dioxide gives the drink its fizz. The process is called fermentation
SGVaibhav:
wow only these 3
great
other wise i would have spent time learning that cheese and ughh other boring stuff
thanks for the explanation
+rep
so basically brewing makes alcoholic drinks such as wine, beer etc ...
lil^$tar:
da help was gud
SGVaibhav:
Can anyone describe the structure of a motor neuron and a sensory neuron.
Not the whole part, only about axons-dendrons-dendrites.
there was a question in that past papers
A motor neuron was given
State two features that distinguish it from other types of nerve cell.
Answer:
Its cell body is terminal.
Has long axon
OR
It has motor end plates
It has many dendrons and dendrites
I have highlighted the parts which i dont understand
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