IGCSE Biology 7th Jan 2015

78/180 for a C isn't too bad. I need a B or this was a waste. I wish you could access the questions from home sooner to check on things..im stressing until march :-)

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Reply 26

biodesign

Do you know the release date for March Martin? Well we both put lactose and similar things for fish farming, so I think we are on our ways to at least a B!

Reply 27

HaHa stupid log in name ..im actually a Martina :-)
The college gave me a letter today about result collection on 7th March by 4:30 or. they get posted

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Reply 28

Original post by biodesign

Well June 2013 a C was 78/180 and just looking through that I think this one was much harder!

hopefully we may all get good marks , it is not . Treat it like a test ;/ we can still re-sit

You know in paper 1 i am completely struggling

Reply 29

Hi guys I replied to another thread about this too. I found paper 2 harder as the hour just flew by! I put nitrogen for the milk question and seriously doubting that one! What did you guys put for the water pollutant BOD question? I put milk just because it was the highest. I looked up as many answers as I could for both after and definitely got some wrong and some right. Im only after a C so really hope Ive done enough for that. X

Reply 30

Original post by Lolla82

I write milk as well but for the another one , i wrote protein because it said
' Biological Molecule ' Dont sure as well

Here it says about Protein on wiki
Proteins (/ˈ p r oʊ ˌ t iː n z / or /ˈ p r oʊ t i .ɨ n z /) are large biological molecules, or macromolecules, consisting of one or more long chains of amino acid residues. Proteins perform a vast array of functions within living organisms, including catalyzing metabolic reactions, replicating DNA, responding to stimuli, and transporting molecules from one location to another. Proteins differ from one another primarily in their sequence of amino acids, which is dictated by the nucleotide sequence of their genes, and which usually results in folding of the protein into a specific three-dimensional structure that determines its activity.

(edited 9 years ago)

Reply 31

I think protein sounds like the right one didnt it say chemical rather than biological in question though? I forgot almost straight away a lot of it!! Id love to see the paper now and second guess my potential mark to prepare myself!(for the worst!)

Reply 32

Original post by martinismartini

So thats one of the ones i was rushing through..went for lactose which now sounds ridiculous...what did you put?

on the fish farm i put the 3 benefits as....
safety from predators
safety from young salmon being eaten by the larger ones which happens
steady large supply of food as they get fed and grow bigger.
How about you?

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I wrote the same point but i am so afraid about this question
i put the keyword right
intraspecific predation but i write the explanation slighty wrong , i dont sure that give me 1 mark on that or not . i said it prevent the larger ones will eat the smaller one 's food

Reply 33

Original post by co2mymail

I struggled with this my brain wouldnt work!! I put about predators and then some really rubbish answers as my mind went blank - something about stopping things from floating on top and I cant even remember the third point so definitely not expecting top marks! I had sinisitus so was really hard to focus on this paper.

How did you guys draw the graph?

Reply 34

oh my....the age/energy kilojoule graph?
As soon as I plotted evertything i realised i completley messed up...i put the ages along the bottom and kilojoules up ! instead of a standard curve i got a )
I still managed to interpret the data to anwser further q's but made a note in the margin explaining i realised my mistake and hope i get a kind examiner!

Reply 35

also im worried about about anwsers being wrong due to any question misreading...it was was way to fast

Reply 36

Original post by Lolla82

i am 100% sure it say biological i think nitrogen you may get the mark as well . since nitrogen is a component of protein

Reply 37

Guys , i am serious i think there is no need for worrying on this paper because we cant change anything . Anyway , i am struggling in paper 1 so i think i may resit - -

I honestly think no one do worse than mine

Reply 38

Original post by martinismartini

I initially did the graph this way!!! Luckily had time to erase and redo.

Original post by co2mymail

It just fees like so long to wait doesn't it I already have a plan B in place just to prepare myself. What do you feel least confident about in paper1?

Reply 39