IGCSE/GCSE/O & A Level/IB/University Student Forum
Qualification => GCE AS & A2 Level => Reference Material => Topic started by: xim7007 on March 28, 2011, 06:40:31 pm
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lets discuss the difficulties and possible questions that can come for the bio unit 5 exam june 2011
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Hi,
Nice idea. download the article here (quicker than trying to search it anywhere else in the forum)
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lets discuss the difficulties and possible questions that can come for the bio unit 5 exam june 2011
Alhamdurillah, this time the article is good and interesting, esp since its all about sports and bla bla...hehe..anywa..lets jus put up all the questions that our teachers giv us..k...il try 2 post mine as fast as possible...iA!
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hey guys...who else is giving the edexcel Biology unit 5 exam in this may/june session?
The article is linked to the drugs section in chapter 7 mostly...this chapter is quite interesting and so is the article as hermione said...have you guys started revising already? how many modules are you guys sitting for in this exam session along with the unit 5 paper? what are your feelings about the exam? do you think it will be easy or hard? i feel it would be more difficult than the previous paper...do share your the questions provided by your teachers...i study privately so i do not have any one to help me with the question part...anyways revise well :)
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im doing this exam but i really dnt know what we have to do for the article
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The last question of unit 5 - question no. 7 - is worth about 30 marks. All parts of qn no. 7 in the unit 5 exam paper are based either on the article or the article + the specification(the textbook, i mean). So you will have to study the article before the exam as you will have almost no time to read and study the whole article during the exam - but it will be provided with the qn paper so do not worry, you will not have to memorize the whole article. You will have to use information from the article, the specification (the textbook) as well as your common sense to answer the part qns of unit 5 question paper :)
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hey guys...who else is giving the edexcel Biology unit 5 exam in this may/june session?
The article is linked to the drugs section in chapter 7 mostly...this chapter is quite interesting and so is the article as hermione said...have you guys started revising already? how many modules are you guys sitting for in this exam session along with the unit 5 paper? what are your feelings about the exam? do you think it will be easy or hard? i feel it would be more difficult than the previous paper...do share your the questions provided by your teachers...i study privately so i do not have any one to help me with the question part...anyways revise well :)
yea..it is linkd mostly wid muscles n all dat, but dnt overlook d fact dat ther is actually alot from u4-chap6, n u1 n u2 also...inshallah i'l b sittin 4 all da 3 units.(Allah please HELP!!!)...feelings??---easy or hard depends on how 'interesting' the paper is..because 4 me...if its one of those tedious lengthy paper, then 4gt it!!!:P
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The last question of unit 5 - question no. 7 - is worth about 30 marks. All parts of qn no. 7 in the unit 5 exam paper are based either on the article or the article + the specification(the textbook, i mean). So you will have to study the article before the exam as you will have almost no time to read and study the whole article during the exam - but it will be provided with the qn paper so do not worry, you will not have to memorize the whole article. You will have to use information from the article, the specification (the textbook) as well as your common sense to answer the part qns of unit 5 question paper :)
have u got some sample questions ??
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INSHAALLAH v all will do well...well I haven't got any sample qns but I hope some of the students in this forum who are doing this paper will be able to provide some....and yes there are links in the article to the other units as well...revise well! gud luck 2 all...:)
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some questions our teacher gave us.. hope it helps.. http://www.mediafire.com/?l3yvtxzypol5i15 (http://www.mediafire.com/?l3yvtxzypol5i15)
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Thank u so muchh buddy...may ALLAH bless u!! did ur teacher provide u wid the answers to these qns?? Thanks a lotzz :)
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some questions our teacher gave us.. hope it helps.. http://www.mediafire.com/?l3yvtxzypol5i15 (http://www.mediafire.com/?l3yvtxzypol5i15)
thank you so much f u have more plzzzz give us !!!!
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Thanks alot man really helps. :)
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ooops i didnt see the answers to the qns....they were wid the qns itself...anywayz Thanks buddy!:)
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I also have some qs which we discussed wid my teacher but as they were a discussion we didnt have time to ryt da answers hehehhe but the answers can be easily found in the article :) they r pretty much std!
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hey this doc for unit 5 qns is not in the right format...could u plz uload it in the right format?? Thanks
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I also have some qs which we discussed wid my teacher but as they were a discussion we didnt have time to ryt da answers hehehhe but the answers can be easily found in the article :) they r pretty much std!
hey cn u pls upload the answers too ??
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here are some questions 4 revision...the answers r real simple...ol d best!
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hey this doc is not in the proper format because i cannot download it....could you plz upload it in the proper format so that i can...plz..n Thanks a lotz
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any answers ? ;)
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hey this doc is not in the proper format because i cannot download it....could you plz upload it in the proper format so that i can...plz..n Thanks a lotz
do u use MSWord07?
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nopss only MS WORD 03 :(
dat means i cannot download it....so cud u plz upload it in MS WORD 03 format or pdf or any...in which ever u can thnxx...
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oh no probz :)
here u go in da word 2003 format!
enjoy :P :D
n me no have answers but they r pretty easy ryt? read da article as much as u can even in ur bathroom breaks ;) hehehhe
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Salaam,
Book lover, Thanks a lotz u r a gr8 help!! the answers r pretty easy....how many times have u read the article?? :)
and
Hermione granger, could u plz upload ur qns in MS WORD 03 format?...or any other format like pdf?...Thanks buddy! :)
if anybody else have qns provided by ur teachers plz share...thnxxx
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sry b-in so late, mkh...was a bit busy!!! ;)
anywa..here it is.these r sum qstns dat i mde up myslf 4 revising...the answers r really simple. i still didnt get arnd 2 typin em up...hehe...chory abt dat 2.. ;D..
anywa, B.O.L..n njoy!! 8)
AH!
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any answers ? ;)
dragon, really sory, but i havent got round 2 typing the answers. they are realy simple actually, jus refer ur AS & A2 books 4 all the processes... jus revision answrs...and if you hav N-E doubt u cud ask!
npbs!
anywa, Take care!
n B.O.L!
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ok...my doubt.. ???.
plz..plz...
teme...wat is RNA interference???
Thanks in adv! ;D
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hey hermione, Thanks a lotz for the qns!!...so if these qns r made by u, did ur teacher provide u wid any qns also? If she did, plz share them wid us 2...:)
RNA ineterference is not in our specifiation so to get info on RNA interference simply type "RNA interference" in google and look for its details in the links that then appear. Wikipedia's a good place to look -- http://en.wikipedia.org/wiki/RNA_interference
Also, try this -- http://www.rnainterference.org/
u can look into many sites to get info about RNA interference and after that, without any doubt u will have a pretty good idea about it, I hope.
Need anything else? Type up in google and search :)
This is how I did it.
So overall how r u preparing for the article part of Unit 5?
Read the article and read it again and again, understand it, look for anything u do not undersand, type up qns and answer them and what else??
Along with Unit 5 are u also preparing for the Unit 6B paper? If yes, how do u prepare for it? did ur teacher provide u with any notes, worksheets etc.?? any suggestons regarding this paper would be very much appreciated....Thanks! Cheers! :)
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Hey book lover,Thanks for ur qns and I have a few doubts from the qns that u provided which I hope u will be able to answer:
5. Risks and benefits of IGF-therapy? Describe the process of IGF1
a) Natural process in the body
--my doubt: benefits of IGF 1 therapy are clearly described in the article but what about the risks?? they have not been stated except for on thing that is mentioned which is about the therapy been given to a patient with a rare liver ailment and he died....that is all.
And what do u mean by the rest of the question? by this do u mean that we have to describe how IGF-1 repairs muscles in a natural process of repairing and building muscles when we undergo excercise overload?
12. What are the risks of AVV? -- my doubt: what is AVV? is it AAV that u mean? Adenoviruses or Adeno-Associated Viruses??
If it is Adeno-Associated Viruses, what can be the possible risks associated with it? I did not read anywhere in the article regarding the risks of AAV...I just read that "smaller than an adenovirus, an AAV cannot carry as much cargo but is less vulnerable to attack from the immune system". But I did read the risks of using adenovirus in gene therapy which is that it is more vulnerable to attack from the immmune system than an AAV.
19. Authenticity of this article? --my doubt: what do u mean by this?
Thanks a lotzz! Cheers!
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sry b-in so late, mkh...was a bit busy!!! ;)
anywa..here it is.these r sum qstns dat i mde up myslf 4 revising...the answers r really simple. i still didnt get arnd 2 typin em up...hehe...chory abt dat 2.. ;D..
anywa, B.O.L..n njoy!! 8)
AH!
hey cn u plz post the answers too !!
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Welcome guys :D
Oh n no worries Mkh!! :D i will get ur doubts cleared asap inshAllah! :D
Just give me da tym till wed perhaps as im having my mocks but i sure will! :)
Happy Studying!! :D
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hey mkh..i google 2 wen m in doubt!!!hehe...anywa, comin to u6, i usually jus solve past w1 n w2 question paprs..da bst part is the lst question of plan of investigation has usually either a 20/10 mark plannin..thn the rest all the questions hav d similar answers...as in reliabilty, statistical methods and all. anywa, 4 u6, jus do d past w1 n w2 paprs...also learn n assess the practicals specified in the specifications! n keep on refreshin ur bio knowledge...iA its gna b cul!Take care..B.O.L! 8)
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hey cn u plz post the answers too !!
A.S.A.P, buddy!!!!(Inshallah!!) ;D
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thankYu all those who UPloaded questions :) God blesS!!
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cheee..... many Thanks i really neeeded something like those merci merci and may allah help us on this exam wit all A*s ameeen ;D
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inshaAllah Ameen Sum AMeen
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Hiya! salams!!
So sorry 4 da delay mKh :)
here r ur answers regarding ur doubts!
5. Risks and Benefits of IGF therapy:
Risks: (page 5 paragraph 5 and 6) for example: wear off quickly, mice are not humans so the same result cant be predicted, problems wid repeated dosings, body system might wipe out virus b4 gene can be delivered....
Benefits: (page 5 para 2)
Describe the process of IGF therapy.
Yes, u r ryt. Its the natural process in the body not Igf therapy. Sorry abt dat :) page 4 para 3
12. What are the risks of AAV (Adeno associated virus) ?
Yes, another mistake. The question should be reframed to : What are the limitations regarding AAV?
theres only 1 point 2 this: AAV cant carry as much load, not risk free, unexpected side effects
19. Authenticity of the article means if this article has enough validity regarding its DATA and Facts. you can just answer this by saying Yes or No and proving your answer...
For example: pg 10 Acknowledgement Yes, the article is based on latest articles from scientific journals such asNew scientist magazine and you can also name sul of da scientists mentioned in the article!!
If u have any more queries feel free :)
;)
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really nervous
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Thanks booklover!! Thanks a lotzz...no probz...i know eevryone is soo busy nowadayzz...Thanks again! :)
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thnk u book lover and everyone 4 da the help and ishallah da exam become easy and we get all A*'s AMEEEN- pretty optimistic am i....lol ;D ok throw away all ur negative thoughts and study welll and hard
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jacksprww 22
cpuld u provide us with unit 6 B (international) notes by stafford valentine redden !
he x soooooooooooo awsum :D
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i hate the article. it couldn't be more BORING
and i hate the argument! we live in a world obsessed with making money. and it's only about winning. even the ancient olympics were only about winning! they used to cheat too!
we're the ones who want records broken every year! we want to see people run 100 km in 3 seconds! if you're not gonna ban professional sport, then don't bother talking about banning drugs!
what happened to playing a sport for the sake of being fit and having fun?? it's a godforsaken game for god's sake!
and why are we even paying any attention to any of this? seriously, what is more important? finding out ways to stop drugs abuse by sportspeople, or trying to find a cure for anemia? "oh, i'm so jealous of lance armstrong, we better make sure we don't make a drug that makes another lance armstrong. i can't even ride a bike for 10 minutes. i think this is way more important than trying to stop little kids from dying before they're even 28 because their blood cells couldn't carry enough oxygen." seroiusly. if we start paying more attention to the really important things in our horrible world, we might actually stop devolving.
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i hate the article. it couldn't be more BORING
and i hate the argument! we live in a world obsessed with making money. and it's only about winning. even the ancient olympics were only about winning! they used to cheat too!
we're the ones who want records broken every year! we want to see people run 100 km in 3 seconds! if you're not gonna ban professional sport, then don't bother talking about banning drugs!
what happened to playing a sport for the sake of being fit and having fun?? it's a godforsaken game for god's sake!
and why are we even paying any attention to any of this? seriously, what is more important? finding out ways to stop drugs abuse by sportspeople, or trying to find a cure for anemia? "oh, i'm so jealous of lance armstrong, we better make sure we don't make a drug that makes another lance armstrong. i can't even ride a bike for 10 minutes. i think this is way more important than trying to stop little kids from dying before they're even 28 because their blood cells couldn't carry enough oxygen." seroiusly. if we start paying more attention to the really important things in our horrible world, we might actually stop devolving.
haha...mate, i do agree with u..n i hope some of those edxcl ppl who sets d article sees this...bt until then v (students) can do nothing abt it...bt jus prepare for the exam!:P
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:)
thanks, matey. i'm glad i'm not the only one who thinks like this.
i just want to get good A level grades and then fix the world! :D free medicine for everyone. <3
good luck for the exam, pal!
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hi guys i just found out some problems related to the article.
1) what is the difference between muscle dystrophy and muscle atrophy, or are they the same thing?
2) what is the difference between IGF-1 and MGF?
3) how does intensive exercise lead to the buildup of muscles?
4) how to Human Genome Project relate to gene therapy?
5) how do peptide hormones lead to the formation of proteins? (like what is peptide hormones?)
hope someone could solve for us and benefit SF members! :)
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thanks!
i'll work on them once i finish uppy my physics work. :)
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aww remember to work well on your physics then. i also have C4 on monday and PH4 on tuesday. damn i just picked up the article today!!!!
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and also some questions:
1) why is there a difficulty in researching with Foxo to overcome atrophy?
2) what are anti-wasting drugs? what is the advantages and disadvantages of anti-wasting drug?
3) why genes are partly responsible for the developnment of cancer and heart disease?
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thanks again!
i'll put up my answers in a bit
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notReverend im still waiting :)
and someone somewhere asked for the difference between dystrophy and atrophy of muscles:
Atrophy is wasting of muscles, without death of muscle cells, where as dystrophy is wasting of muscles due to death of muscle cells.
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sorry!!!!
i had physics unit 4
but maybe other people did too.
give me one more hour! please!
sorryyyy
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okay, here are the first few:
1) what is the difference between muscle dystrophy and muscle atrophy, or are they the same thing?
They are not the same thing. Muscle atrophy is a wasting away of muscle from disuse or poor nutrition, and can be total or partial loss of function associated with the lessening of muscle mass secondary to nervous, vascular or nutritional causes. Muscle dystrophy is a degeneration of the muscles or any organs caused by a disease process, and can also be caused by malnutrition. Dystrophy is primarily a disease of the muscle itself, and it caused by mostly genetic factors.
2) what is the difference between IGF-1 and MGF?
When a person’s pituitary glands release human growth hormone, it causes the liver to release IGF-1. IGF-1 is at its highest in childhood and stimulates muscle growth. MGF is a variant of IGF-1, and stimulates myoblasts division and allows for muscle fibers to fuse and mature. (Myoblasts are undifferentiated cells in the mesoderm of the vertebrate embryo that is a precursor of a muscle cell.) The difference between IGF-1 and MGF is that IGF-1 stimulates cell growth in muscles, kidneys, bones, liver, lungs, and nerves (among other body cells) and MGF stimulates myoblasts division through stimulation of different receptors.
3) how does intensive exercise lead to the buildup of muscles?
Forced lengthening of the muscle with high weight loads causes microscopic tears in the small fibers that make up the muscle and connective tissues. Thus, the muscle is physically damaged. After exercise, fluid begins to build up in the damaged cells in order to bring in immune cells such as neutrophils and macrophages to the site of injury. The muscle cells are then repaired, muscle energy is replenished, and the fibers are built back up bigger and stronger than before.
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4) how to Human Genome Project relate to gene therapy?
Genes control heredity and provide the basic biological code for determining a cell’s specific functions. Gene therapy seeks to provide genes that correct or supplant the disease-controlling functions of cells that are not, in essence, doing their job. For gene therapy to advance to its full potential, scientists must discover the biological role of each of these individual genes and where the base pairs that make them up are located on the DNA. This led to the development of the Human Genome Project in 1990. A genome map would clearly identify the location of all genes as well as the more than 3 billion base pairs that make them up. With a precise knowledge of gene locations and functions, scientists may one day be able to conquer or control diseases that have plagued humanity for centuries.
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5) how do peptide hormones lead to the formation of proteins? (like what is peptide hormones?)
I won’t answer the first part because honestly, it is a tough question (for me at least), and after searching it online for some time, it looks like protein synthesis is indirectly influenced by peptide hormones, but I could be wrong.
Peptide hormones, also referred to as protein hormones vary considerably in size (anywhere from 3 amino acids to the size of a glycoprotein). Most of them circulate in the blood without getting bound to other proteins and the half-life of circulating peptide hormones is only a few minutes. If they do not immediately circulate into the bloodstream, they are stored in the granules of the concerned cells.
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okay, here are the first few:
1) what is the difference between muscle dystrophy and muscle atrophy, or are they the same thing?
They are not the same thing. Muscle atrophy is a wasting away of muscle from disuse or poor nutrition, and can be total or partial loss of function associated with the lessening of muscle mass secondary to nervous, vascular or nutritional causes. Muscle dystrophy is a degeneration of the muscles or any organs caused by a disease process, and can also be caused by malnutrition. Dystrophy is primarily a disease of the muscle itself, and it caused by mostly genetic factors.
Could they really ask something like this ? I mean aren't questions about the article supposed to relate things in the article to topics we took in our course ? How could they ask about differences of something you never heard of before :-\
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5) how do peptide hormones lead to the formation of proteins? (like what is peptide hormones?)
I won’t answer the first part because honestly, it is a tough question (for me at least), and after searching it online for some time, it looks like protein synthesis is indirectly influenced by peptide hormones, but I could be wrong.
Peptide hormones, also referred to as protein hormones vary considerably in size (anywhere from 3 amino acids to the size of a glycoprotein). Most of them circulate in the blood without getting bound to other proteins and the half-life of circulating peptide hormones is only a few minutes. If they do not immediately circulate into the bloodstream, they are stored in the granules of the concerned cells.
Peptide hormones act as transcriptional factors, binding to the repressor on the promotor on the gene responsible for the production of a certain protein/enzyme. It changes its shape and releases it, freeing the promotor so that RNA polymerase can now bind to it. Then the gene is trascribed and the mRNA is translated to produce the protein.
Hope that helps :D
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Could they really ask something like this ? I mean aren't questions about the article supposed to relate things in the article to topics we took in our course ? How could they ask about differences of something you never heard of before :-\
you deffo have a point. i don't think a question like this will actually be on the paper tomorrow, because like you said, we've just read about atrophy and dystrophy, so it really shouldn't be asked. i'm only answering it here because someone put the question up, and i said i would answer them.
certainly working my brain here, though :)
don't sweat it, though. i'm sure questions that actually come from our syllabus will show up and not the other way around.
good luck everyone!
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Peptide hormones act as transcriptional factors, binding to the repressor on the promotor on the gene responsible for the production of a certain protein/enzyme. It changes its shape and releases it, freeing the promotor so that RNA polymerase can now bind to it. Then the gene is trascribed and the mRNA is translated to produce the protein.
Hope that helps :D
thanks! it deffo did! gawd, i just hope this doesn't actually come up on the paper, though. how many people know all this stuff? i'm getting all the answers from the internet, not me textbook!
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Don't get me wrong , thanks a lot for answering :P ! I just panicked because I couldn't answer
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anytime, anytime. what are we here for, right?
i'm waaay too tired to panic now. i hate edexcel and i cannot wait to see three really good grades on my certificate. :)
i just hope that everyone else had good grades, too. ;D
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1) why is there a difficulty in researching with Foxo to overcome atrophy?
The FoxO transcription factors govern development, proliferation, survival and longevity during multiple cellular environments that can involve oxidative stress. They are also closely integrated with several novel signal transduction pathways, that may influence the ability of FoxO to act as a ‘double-edged sword’, to sometimes promote cell survival, but at other times lead to cell injury.
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2) what are anti-wasting drugs? what is the advantages and disadvantages of anti-wasting drug?
i think i missed the part on anti-wasting drugs. not being able to find it in the article, and i also don't see much about it on google.
???
so, this question is up for grabs, that is, if anyone actually wants to take a stab at it
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never mind...
so, an anti-wasting drug basically stops the body from dismantling muscle when we stop using it (yes, i'm more or less quoting from the article atm)
the aim of the drug is to tackle weakness in the sick and elderly, and to help astronauts during their time in outer-space.
so, the 'disadvantage' would be that athletes could pick these up and use them to prevent any muscle atrophy, maybe in between competitions and tournaments, maybe to compete better.
the advantage that i can see is that people who really suffer from either atrophy or dystrophy will benefit from this drug. they will be able to retain their muscles, or at least some of their muscles, say, after breaking a leg, or in the midst of a disease that causes dystrophy, etc.
i'll leave the answer like this, okay? frankly, i'm not too confident about the question, so i don't want to think too much on it. hope nobody minds...i've been hoping a lot lately, eh?
and i'm talking to myself right now :p
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wow thanks a lot guys!!! these explanations surely helped me a lot for the exam ( which less than 2 hours are left :) )
and sorry if i raised some somehow nonsense questions. i just saw on the practice files uploaded in this board and could not solve these questions so i asked them.
+rep to all especially to not Reverend and hope u all do well in bio u5!!!
(By the way the phy4 is really tough, especially the electronic spreadsheet question and the momentum conservation problem. i got final KE > initla KE :( )
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wow thanks a lot guys!!! these explanations surely helped me a lot for the exam ( which less than 2 hours are left :) )
and sorry if i raised some somehow nonsense questions. i just saw on the practice files uploaded in this board and could not solve these questions so i asked them.
+rep to all especially to not Reverend and hope u all do well in bio u5!!!
(By the way the phy4 is really tough, especially the electronic spreadsheet question and the momentum conservation problem. i got final KE > initla KE :( )
Good luck for Biology. (:
Remember, no discussion of the exam until 24 hours have passed.
Discussion can be done here: https://studentforums.biz/gce-as-a2-level-(cie-edexcel)/edexcel-2011-mayjune-examination-discussion-!/
:D
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Good luck for Biology. (:
Remember, no discussion of the exam until 24 hours have passed.
Discussion can be done here: https://studentforums.biz/gce-as-a2-level-(cie-edexcel)/edexcel-2011-mayjune-examination-discussion-!/
:D
ooops sorry... but isn't 24 hours past already when i left my comment?
anyway ya i'll bear in mind of that :)
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dragon_knight, you're very, very welcome!
actually, I really have to thank you. answering your questions really helped me answer the questions on the exam. wopee!
i'll be back later deffo after 24 hours to give more details.
next up for me, chemistry!
and that's not in this topic, that's for sure :)