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November 29, 2020, 12:51:04 pm

Author Topic: VCE Biology Question Thread  (Read 1902256 times)  Share 

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Harrycc3000

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Re: VCE Biology Question Thread
« Reply #13035 on: September 28, 2020, 08:36:55 pm »
+5
Thank you Harry for your lengthy and detailed response! You're absolutely right that we shouldn't fixate on our scores and should use them as a basis for improvement!

I also have this exam tracker which I note the number of marks I lose in each topic and why I lose them. I usually get the questions wrong because silly mistakes or I misinterpreted the questions because the company exam wording is sometimes really weird. Practice questions are just not helping for some reason so do you all think that just doing more practice exams will help? The thing is because of lockdown, I can't print any exams and I have to look at them on my computer while answering questions. Is that going to severely impact me for the final exam?
For the printing thing I don't think it has that much of an impact because you're still doing the questions and thinking through the concepts and answering all the questions. I'm lucky enough to have a printer and a lot of ink but the only benefit I can think of is that the printed exams limit the amount of space you have so you appropriately concise. In terms of any other methods in improving I honestly don't think there is much more to do because at this point most people basically know all the content and how the specific processes work so there's not much to do in the way of that and as you've said a lot of the mistakes aren't because you're misunderstanding the biological processes but moreso what the exams wording is trying to tell you and I guess your interpretation. For my first sac at my school (was SAC 2 so was on responding to antigens and stuff) I remember that everyone was trying to alpha each other by like talking about concepts that were prob more advanced than vcaa covered and were thinking that by knowing like some weird concept they had an advantage over everyone. In the end though, the sac only covered the relevant vcaa content and a lot of people didn't score that well (including me) A+ cut off was like 80%, so I guess thats whats made me think about how the bio test prep is moreso about understanding the questions and what the examiners want than knowing all the extra bio content in the world (theres so much we don't know lol) One extra thing I'm doing though is flashcards which is pretty useful but a lot of my friends aren't doing them so I guess its based on your preference. Some of my flashcards are some mistakes I make on exams so I don't do them again lol and I find those kind of useful.
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homeworkisapotato

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Re: VCE Biology Question Thread
« Reply #13036 on: September 28, 2020, 09:07:36 pm »
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Thank you so much Harrycc3000! I guess it's just spamming practice exams and learning my mistakes until the exam day then!
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Coolgalbornin03Lo

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Re: VCE Biology Question Thread
« Reply #13037 on: September 29, 2020, 04:28:58 pm »
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Can introns be translated if they are kept after post transcriptional modification? What happens to them then?
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Chocolatepistachio

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Re: VCE Biology Question Thread
« Reply #13038 on: September 29, 2020, 04:40:51 pm »
+2
No I don’t think so introns are removed in post transcriptional modification 

WhatisaMeMe

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Re: VCE Biology Question Thread
« Reply #13039 on: September 29, 2020, 04:44:45 pm »
+2
Can introns be translated if they are kept after post transcriptional modification? What happens to them then?
Hey
-Introns cannot be translated as they don't code for any information for amino acids (they are not complementary to any anticodons of amino acid carrying tRNA) thus are spliced out.
Good luck on Exam :)
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p0kem0n21

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Re: VCE Biology Question Thread
« Reply #13040 on: September 29, 2020, 05:11:51 pm »
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Do we need to remember the names and types of tools developed by humans over time (e.g. 'Mousterian' technology), or can we just have a general sense of how these tools have become more advanced over time?

angrybiscuit

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Re: VCE Biology Question Thread
« Reply #13041 on: September 29, 2020, 05:14:37 pm »
+4
Do we need to remember the names and types of tools developed by humans over time (e.g. 'Mousterian' technology), or can we just have a general sense of how these tools have become more advanced over time?
No, cultural evolution is removed from the 2020 study design :)
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p0kem0n21

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Re: VCE Biology Question Thread
« Reply #13042 on: September 29, 2020, 06:10:10 pm »
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No, cultural evolution is removed from the 2020 study design :)


oh I'm doing bio 3/4 in 2021 lolololol

Owlbird83

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Re: VCE Biology Question Thread
« Reply #13043 on: September 29, 2020, 06:20:43 pm »
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oh I'm doing bio 3/4 in 2021 lolololol

You still definitely don't need to know types/names of tools. Just how they've gotten better over time, (and briefly know how tools tie to cultural evolution if they put it back on the SD)
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miyukiaura

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Re: VCE Biology Question Thread
« Reply #13044 on: September 30, 2020, 04:17:16 pm »
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Which trial exams have the best/hardest questions on human evolution that you've come across? Thanks :D
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Coolgalbornin03Lo

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Re: VCE Biology Question Thread
« Reply #13045 on: September 30, 2020, 05:25:52 pm »
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Hey
-Introns cannot be translated as they don't code for any information for amino acids (they are not complementary to any anticodons of amino acid carrying tRNA) thus are spliced out.
Good luck on Exam :)
What if some introns are retained through alternative splicing?

Also why is DNA more accurate for molecular homology other than the fact the genetic code is degenerate so change in DNA can occur without affecting Amino acid sequence?
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tiredandstressed

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Re: VCE Biology Question Thread
« Reply #13046 on: September 30, 2020, 05:58:31 pm »
+2
Which trial exams have the best/hardest questions on human evolution that you've come across? Thanks :D
NEAP is usually quite challenging (often beyond the course)
TSSM is also usually beyond the study design
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homeworkisapotato

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Re: VCE Biology Question Thread
« Reply #13047 on: September 30, 2020, 06:03:17 pm »
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What if some introns are retained through alternative splicing?
I'd suspect that a protein with a different tertiary structure gets translated and it would have a different function. I did some googling and apparently humans have a couple of proteins translated from mRNA containing introns, and those proteins have different functions from a protein that would be translated with all of the introns spliced out.

Also why is DNA more accurate for molecular homology other than the fact the genetic code is degenerate so change in DNA can occur without affecting Amino acid sequence?
Other than the fact that silent mutations cannot be detectable if you're looking at amino acid sequences many scientists actually prefer amino acid sequencing. This is because highly conserved proteins as a whole are less likely to mutate as they are crucial for survival and are therefore better to use to find remote evolutionary relationships.
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Chocolatepistachio

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Re: VCE Biology Question Thread
« Reply #13048 on: September 30, 2020, 06:04:45 pm »
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If introns are retained a wrong protein will get produced during translation,

Retained intron sequences lead to the introduction of premature termination codons

homeworkisapotato

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Re: VCE Biology Question Thread
« Reply #13049 on: September 30, 2020, 07:18:45 pm »
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Hey! My teacher told me that when writing the chemical equation for cellular respiration you have to either put 36 or 38 ATP and you cannot put 36-38 ATP. Similarly, when putting the inputs and outputs of electron transport chain, do we put 32-34 ATP or one of them?

Thank you so much!
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